PDS_VERSION_ID = PDS3
RECORD_TYPE = FIXED_LENGTH
RECORD_BYTES = 80
OBJECT = TEXT
PUBLICATION_DATE = 1999-03-09
NOTE = "Software Interface Specification for
the Mars Global Surveyor Radio
Science Occultation Summary (OCCSUM)
file. Formatted for display or
printing at 58 lines per page with up
to 78 constant width characters per
line."
END_OBJECT = TEXT
END
Stanford Center for Radar Astronomy
Mars Global Surveyor
Software Interface Specification
Occultation Summary Data File
prepared by
Richard A. Simpson
Center for Radar Astronomy
Stanford University
Stanford, CA 94305-9515
650-723-3525
Version 2.0.2
9 March 1999
PREFACE
|====================================================================|
| |
| DOCUMENT CHANGE LOG |
| |
|====================================================================|
|REVISION|REVISION| SECTION | REMARKS |
| NUMBER | DATE | AFFECTED | |
|--------+--------+------------+-------------------------------------|
| 2.0 |98/11/13| All |Adapted from Mars Observer version; |
| | | | conversion to detached PDS labels; |
| | | | removal of SFDU labels. |
|--------+--------+------------+-------------------------------------|
| 2.0.1 |98/12/16| 4.2.1 |Change DATA_SET_ID to MGS-M-RSS-5- |
| | | Fig. 4-2 | SDP-V1.0 |
| | | A.1 | |
|--------+--------+------------+-------------------------------------|
| 2.0.1 |98/12/22| A.1 |Removed ROW_SUFFIX_BYTES from label |
|--------+--------+------------+-------------------------------------|
| 2.0.1 |98/12/22| 1.3 |Update reference [2] |
|--------+--------+------------+-------------------------------------|
| 2.0.2 |99/03/09| 1.5.4.1 |Substituted 7-bit ASCII characters |
| | | 1.5.4.2 | for 8-bit versions |
|====================================================================|
|====================================================================|
| |
| ITEMS TO BE DETERMINED |
| |
|====================================================================|
| REVISION | SECTION | ITEM DESCRIPTION | RESOLUTION |
| NUMBER | AFFECTED | | |
|----------+----------+------------------------+---------------------|
| 2.0 | 1.3 |Update of [3] | |
|====================================================================|
Distribution
PDS/JPL
Y. Oliver.............171/264 yolanda.oliver@jpl.nasa.gov
V. Henderson..........171/264 Valerie.Henderson@jpl.nasa.gov
M. Martin.............171/264 michael.d.martin@jpl.nasa.gov
PDS/Washington University
E. Guinness......Dept E&P Sci guinness@wunder.wustl.edu
R.E. Arvidson......Dept E&P Sci arvidson@wunder.wustl.edu
PDS/NMSU
R. Beebe......Dept. Astronomy rbeebe@nmsu.edu
L. Huber......Dept. Astronomy lhuber@nmsu.edu
Stanford University
R. Simpson.........Durand 232 rsimpson@magellan.stanford.edu
L. Tyler...........Durand 232 len@nova.stanford.edu
D.P. Hinson..........Durand 232 hinson@nimbus.stanford.edu
J.D. Twicken.........Durand 232 joe@neptune.stanford.edu
Jet Propulsion Laboratory
S.W. Asmar...........MS 161-260 sami.w.asmar@jpl.nasa.gov
P. Priest..........MS 264-325 trish@rodan.jpl.nasa.gov
W.L. Sjogren.........MS 301-150 wls@kamel.jpl.nasa.gov
R. Springer MS 264-214 richard.j.springer@jpl.nasa.gov
R. Woo.............MS 238-725 richard@oberon.jpl.nasa.gov
Goddard Space Flight Center
D.E. Smith.............Code 920 dsmith@tharsis.gsfc.nasa.gov
F. Lemoine...........Code 926 flemoine@olympus.gsfc.nasa.gov
F.M. Flasar............Code 693 mike@leprss.gsfc.nasa.gov
Centre Nationales d'Etudes Spatiales
G. Balmino...............GRGS balmino@pontos.cnes.fr
California Institute of Technology
A. Ingersoll..............GPS api@helene.gps.caltech.edu
University of Colorado
B. Jakosky............CU/LASP jakosky@argyre.colorado.edu
NASA Ames Research Center
R. Haberle...........MS 245-3 bhaberle@mail.arc.nasa.gov
Contents
Preface.............................................................ii
Document Change Log...............................................ii
Items to be Determined........................................... ii
Distribution.....................................................iii
Contents..........................................................iv
Acronyms and Abbreviations....................................... vi
1. General Description...............................................1
1.1. Overview......................................................1
1.2. Scope.........................................................1
1.3. Applicable Documents..........................................1
1.4. System Siting.................................................1
1.4.1. Interface Location and Medium.............................1
1.4.2. Data Sources, Transfer Methods, and Destinations..........1
1.4.3. Generation Method and Frequency...........................2
1.5. Assumptions and Constraints...................................2
1.5.1. Usage Constraints.........................................2
1.5.2. Priority Phasing Constraints..............................2
1.5.3. Explicit and Derived Constraints..........................2
1.5.4. Documentation Conventions.................................2
1.5.4.1. Data Format Descriptions..............................2
1.5.4.2. Time Standards........................................3
1.5.4.3. Coordinate Systems....................................3
1.5.4.4. Limits of This Document...............................3
1.5.4.5. Typographic Conventions...............................3
2. Interface Characteristics.........................................4
2.1. Hardware Characteristics and Limitations......................4
2.1.1. Special Equipment and Device Interfaces...................4
2.1.2. Special Setup Requirements................................4
2.2. Volume and Size...............................................4
2.3. Labeling and Identification...................................4
2.4. Interface Medium Characteristics..............................4
2.5. Failure Protection, Detection, and Recovery Procedures........5
2.6. End-of-File Conventions.......................................5
3. Access............................................................6
3.1. Programs Using the Interface..................................6
3.2. Synchronization Considerations................................6
3.2.1. Timing and Sequencing Considerations......................6
3.2.2. Effective Duration........................................6
3.2.3. Priority Interrupts.......................................6
3.3. Input/Output Protocols, Calling Sequences.....................6
4. Detailed Interface Specifications.................................7
4.1. Structure and Organization Overview...........................7
4.2. Detached PDS Label............................................7
4.2.1. Label Header..............................................7
4.2.2. Label Body................................................9
4.3. Data File.....................................................9
Appendix A. Example Data Products..................................10
A.1. Example Label................................................10
A.2. Example Data File............................................18
Figures
4-2. Label Header - Standard Keyword and Value Pairs...............7
Acronyms and Abbreviations
ANSI American National Standards Institute
ASCII American Standard Code for Information Interchange
CCSDS Consultative Committee for Space Data Systems
CD Compact Disc
CNES Centre National d'Etudes Spatiales
dB Decibel
DSN Deep Space Network
FEA Front End Assembly
GSFC Goddard Space Flight Center
IEEE Institute of Electrical and Electronic Engineers
IAU International Astronomical Union
JPL Jet Propulsion Laboratory
J2000 IAU Official Time Epoch
K Degrees Kelvin
kB Kilobytes
km Kilometers
MB Megabytes
MGS Mars Global Surveyor
NAIF Navigation and Ancillary Information Facility
NASA National Aeronautics and Space Administration
NAV Navigation Subsystem/Team
NMSU New Mexico State University
OCCSUM Occultation Summary data file
PDS Planetary Data System
RS Radio Science
RSS Radio Science Subsystem
RSTP Radio Science Temperature Pressure (profile)
SCET Space Craft Event Time
SFDU Standard Formatted Data Unit
SIS Software Interface Specification
SOPC Science Operations Planning Computer
SPARC Sun Scaleable Processor Architecture
TBD To Be Determined
TDB Temps Dynamique Barycentrique - IAU Standard Ephemeris
Time
UTC Universal Coordinated Time
WO Write Once
1. General Description
1.1. Overview
This Software Interface Specification (SIS) describes Radio
Science Occultation Summary (OCCSUM) data files from the Mars Global
Surveyor (MGS) Mission. OCCSUM files were created at Stanford
University and contained results of processing MGS radio occultation
data to obtain the structure of Mars' atmosphere [1]. OCCSUM files
contained summaries of results from one or more Radio Occultation
Temperature-Pressure (RSTP) data files. The MGS Mission was managed
by the Jet Propulsion Laboratory (JPL) for the National Aeronautics
and Space Administration (NASA).
1.2. Scope
The format and content specifications in this SIS apply to all
phases of the MGS Mission for which the OCCSUM was produced. OCCSUM
products covered by this SIS include those at both standard
(approximately 200 m vertical) resolution and high (approximately 20
m vertical) resolution.
1.3. Applicable Documents
[1] Tyler, G.L., G. Balmino, D.P. Hinson, W.L. Sjogren, D.E. Smith,
R. Woo, S.W. Asmar, M.J. Connally, C.L. Hamilton, and R.A. Simpson,
Radio Science Investigations with Mars Observer, J. Geophys. Res.,
97, 7759-7779, 1992.
[2] SU-MGS-RSTP, Atmospheric Temperature Pressure Profile Data File,
Software Interface Specification, Stanford University, 22 December 1998.
[3] MO 642-321, Mars Global Surveyor Planetary Constants and Models,
JPL D-3444, November 1990.
[4] Planetary Science Data Dictionary, JPL D-7116, Rev. D, 15 July
1996.
[5] Planetary Data System Standards Reference, JPL D-7669, part 2,
24 July 1995.
1.4. System Siting
1.4.1. Interface Location and Medium
OCCSUM files were created by the Stanford Mars Global Surveyor
Radio Science processing system, which consisted of Sun SPARC-Ultra
workstations and associated peripherals.
1.4.2. Data Sources, Transfer Methods, and Destinations
OCCSUM files were created by the Stanford MGS Radio Science
processing system. OCCSUM files were distributed electronically
via the Stanford MGS Radio Science server and were written to
Compact Disc (CD) write-once (WO) media for archive with the
Planetary Data System (PDS).
1.4.3. Generation Method and Frequency
OCCSUM products were generated by extracting and reformatting
information contained in keyword and data headers on RSTP files [2].
Each OCCSUM file contained data from one or more occultation events;
a typical OCCSUM contained data from occultation events over a
period of one month. Separate OCCSUM files were created for standard
and high-resolution RSTP files. OCCSUMs were generated when the
data for the appropriate orbits become available, were processed,
and had been staged for delivery.
1.5. Assumptions and Constraints
1.5.1. Usage Constraints
None.
1.5.2. Priority Phasing Constraints
None.
1.5.3. Explicit and Derived Constraints
None.
1.5.4. Documentation Conventions
1.5.4.1. Data Format Descriptions
The reference data unit is the byte. Data may be stored in
fields with various sizes and formats, viz. one-, two-, and four-byte
binary integers, four- and eight-byte binary floating-point numbers,
and character strings. Data are identified throughout this document
as
char 8 bits character
uchar 8 bits integer
short 16 bits integer
long 32 bits integer
float 32 bits floating point (sign, exponent, and
mantissa)
double 64 bits floating point (sign, exponent, and
mantissa)
u (prefix) unsigned (as with ulong for
unsigned 32-bit integer)
other special data structures such as
time, date, etc. which are
described within this document
If a field is described as containing n bytes of ASCII
character string data, this implies that the leftmost (lowest
numbered) byte contains the first character, the next lowest byte
contains the second character, and so forth.
An array of n elements is written as array[n]; the first
element is array[0], and the last is array[n-1]. Array[n][m]
describes an n x m element array, with first element array[0][0],
second element array[0][1], and so forth.
Floating point (real) numbers are represented in ASCII using the
FORTRAN E or F formats. Fixed point (integer) numbers are represented
using the FORTRAN I2 or I5 format.
1.5.4.2. Time Standards
OCCSUM files used the January 1.5, 2000 epoch as the standard
time. Within the data files, all times were reported in Universal
Coordinated Time (UTC) as strings of 23 ASCII characters. The time
format is "YYYY-MM-DDThh:mm:ss.fff", where "-", "T", ":", and "."
are fixed delimiters; "YYYY" is the year "19nn" or "20nn"; "MM" is a
two-digit month of year; "DD" is a two-digit day of month; "T"
separates the date and time segments of the string; "hh" is hour of
day; "mm" is the minutes of hour (00-59); "ss" is the seconds of hour
(00-59); and "fff" is in milliseconds. Optional suffix "Z" explicitly
indicates use of the UTC reference.
The date format is "YYYY-MM-DD", where the components are
defined as above.
1.5.4.3. Coordinate Systems
The OCCSUM used the areocentric fixed body coordinate system
[3].
1.5.4.4. Limits of This Document
This document applies only to OCCSUM data files.
1.5.4.5. Typographic Conventions
This document has been formatted for simple electronic file
transfer and display. Line lengths are limited to 80 ASCII
characters, including line delimiters. No special fonts or structures
are included within the file. Constant width characters are assumed
for display.
2. Interface Characteristics
2.1. Hardware Characteristics and Limitations
2.1.1. Special Equipment and Device Interfaces
OCCSUM files were created on the Stanford MGS Science Operations
Planning Computer (SOPC) using ASCII formats. They were stored in
electronic form on the Stanford MGS Radio Science server and on CD-WO
media.
2.1.2. Special Setup Requirements
None.
2.2. Volume and Size
OCCSUM products have variable length, depending on the number of
occultation events included in the file. The summary information for
each occultation occupies 324 bytes. The file size is the product of
the record length times the number of events included in the file.
For 300 occultations (approximately the number expected from one
month) the OCCSUM file size would be 97200 bytes for either standard
or high resolution profiles.
2.3. Labeling and Identification
Each file has a name which describes its contents. The name
includes the following structure which uniquely identifies it among
Mars Global Surveyor Radio Science products:
YMMymmZZ.OCx
where
Y is the least significant digit of the year of the
first entry in the OCCSUM file,
MM is the two-digit month of the first entry in the
OCCSUM file.
y is the least significant digit of the year of the
last entry in the OCCSUM file,
mm is the two-digit month of the last entry in the
OCCSUM file.
ZZ is a two-character string indicating the version of
the OCCSUM file.
x indicates the resolution of the source files
"S" is for standard
"H" is for high-resolution,
Each OCCSUM file is accompanied by a detached PDS label, which is a
file in its own right. The label file associated with YMMymmZZ.OCx
has the name YMMymmZZ.LBL.
2.4. Interface Medium Characteristics
OCCSUM products are electronic files or files written to CD-WO.
2.5. Failure Protection, Detection, and Recovery Procedures
None.
2.6. End-of-File Conventions
End of file labeling conforms to standards for the medium on
which the OCCSUM file is stored.
3. Access
3.1. Programs Using the Interface
Data contained in OCCSUM files will be accessed by programs at
the home institutions of Mars Global Surveyor and other investigators.
Those programs cannot be identified here.
3.2. Synchronization Considerations
3.2.1. Timing and Sequencing Considerations
N/A
3.2.2. Effective Duration
N/A
3.2.3. Priority Interrupts
None.
3.3. Input/Output Protocols, Calling Sequences
None.
4. Detailed Interface Specifications
4.1. Structure and Organization Overview
The OCCSUM is a file generated by MGS Radio Science data
reduction and analysis software at Stanford University. It conforms
to Planetary Data System standards [4,5]. Each OCCSUM file is
accompanied by a detached PDS label.
4.2 Detached PDS Label
The detached PDS label has two parts -- a header and body.
The header contains information about the origin of the file and
its general characteristics such as record type and size. The
body is a complete bit-level definition of the OCCSUM file.
Each OCCSUM detached PDS label is constructed of ASCII
records; each record contains exactly 80 characters. The last two
characters in each record are the carriage-return (ASCII 13) and
line-feed (ASCII 10) characters.
4.2.1 Label Header
The structure of the label file header is illustrated in
Figure 4-2. An example of a complete label file is given in
Appendix A.
|====================================================================|
| |
| Figure 4-2. Label Header - Standard Keyword and Value Pairs |
| |
|====================================================================|
| | |
| PDS_VERSION_ID = PDS3 | |
| RECORD_TYPE = FIXED_LENGTH | |
| RECORD_BYTES = 324 | |
| FILE_RECORDS = nnn | |
| ^TABLE = "YMMymmZZ.OCx" | |
| INSTRUMENT_HOST_NAME = "MARS GLOBAL SURVEYOR" | |
| TARGET_NAME = "MARS" | Standard |
| INSTRUMENT_NAME = "RADIO SCIENCE SUBSYSTEM" | Keywords |
| DATA_SET_ID = "MGS-M-RSS-5-SDP-V1.0" | and |
| PRODUCT_ID = "YMMymmZZ.OCx" | Values |
| PRODUCT_RELEASE_DATE = YYYY-MM-DD | |
| DESCRIPTION = "cccccccccccccccccc" | |
| START_TIME = YYYY-MM-DDThh:mm:ss.fffZ | |
| STOP_TIME = YYYY-MM-DDThhh:mm:ss.fffZ | |
| SOFTWARE_NAME = "ccccccc;Vn.m" | |
| PRODUCT_CREATION_TIME = YYYY-MM-DDThh:mm:ss.fffZ | |
| PRODUCER_ID = "MGS RS TEAM" | |
| | |
|====================================================================|
Keyword-value pairs in Figure 4-2 are defined below:
PDS_VERSION_ID The version of the Planetary Data System for
which these data have been prepared (set to
"PDS3" by agreement between the Mars Global
Surveyor Project and PDS).
RECORD_TYPE The type of record. Set to "FIXED_LENGTH"
to indicate that all logical records have
the same length.
RECORD_BYTES The number of bytes per (fixed-length)
record. Set to 324 for initial releases
of OCCSUM files.
FILE_RECORDS The number of records in the OCCSUM file;
instance dependent.
^TABLE Name of the OCCSUM file associated with
this label. The structure of the file name
is described in Section 2.3.
INSTRUMENT_HOST_NAME Name of the spacecraft; set to
"MARS GLOBAL SURVEYOR".
TARGET_NAME Name of the planet; set to "MARS".
INSTRUMENT_NAME Name of the instrument; set to "RADIO
SCIENCE SUBSYSTEM".
DATA_SET_ID Identifier for the data set of which this
OCCSUM product is a member. Set to "MGS-M-
RSS-5-SDP-Vn.m" for the OCCSUM, where
"Vn.m" indicates the version number of the
data set, starting from "V1.0".
PRODUCT_ID A unique identifier for the product within
the data set; identical to the file name
given by the ^TABLE pointer.
PRODUCT_RELEASE_DATE = The date on which the product was released
to the Planetary Data System; entered in the
format "YYYY-MM-DD", where components are
defined in Section 1.5.4.2.
DESCRIPTION A short description of the OCCSUM product.
START_TIME The time corresponding to the first entry
in the OCCSUM file, given in the format
"YYYY-MM-DDThh:mm:ss[.fff[Z]]" where the
components are defined in Section 1.5.4.2.
STOP_TIME The time corresponding to the last entry
in the OCCSUM file, given in the format
"YYYY-MM-DDThh:mm:ss[.fff[Z]]" where the
components are defined in Section 1.5.4.2.
SOFTWARE_NAME= The name and version number of the program
creating this OCCSUM file; expressed as a
character string in the format
"PROGRAM_NAME;Vn.mm" where "PROGRAM_NAME" is
the name of the software and "n.mm" is the
version number.
PRODUCT_CREATION_TIME The time at which this OCCSUM file was
created; expressed in the format "YYYY-MM-
DDThh:mm:ss[.fff[Z]]" where the components
are defined in Section 1.5.4.2.
PRODUCER_ID The entity responsible for creation of the
RSTP product; set to "MGS RST".
4.2.2 Label Body
The body of the PDS label completely defines both the format and
the content of the OCCSUM file. An example of a complete label is
given in Appendix A.1. Since the format and content of the OCCSUM file
may vary over the course of the MGS mission, users should always refer
to the accompanying label for current specifications of the OCCSUM file.
4.3. Data File
The OCCSUM data file contains summary atmospheric measurements
from one or more MGS occultation events. The structure and content
of each OCCSUM file are defined by the accompanying detached PDS
label (see Section 4.2 and Appendix A.1). Note that the format and
content of the OCCSUM file may evolve over the course of the MGS
mission; users should always refer to the accompanying PDS label
for current format and content specifications.
Appendix A. Example OCCSUM Label
A.1 Example Label
The following is an example Occultation Summary (OCCSUM) Label.
In Appendix A.2, the corresponding data file is shown
PDS_VERSION_ID = PDS3
RECORD_TYPE = FIXED_LENGTH
RECORD_BYTES = 324
FILE_RECORDS = 45
^TABLE = "801803AA.OCS"
INSTRUMENT_HOST_NAME = "MARS GLOBAL SURVEYOR"
TARGET_NAME = "MARS"
INSTRUMENT_NAME = "RADIO SCIENCE SUBSYSTEM"
DATA_SET_ID = "MGS-M-RSS-5-SDP-V1.0"
PRODUCT_ID = "801803AA.OCS"
PRODUCT_RELEASE_DATE = 1998-11-15
DESCRIPTION = "This file contains a summary
of MGS radio occultation measurements of the neutral atmosphere
of Mars."
START_TIME = 1998-01-28T03:38:00Z
STOP_TIME = 1998-03-08T17:43:30Z
SOFTWARE_NAME = "OCS; V1.1"
PRODUCT_CREATION_TIME = 1998-10-26T17:55:23Z
PRODUCER_ID = "MGS RST"
OBJECT = TABLE
ROWS = 45
COLUMNS = 32
ROW_BYTES = 324
INTERCHANGE_FORMAT = ASCII
DESCRIPTION = "Table contains one row for each radio
science atmospheric temperature-pressure profile. Each row
includes 32 data columns (321 total bytes), 1 ASCII blank
character to pad out the record, and an ASCII carriage-return
line-feed pair at the end."
OBJECT = COLUMN
NAME = "START TIME"
COLUMN_NUMBER = 1
DATA_TYPE = TIME
START_BYTE = 1
BYTES = 23
UNIT = "N/A"
DESCRIPTION = "The Earth Receive Time at which
the first radio occultation data sample was acquired."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "STOP TIME"
COLUMN_NUMBER = 2
DATA_TYPE = TIME
START_BYTE = 25
BYTES = 23
UNIT = "N/A"
DESCRIPTION = "The Earth Receive Time at which
the last radio occultation data sample was acquired."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "OCCULTATION TIME"
COLUMN_NUMBER = 3
DATA_TYPE = TIME
START_BYTE = 49
BYTES = 23
UNIT = "N/A"
DESCRIPTION = "The time at Mars when the
geometrical ray path grazed the limb. This is computed
by subtracting the limb-to-Earth light time from the
appropriate Earth Receive Time."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "ORBIT NUMBER"
COLUMN_NUMBER = 4
DATA_TYPE = ASCII_INTEGER
START_BYTE = 73
BYTES = 5
FORMAT = "I5"
UNIT = "N/A"
DESCRIPTION = "Orbit number from which the data
were acquired; set to zero if not known."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "DSN ANTENNA NUMBER"
COLUMN_NUMBER = 5
DATA_TYPE = ASCII_INTEGER
START_BYTE = 79
BYTES = 2
FORMAT = "I2"
UNIT = "N/A"
DESCRIPTION = "Number of the DSN antenna used
to collect the data (e.g., 14, 43, 65, ...)."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "RAY PATH DIRECTION"
COLUMN_NUMBER = 6
DATA_TYPE = ASCII_REAL
START_BYTE = 82
BYTES = 6
FORMAT = "F6.1"
UNIT = "DEGREE"
DESCRIPTION = "The angle between local north
and the tangent to the ray path at the occultation point,
measured positive from local north toward local east. The
tangent to the ray path indicates the direction of signal
propagation. A signal traveling from west toward east as
it grazed the surface would have a ray-path-direction of
90 degrees."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "ANGLE FROM DIAMETRIC"
COLUMN_NUMBER = 7
DATA_TYPE = ASCII_REAL
START_BYTE = 89
BYTES = 6
FORMAT = "F6.1"
UNIT = "DEGREE"
DESCRIPTION = "Angle at which the spacecraft
rises or sets behind the planet limb, measured clockwise from
the planet radial direction as viewed from Earth. An angle-
from-diametric equal to zero indicates a diametric occultation
with motion of the ray away from the surface (e.g., occultation
egress). A value near 180 degrees is a nearly diametric ingress
occultation."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "LATITUDE AT SURFACE"
COLUMN_NUMBER = 8
DATA_TYPE = ASCII_REAL
START_BYTE = 96
BYTES = 7
FORMAT = "F7.3"
UNIT = "DEGREE"
DESCRIPTION = "Areocentric (north) latitude of
the occultation point."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "SIGMA LATITUDE"
COLUMN_NUMBER = 9
DATA_TYPE = ASCII_REAL
START_BYTE = 104
BYTES = 6
FORMAT = "F6.3"
UNIT = "DEGREE"
DESCRIPTION = "One standard deviation uncertainty
in LATITUDE AT SURFACE. Set to -9.999 if not known."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "LONGITUDE AT SURFACE"
COLUMN_NUMBER = 10
DATA_TYPE = ASCII_REAL
START_BYTE = 111
BYTES = 8
FORMAT = "F8.3"
UNIT = "DEGREE"
POSITIVE_LONGITUDE_DIRECTION = "EAST"
DESCRIPTION = "Areocentric east longitude of the
occultation point in body fixed coordinates."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "SIGMA LONGITUDE"
COLUMN_NUMBER = 11
DATA_TYPE = ASCII_REAL
START_BYTE = 120
BYTES = 6
FORMAT = "F6.3"
UNIT = "DEGREE"
DESCRIPTION = "One standard deviation uncertainty
in LONGITUDE AT SURFACE. Set to -9.999 if not known."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "SUB-SOLAR LATITUDE"
COLUMN_NUMBER = 12
DATA_TYPE = ASCII_REAL
START_BYTE = 127
BYTES = 6
FORMAT = "F6.2"
UNIT = "DEGREE"
DESCRIPTION = "Areocentric (north) latitude of
the sun at OCCULTATION TIME."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "SUB-SOLAR LONGITUDE"
COLUMN_NUMBER = 13
DATA_TYPE = ASCII_REAL
START_BYTE = 134
BYTES = 7
FORMAT = "F7.2"
UNIT = "DEGREE"
POSITIVE_LONGITUDE_DIRECTION = "EAST"
DESCRIPTION = "Areocentric east longitude of the
sun in body fixed coordinates at OCCULTATION TIME."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "SOLAR LONGITUDE"
COLUMN_NUMBER = 14
DATA_TYPE = ASCII_REAL
START_BYTE = 142
BYTES = 6
FORMAT = "F6.2"
UNIT = "DEGREE"
DESCRIPTION = "Value of the angle between the
Mars-Sun line at the time of geometric occultation and the
Mars-Sun line at the Mars vernal equinox. Measured positive
with increasing time following the vernal equinox. Sometimes
denoted L-sub-s."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "RADIUS AT SURFACE"
COLUMN_NUMBER = 15
DATA_TYPE = ASCII_REAL
START_BYTE = 149
BYTES = 8
FORMAT = "F8.0"
UNIT = "METER"
DESCRIPTION = "Radius of Mars at the occultation
point."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "SIGMA RADIUS"
COLUMN_NUMBER = 16
DATA_TYPE = ASCII_REAL
START_BYTE = 158
BYTES = 6
FORMAT = "F6.0"
UNIT = "METER"
DESCRIPTION = "One standard deviation uncertainty
in RADIUS AT SURFACE. Set to -9999. if not known."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "SURFACE PRESSURE"
COLUMN_NUMBER = 17
DATA_TYPE = ASCII_REAL
START_BYTE = 165
BYTES = 7
FORMAT = "F7.2"
UNIT = "PASCAL"
DESCRIPTION = "Atmospheric pressure at the
occultation point -- i.e., at the point defined by RADIUS AT
SURFACE, LATITUDE AT SURFACE, and LONGITUDE AT SURFACE.
Obtained by extrapolating from the lowest sample in the retrieved
atmospheric profile to the estimated RADIUS AT SURFACE."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "SIGMA SURFACE PRESSURE"
COLUMN_NUMBER = 18
DATA_TYPE = ASCII_REAL
START_BYTE = 173
BYTES = 5
FORMAT = "F5.2"
UNIT = "PASCAL"
DESCRIPTION = "One standard deviation uncertainty
in SURFACE PRESSURE. Set to -9.99 if not known."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "TEMPERATURE NEAR SURFACE"
COLUMN_NUMBER = 19
DATA_TYPE = ASCII_REAL
START_BYTE = 179
BYTES = 6
FORMAT = "F6.2"
UNIT = "KELVIN"
DESCRIPTION = "Atmospheric temperature at lowest
sample in temperature-pressure profile. Note that the height
of this sample above the surface varies among profiles. No
attempt has been made to extrapolate to surface because thermal
structure of boundary layer varies strongly with local time."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "SIGMA TEMPERATURE NEAR SURFACE"
COLUMN_NUMBER = 20
DATA_TYPE = ASCII_REAL
START_BYTE = 186
BYTES = 5
FORMAT = "F5.2"
UNIT = "KELVIN"
DESCRIPTION = "One standard deviation uncertainty
in TEMPERATURE NEAR SURFACE."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "SPACECRAFT TO LIMB DISTANCE"
COLUMN_NUMBER = 21
DATA_TYPE = ASCII_REAL
START_BYTE = 192
BYTES = 9
FORMAT = "E9.3"
UNIT = "METER"
DESCRIPTION = "Distance from spacecraft to
occultation point at time when ray path grazed planetary
surface."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "SPACECRAFT TO DSN DISTANCE"
COLUMN_NUMBER = 22
DATA_TYPE = ASCII_REAL
START_BYTE = 202
BYTES = 9
FORMAT = "E9.3"
UNIT = "METER"
DESCRIPTION = "Distance from spacecraft to DSN
receiving antenna at time when ray path grazed planetary
surface."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "LOCAL TRUE SOLAR TIME OF OCCULTATION"
COLUMN_NUMBER = 23
DATA_TYPE = ASCII_REAL
START_BYTE = 212
BYTES = 6
FORMAT = "F6.3"
UNIT = "HOUR"
DESCRIPTION = "Local true solar time (LTST) at the
time and location of the occultation measurement. LTST at the
sub-solar longitude is defined as 12 solar hours. LTST on other
meridians changes by one solar hour for each 15 degree increment
in longitude. Thus, LTST for the occultation measurement is
given by 12 + (LONGITUDE_AT_SURFACE - SUB-SOLAR_LONGITUDE)/15."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "SOLAR ZENITH ANGLE"
COLUMN_NUMBER = 24
DATA_TYPE = ASCII_REAL
START_BYTE = 219
BYTES = 6
FORMAT = "F6.2"
UNIT = "DEGREE"
DESCRIPTION = "Angle between the direction to Sun
and local vertical direction on Mars at time and location of the
occultation measurement."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "SUN-EARTH-SPACECRAFT ANGLE"
COLUMN_NUMBER = 25
DATA_TYPE = ASCII_REAL
START_BYTE = 226
BYTES = 5
FORMAT = "F5.1"
UNIT = "DEGREE"
DESCRIPTION = "Approximate angle between Sun and
spacecraft as viewed from Earth during experiment."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "DSN ELEVATION ANGLE"
COLUMN_NUMBER = 26
DATA_TYPE = ASCII_REAL
START_BYTE = 232
BYTES = 5
FORMAT = "F5.1"
UNIT = "DEGREE"
DESCRIPTION = "Approximate angle between
direction to spacecraft and local horizon at DSN receiving
antenna during experiment."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "GRAVITY FIELD MODEL"
COLUMN_NUMBER = 27
DATA_TYPE = CHARACTER
START_BYTE = 239
BYTES = 12
FORMAT = "A12"
UNIT = "N/A"
DESCRIPTION = "File name of gravity field spherical
harmonic model used in profile retrieval and calculation of
geopotential."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "GEOPOTENTIAL REFERENCE"
COLUMN_NUMBER = 28
DATA_TYPE = ASCII_REAL
START_BYTE = 253
BYTES = 9
FORMAT = "F9.0"
UNIT = "METER SQUARED PER SECOND SQUARED"
DESCRIPTION = "Reference value for geopotential.
Reference geoid has mean equatorial radius of 3396 kilometers."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "PCK FILE NAME"
COLUMN_NUMBER = 29
DATA_TYPE = CHARACTER
START_BYTE = 264
BYTES = 12
FORMAT = "A12"
UNIT = "N/A"
DESCRIPTION = "File name of the NAIF Planetary
Constants File used in this retrieval and calculation (name
of the PCK file as stored in the MGS RST data system)."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "TRAJECTORY FILE NAME"
COLUMN_NUMBER = 30
DATA_TYPE = CHARACTER
START_BYTE = 279
BYTES = 12
FORMAT = "A12"
UNIT = "N/A"
DESCRIPTION = "File name of the spacecraft and
planetary ephemeris file used in this retrieval and calculation
(name of the file as stored in the MGS RST data system)."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "SPACECRAFT ATTITUDE FILE NAME"
COLUMN_NUMBER = 31
DATA_TYPE = CHARACTER
START_BYTE = 294
BYTES = 12
FORMAT = "A12"
UNIT = "N/A"
DESCRIPTION = "File name of the spacecraft
attitude file used in this retrieval and calculation (name
of the file as stored in the MGS RST data system). Left
blank if not known or no attitude file was used."
END_OBJECT = COLUMN
OBJECT = COLUMN
NAME = "TPS FILE NAME"
COLUMN_NUMBER = 32
DATA_TYPE = CHARACTER
START_BYTE = 309
BYTES = 12
FORMAT = "A12"
UNIT = "N/A"
DESCRIPTION = "File name of complete temperature-
pressure profile from which these parameters derive."
END_OBJECT = COLUMN
END_OBJECT = TABLE
END
A.2 Example Data File
An example OCCSUM data file corresponding to the label example
in Section A.1 is shown below. Lines are wrapped after column 70.
1998-01-28T03:38:00.000,1998-01-28T03:51:00.000,1998-01-28T03:30:14.32
4, 0,43, 117.7, 103.7, 29.213,-9.999, 56.774,-9.999,-25.05, 150.87
,264.08,3392207.,-9999., 594.23, 7.25,198.14, 1.85,6.129E+06,3.325E+11
, 5.727,105.35, 24.2, 66.4,"GGM50A02.SHA",12652778.,"PCK3223A.TPC","80
27036A.SPK"," ","8028D38A.TPS"
1998-01-28T23:18:18.000,1998-01-28T23:33:00.000,1998-01-28T23:12:08.41
7, 0,15, 116.8, 106.2, 25.280,-9.999, 127.191,-9.999,-25.07, 223.44
,264.60,3388345.,-9999., 959.36, 9.18,196.17, 0.22,6.378E+06,3.329E+11
, 5.583,105.72, 24.0, 36.1,"GGM50A02.SHA",12652778.,"PCK3223A.TPC","80
28037A.SPK"," ","8028X18A.TPS"
1998-01-31T09:23:00.000,1998-01-31T09:37:00.000,1998-01-31T09:15:42.97
9, 0,45, 115.2, 113.2, 14.687,-9.999, 355.058,-9.999,-25.13, 96.27
,266.13,3392617.,-9999., 731.19, 5.75,199.10, 1.11,7.015E+06,3.340E+11
, 5.253,106.20, 23.5, 9.4,"GGM50A02.SHA",12652778.,"PCK3223A.TPC","80
30039A.SPK"," ","8031J23A.TPS"
1998-02-01T04:25:48.000,1998-02-01T04:40:00.000,1998-02-01T04:18:50.07
1, 0,45, 115.0, 115.3, 11.524,-9.999, 75.659,-9.999,-25.14, 178.27
,266.63,3395121.,-9999., 645.67, 3.47,198.90, 0.49,7.196E+06,3.344E+11
, 5.159,106.21, 23.3, 62.9,"GGM50A02.SHA",12652778.,"PCK3223A.TPC","80
31040A.SPK"," ","8032E25A.TPS"
1998-02-01T23:24:48.000,1998-02-01T23:39:00.000,1998-02-01T23:17:44.76
6, 0,15, 114.8, 117.2, 8.607,-9.999, 157.430,-9.999,-25.16, 261.30
,267.13,3392976.,-9999., 751.63, 3.41,214.06, 0.37,7.354E+06,3.347E+11
, 5.076,106.17, 23.1, 35.9,"GGM50A02.SHA",12652778.,"PCK3223A.TPC","80
32051A.SPK"," ","8032X24A.TPS"
1998-02-02T18:15:44.000,1998-02-02T18:30:00.000,1998-02-02T18:08:27.62
1, 0,15, 114.7, 119.3, 5.553,-9.999, 241.208,-9.999,-25.17, 346.32
,267.62,3400878.,-9999., 435.47, 3.68,201.60, 0.65,7.524E+06,3.351E+11
, 4.993,106.07, 22.9, 27.3,"GGM50A02.SHA",12652778.,"PCK3223A.TPC","80
33042A.SPK"," ","8033S15A.TPS"
1998-02-05T02:10:15.000,1998-02-05T02:20:00.000,1998-02-05T01:59:06.26
4, 0,45, 114.9, 124.6, -2.173,-9.999, 143.091,-9.999,-25.19, 251.47
,269.09,3393935.,-9999., 740.23, 4.94,205.71, 0.61,7.906E+06,3.362E+11
, 4.775,105.58, 22.4, 57.2,"GGM50A02.SHA",12652778.,"PCK3223A.TPC","80
35043A.SPK"," ","8036C10A.TPS"
1998-02-05T20:31:00.000,1998-02-05T20:44:00.000,1998-02-05T20:22:25.47
6, 0,15, 115.0, 126.5, -4.770,-9.999, 233.754,-9.999,-25.19, 343.15
,269.57,3400722.,-9999., 434.47, 2.76,202.11, 0.64,8.038E+06,3.365E+11
, 4.707,105.35, 22.2, 44.3,"GGM50A02.SHA",12652778.,"PCK3223A.TPC","80
36044A.SPK"," ","8036U31A.TPS"
1998-02-07T08:56:58.000,1998-02-07T09:11:00.000,1998-02-07T08:49:18.10
0, 0,45, 115.5, 129.7, -9.407,-9.999, 59.853,-9.999,-25.19, 171.32
,270.53,3398288.,-9999., 484.26, 5.19,213.20, 1.52,8.240E+06,3.372E+11
, 4.569,104.85, 21.9, 12.1,"GGM50A02.SHA",12652778.,"PCK3223A.TPC","80
37046A.SPK"," ","8038I56A.TPS"
1998-02-08T03:01:58.000,1998-02-08T03:16:00.000,1998-02-08T02:54:18.94
4, 0,45, 115.8, 131.3,-11.669,-9.999, 154.970,-9.999,-25.19, 267.45
,271.00,3395332.,-9999., 596.09, 3.70,212.43, 0.51,8.332E+06,3.375E+11
, 4.501,104.57, 21.7, 62.3,"GGM50A02.SHA",12652778.,"PCK3223A.TPC","80
38046A.SPK"," ","8039D01A.TPS"
1998-02-09T14:49:21.000,1998-02-09T15:03:00.000,1998-02-09T14:41:39.04
0, 0,65, 116.4, 134.4,-15.999,-9.999, 350.791,-9.999,-25.18, 105.23
,271.94,3393160.,-9999., 674.22, 3.52,216.04, 0.76,8.505E+06,3.382E+11
, 4.371,103.98, 21.4, 39.5,"GGM50A02.SHA",12652778.,"PCK3223A.TPC","80
39047A.SPK"," ","8040O49A.TPS"
1998-02-10T08:30:10.000,1998-02-10T08:43:00.000,1998-02-10T08:21:52.46
7, 0,45, 116.8, 136.0,-18.164,-9.999, 91.887,-9.999,-25.17, 207.39
,272.40,3396808.,-9999., 494.01, 4.15,214.83, 0.92,8.585E+06,3.386E+11
, 4.300,103.65, 21.2, 16.6,"GGM50A02.SHA",12652778.,"PCK3223A.TPC","80
40048A.SPK"," ","8041I30A.TPS"
1998-02-11T19:26:19.000,1998-02-11T19:40:00.000,1998-02-11T19:18:24.35
9, 0,15, 117.7, 139.0,-22.254,-9.999, 299.928,-9.999,-25.15, 57.53
,273.31,3396699.,-9999., 447.84, 2.58,221.01, 0.80,8.714E+06,3.392E+11
, 4.160,102.99, 20.9, 40.9,"GGM50A02.SHA",12652778.,"PCK3223A.TPC","80
42050A.SPK"," ","8042T26A.TPS"
1998-02-12T12:40:17.000,1998-02-12T12:54:00.000,1998-02-12T12:32:22.54
4, 0,65, 118.2, 140.4,-24.170,-9.999, 47.487,-9.999,-25.13, 166.07
,273.76,3394642.,-9999., 518.61, 3.16,225.60, 0.71,8.776E+06,3.395E+11
, 4.094,102.65, 20.7, 40.8,"GGM50A02.SHA",12652778.,"PCK3223A.TPC","80
42050B.SPK"," ","8043M40A.TPS"
1998-02-13T22:44:30.000,1998-02-13T22:58:00.000,1998-02-13T22:36:28.46
4, 0,15, 119.4, 143.3,-27.957,-9.999, 268.203,-9.999,-25.10, 28.96
,274.65,3395817.,-9999., 439.27, 3.64,222.55, 1.29,8.888E+06,3.402E+11
, 3.950,101.96, 20.4, 42.6,"GGM50A02.SHA",12652778.,"PCK3223A.TPC","80
44052A.SPK"," ","8044W44A.TPS"
1998-02-14T15:37:05.000,1998-02-14T15:51:00.000,1998-02-14T15:29:04.20
9, 0,65, 120.0, 144.6,-29.722,-9.999, 20.909,-9.999,-25.09, 142.70
,275.09,3393054.,-9999., 516.30, 3.37,218.11, 0.54,8.935E+06,3.405E+11
, 3.881,101.62, 20.2, 36.0,"GGM50A02.SHA",12652778.,"PCK3223A.TPC","80
45053A.SPK"," ","8045P37A.TPS"
1998-02-15T08:22:34.000,1998-02-15T08:36:00.000,1998-02-15T08:14:30.39
3, 0,45, 120.7, 146.0,-31.514,-9.999, 135.242,-9.999,-25.07, 258.18
,275.53,3393263.,-9999., 496.81, 2.62,224.07, 0.60,8.980E+06,3.408E+11
, 3.804,101.27, 20.1, 16.1,"GGM50A02.SHA",12652778.,"PCK3223A.TPC","80
45053B.SPK"," ","8046I22A.TPS"
1998-02-16T00:58:50.000,1998-02-16T01:12:00.000,1998-02-16T00:50:42.44
3, 0,15, 121.4, 147.3,-33.228,-9.999, 251.841,-9.999,-25.05, 15.91
,275.96,3395905.,-9999., 383.00, 2.09,224.87, 0.65,9.026E+06,3.411E+11
, 3.729,100.91, 19.9, 21.8,"GGM50A02.SHA",12652778.,"PCK3223A.TPC","80
46064A.SPK"," ","8047A58A.TPS"
1998-02-16T17:29:26.000,1998-02-16T17:43:00.000,1998-02-16T17:21:19.33
7, 0,15, 122.1, 148.6,-34.850,-9.999, 9.821,-9.999,-25.02, 135.00
,276.39,3391397.,-9999., 520.59, 4.87,225.83, 1.18,9.059E+06,3.414E+11
, 3.655,100.58, 19.7, 24.7,"GGM50A02.SHA",12652778.,"PCK3223A.TPC","80
47055A.SPK"," ","8047R29A.TPS"
1998-02-17T09:55:10.000,1998-02-17T10:07:00.000,1998-02-17T09:45:41.82
5, 0,65, 122.9, 149.9,-36.475,-9.999, 129.216,-9.999,-25.00, 255.60
,276.81,3390712.,-9999., 539.87, 3.56,224.17, 0.94,9.095E+06,3.417E+11
, 3.575,100.23, 19.6, 21.8,"GGM50A02.SHA",12652778.,"PCK3223A.TPC","80
47055B.SPK"," ","8048J55A.TPS"
1998-02-18T02:15:50.000,1998-02-18T02:26:00.000,1998-02-18T02:04:28.00
7, 0,45, 123.7, 151.2,-38.062,-9.999, 249.954,-9.999,-24.98, 17.56
,277.24,3392195.,-9999., 463.22, 4.01,227.86, 0.75,9.133E+06,3.420E+11
, 3.493, 99.88, 19.4, 56.1,"GGM50A02.SHA",12652778.,"PCK3223A.TPC","80
48056A.SPK"," ","8049C15A.TPS"
1998-02-18T18:30:35.000,1998-02-18T18:40:32.000,1998-02-18T18:18:34.75
5, 0,25, 124.6, 152.4,-39.608,-9.999, 11.826,-9.999,-24.95, 140.66
,277.66,3391011.,-9999., 472.39, 4.04,234.99, 0.51,9.159E+06,3.423E+11
, 3.411, 99.54, 19.3, 35.3,"GGM50A02.SHA",12652778.,"PCK3223A.TPC","80
49056A.SPK"," ","8049S30A.TPS"
1998-02-19T10:37:00.000,1998-02-19T10:48:20.000,1998-02-19T10:27:18.54
0, 0,54, 125.6, 153.6,-41.136,-9.999, 134.880,-9.999,-24.93, 265.07
,278.08,3390526.,-9999., 486.23, 3.16,232.53, 0.86,9.185E+06,3.426E+11
, 3.321, 99.19, 19.1, 29.2,"GGM50A02.SHA",12652778.,"PCK3223A.TPC","80
49057A.SPK"," ","8050K37A.TPS"
1998-02-20T02:39:50.000,1998-02-20T02:52:20.000,1998-02-20T02:31:23.64
0, 0,45, 126.6, 154.9,-42.585,-9.999, 259.070,-9.999,-24.90, 30.60
,278.50,3389724.,-9999., 493.31, 4.98,229.65, 0.85,9.211E+06,3.429E+11
, 3.231, 98.85, 19.0, 58.1,"GGM50A02.SHA",12652778.,"PCK3223A.TPC","80
50057A.SPK"," ","8051C39A.TPS"
1998-02-21T10:31:40.000,1998-02-21T10:44:10.000,1998-02-21T10:23:12.16
4, 0,54, 128.8, 157.3,-45.442,-9.999, 151.271,-9.999,-24.84, 285.65
,279.32,3388666.,-9999., 498.54, 2.86,234.94, 0.68,9.245E+06,3.435E+11
, 3.041, 98.18, 18.7, 29.4,"GGM50A02.SHA",12652778.,"PCK3223A.TPC","80
51059A.SPK"," ","8052K31A.TPS"
1998-02-22T02:13:05.000,1998-02-22T02:25:35.000,1998-02-22T02:04:34.05
9, 0,45, 130.0, 158.5,-46.801,-9.999, 280.778,-9.999,-24.80, 56.71
,279.73,3388780.,-9999., 475.04, 4.53,234.39, 1.03,9.256E+06,3.438E+11
, 2.938, 97.84, 18.5, 55.4,"GGM50A02.SHA",12652778.,"PCK3223A.TPC","80
52059A.SPK"," ","8053C13A.TPS"
1998-02-23T09:22:11.000,1998-02-23T09:36:00.000,1998-02-23T09:13:48.95
0, 0,54, 132.5, 160.8,-49.387,-9.999, 183.011,-9.999,-24.74, 322.11
,280.54,3387999.,-9999., 472.01, 3.58,234.89, 0.97,9.279E+06,3.444E+11
, 2.727, 97.19, 18.2, 18.7,"GGM50A02.SHA",12652778.,"PCK3223A.TPC","80
53060A.SPK"," ","8054J22A.TPS"
1998-02-24T16:09:47.000,1998-02-24T16:23:00.000,1998-02-24T16:01:25.46
5, 0,54, 135.4, 163.1,-51.780,-9.999, 90.250,-9.999,-24.67, 232.76
,281.33,3384171.,-9999., 638.88, 3.86,231.92, 0.88,9.282E+06,3.449E+11
, 2.499, 96.55, 17.9, 32.7,"GGM50A02.SHA",12652778.,"PCK3223A.TPC","80
55062A.SPK"," ","8055Q09A.TPS"
1998-02-25T07:24:33.000,1998-02-25T07:38:00.000,1998-02-25T07:16:31.09
7, 0,45, 136.9, 164.2,-52.915,-9.999, 225.879,-9.999,-24.63, 10.21
,281.73,3387097.,-9999., 470.20, 2.85,235.60, 0.59,9.283E+06,3.452E+11
, 2.378, 96.24, 17.8, 23.7,"GGM50A02.SHA",12652778.,"PCK3223A.TPC","80
55062B.SPK"," ","8056H24A.TPS"
1998-02-26T13:41:15.000,1998-02-26T13:57:00.000,1998-02-26T13:32:34.55
1, 0,65, 140.3, 166.3,-55.045,-9.999, 140.314,-9.999,-24.55, 288.54
,282.51,3385041.,-9999., 543.37, 4.57,232.56, 0.80,9.279E+06,3.458E+11
, 2.119, 95.63, 17.5, 47.0,"GGM50A02.SHA",12652778.,"PCK3223A.TPC","80
56063B.SPK"," ","8057N41A.TPS"
1998-02-27T04:41:15.000,1998-02-27T04:59:00.000,1998-02-27T04:32:03.39
7, 0,34, 142.1, 167.4,-56.037,-9.999, 279.481,-9.999,-24.51, 69.78
,282.89,3383991.,-9999., 567.84, 4.77,234.07, 0.66,9.277E+06,3.460E+11
, 1.980, 95.34, 17.4, 51.1,"GGM50A02.SHA",12652778.,"PCK3223A.TPC","80
57064A.SPK"," ","8058E41A.TPS"
1998-02-27T19:31:27.000,1998-02-27T19:50:00.000,1998-02-27T19:24:58.47
1, 0,15, 144.0, 168.5,-56.994,-9.999, 60.178,-9.999,-24.47, 212.61
,283.28,3384552.,-9999., 540.79, 2.70,235.69, 0.44,9.272E+06,3.463E+11
, 1.838, 95.04, 17.2, 48.1,"GGM50A02.SHA",12652778.,"PCK3223A.TPC","80
58065B.SPK"," ","8058T31A.TPS"
1998-03-01T01:06:15.000,1998-03-01T01:24:00.000,1998-03-01T00:59:41.54
2, 0,15, 148.0, 170.6,-58.717,-9.999, 344.074,-9.999,-24.39, 140.99
,284.04,3384678.,-9999., 495.05, 5.00,235.53, 1.44,9.251E+06,3.468E+11
, 1.539, 94.48, 17.0, 20.0,"GGM50A02.SHA",12652778.,"PCK3223A.TPC","80
59066A.SPK"," ","8060B06A.TPS"
1998-03-02T06:22:35.000,1998-03-02T06:41:00.000,1998-03-02T06:15:59.27
4, 0,45, 152.4, 172.6,-60.230,-9.999, 271.984,-9.999,-24.30, 73.85
,284.79,3383752.,-9999., 525.26, 3.47,230.01, 0.92,9.233E+06,3.474E+11
, 1.209, 93.92, 16.7, 33.3,"GGM50A02.SHA",12652778.,"PCK3223A.TPC","80
60067B.SPK"," ","8061G22A.TPS"
1998-03-02T20:51:50.000,1998-03-02T21:10:00.000,1998-03-02T20:45:16.30
7, 0,15, 154.7, 173.6,-60.901,-9.999, 58.039,-9.999,-24.26, 222.43
,285.16,3383609.,-9999., 531.40, 2.94,233.39, 0.62,9.218E+06,3.476E+11
, 1.041, 93.66, 16.5, 53.6,"GGM50A02.SHA",12652778.,"PCK3223A.TPC","80
61068A.SPK"," ","8061U51A.TPS"
1998-03-03T11:17:15.000,1998-03-03T11:33:30.000,1998-03-03T11:10:35.10
7, 0,54, 157.2, 174.6,-61.521,-9.999, 204.955,-9.999,-24.21, 11.98
,285.53,3384405.,-9999., 477.17, 2.85,240.25, 0.67,9.201E+06,3.479E+11
, 0.865, 93.39, 16.4, 40.3,"GGM50A02.SHA",12652778.,"PCK3223A.TPC","80
61068B.SPK"," ","8062L17A.TPS"
1998-03-04T01:40:15.000,1998-03-04T01:57:00.000,1998-03-04T01:32:13.64
1, 0,15, 159.6, 175.6,-62.056,-9.999, 352.733,-9.999,-24.16, 162.42
,285.90,3384252.,-9999., 487.39, 3.82,240.68, 0.93,9.183E+06,3.481E+11
, 0.688, 93.14, 16.3, 13.5,"GGM50A02.SHA",12652778.,"PCK3223A.TPC","80
62069A.SPK"," ","8063B40A.TPS"
1998-03-04T15:55:45.000,1998-03-04T16:14:00.000,1998-03-04T15:48:52.79
3, 0,65, 162.2, 176.6,-62.539,-9.999, 141.588,-9.999,-24.12, 314.07
,286.27,3383668.,-9999., 511.08, 3.13,237.65, 0.59,9.162E+06,3.484E+11
, 0.501, 92.89, 16.1, 35.4,"GGM50A02.SHA",12652778.,"PCK3223A.TPC","80
63069A.SPK"," ","8063P55A.TPS"
1998-03-05T06:07:10.000,1998-03-05T06:23:00.000,1998-03-05T05:58:06.28
0, 0,34, 164.8, 177.6,-62.965,-9.999, 292.186,-9.999,-24.07, 107.53
,286.63,3383559.,-9999., 500.08, 2.90,238.74, 0.49,9.138E+06,3.486E+11
, 0.311, 92.65, 16.0, 35.2,"GGM50A02.SHA",12652778.,"PCK3223A.TPC","80
63070A.SPK"," ","8064G07A.TPS"
1998-03-05T20:06:11.000,1998-03-05T20:24:00.000,1998-03-05T19:59:32.21
4, 0,25, 167.5, 178.5,-63.320,-9.999, 84.708,-9.999,-24.02, 262.88
,286.99,3383265.,-9999., 525.08, 3.12,236.05, 0.90,9.117E+06,3.489E+11
, 0.122, 92.41, 15.9, 53.2,"GGM50A02.SHA",12652778.,"PCK3223A.TPC","80
64070A.SPK"," ","8064U06A.TPS"
1998-03-06T10:03:25.000,1998-03-06T10:22:00.000,1998-03-06T09:57:54.32
8, 0,65, 170.1, 179.4,-63.608,-9.999, 237.963,-9.999,-23.97, 58.98
,287.35,3383757.,-9999., 489.41, 4.45,238.16, 1.34,9.104E+06,3.491E+11
,23.932, 92.18, 15.7, 31.0,"GGM50A02.SHA",12652778.,"PCK3223A.TPC","80
64071A.SPK"," ","8065K03A.TPS"
1998-03-06T23:59:21.000,1998-03-07T00:18:00.000,1998-03-06T23:52:41.35
5, 0,15, 172.8,-179.6,-63.839,-9.999, 32.011,-9.999,-23.92, 215.95
,287.70,3383283.,-9999., 509.94, 5.16,237.45, 0.62,9.084E+06,3.494E+11
,23.738, 91.95, 15.6, 32.7,"GGM50A02.SHA",12652778.,"PCK3223A.TPC","80
65072A.SPK"," ","8065X59A.TPS"
1998-03-07T13:50:34.000,1998-03-07T14:09:00.000,1998-03-07T13:44:07.45
0, 0,65, 175.5,-178.7,-64.015,-9.999, 186.900,-9.999,-23.87, 13.73
,288.06,3383508.,-9999., 494.63, 4.88,239.42, 0.60,9.057E+06,3.496E+11
,23.545, 91.73, 15.5, 49.1,"GGM50A02.SHA",12652778.,"PCK3223A.TPC","80
66072A.SPK"," ","8066N50A.TPS"
1998-03-08T03:39:38.000,1998-03-08T03:56:57.000,1998-03-08T03:32:55.96
8, 0,45, 178.2,-177.8,-64.109,-9.999, 342.435,-9.999,-23.82, 172.15
,288.41,3383417.,-9999., 494.11, 2.99,236.76, 0.86,9.032E+06,3.498E+11
,23.352, 91.51, 15.3, 53.1,"GGM50A02.SHA",12652778.,"PCK3223A.TPC","80
66073A.SPK"," ","8067D3JA.TPS"
1998-03-08T17:25:17.000,1998-03-08T17:43:30.000,1998-03-08T17:19:23.25
9, 0,65,-179.1,-176.9,-64.149,-9.999, 138.530,-9.999,-23.77, 331.15
,288.76,3383204.,-9999., 515.37, 5.32,241.66, 0.76,9.008E+06,3.501E+11
,23.159, 91.31, 15.2, 20.3,"GGM50A02.SHA",12652778.,"PCK3223A.TPC","80
67084A.SPK"," ","8067R25A.TPS"