| DATA_SET_DESCRIPTION |
Data Set Overview
=================
This data set contains Raw data taken by New Horizons
Long Range Reconnaissance Imager
instrument during the JUPITER mission phase.
Science observations for the Jupiter Phase began with
observations of Jupiter on 2007 January 8 and ended on 2007
March 7 with observations of Himalia, a Jovian irregular
satellite. LORRI acquired extensive observations of the Jovian
system during this time. Images of the Jovian atmosphere and
clouds included full disk rotation movies, as well as resolved
images of selected features like the Great Red Spot and the
Little Red Spot. An imaging campaign was executed to observe the
Jovian ring system and associated small satellites. Observing
campaigns were also performed to image each of the Galilean
satellites, but with particular attention to Io under both
sunlit and eclipse conditions, and with eclipse observations of
both Europa and Ganymede. Images were also acquired of the small
irregular satellites Elara and Himalia. On 2007 January 10,
LORRI observed the Jovian irregular satellite Callirrhoe as part
of an Optical Navigation test of relative control mode (RCM),
which is a special guidance and control mode to be used for the
initial acquisition of a KBO, if an extended mission is
approved. On 2007 February 21 LORRI executed a mosaic centered
on Jupiter to obtain scattered light data. LORRI took a series
of images on 2007 February 28 while the spacecraft was scanned
across Jupiter's terminator, in an attempt to acquire in-flight
flat field measurements.
Every observation provided in this data set was taken as a part of a
particular sequence. A list of these sequences follows:
Sequence IDs & start times (end times are the start times
of the following Sequence IDs) for the LORRI instrument
during the JUPITER phase of the New Horizons Mission
=========================================================
Sequence ID: JELO_JOBSATM01
Start UTC: 2007-01-08T21:42:00
Description: JUPITER; Jupiter images - observatory phase; LORRI - 11
hours a day
Sequence ID: JELO_JOBSATM02
Start UTC: 2007-01-09T17:42:00
Description: JUPITER; Jupiter images - observatory phase; LORRI - 11
hours a day
Sequence ID: JELO_RLORCAL01
Start UTC: 2007-01-10T04:45:00
Description: CALLIRRHOE; KBO OpNav using RCM; Timing from -6 to -6.5
days,
Sequence ID: JELO_JOBSATM03
Start UTC: 2007-01-14T17:42:00
Description: JUPITER; Jupiter images - observatory phase; LORRI - 11
hours a day
Sequence ID: JELO_JOBSATM04
Start UTC: 2007-01-15T13:42:00
Description: JUPITER; Jupiter images - observatory phase; LORRI - 11
hours a day
Sequence ID: JELO_JKODAK01
Start UTC: 2007-01-17T01:41:00
Description: IO; Double Shadow Transit; Timing from -6 to -6.5 days,
Sequence ID: JELO_JOBSATM05
Start UTC: 2007-01-20T23:42:00
Description: JUPITER; Jupiter images - observatory phase; LORRI - 11
hours a day
Sequence ID: JELO_JOBSATM06
Start UTC: 2007-01-21T19:42:00
Description: JUPITER; Jupiter images - observatory phase; LORRI - 11
hours a day
Sequence ID: JELO_JKODAK02
Start UTC: 2007-01-24T04:41:00
Description: JUPITER; Double Shadow Transit; Timing from -6 to -6.5
days,
Sequence ID: JELO_JKODAK03
Start UTC: 2007-02-10T13:40:00
Description: JUPITER; Full disk at max resolution; Timing from -6 to
-6.5 days,
Sequence ID: JELO_JLORGHOST01
Start UTC: 2007-02-21T04:45:00
Description: JUPITER; Ghost test; Timing from -6 to -6.5 days,
Sequence ID: JELO_ISUNMON01
Start UTC: 2007-02-24T00:40:00
Description: IO; Approach monitoring, Pele on limb; 02/23/07 05:42 -
02/23/07 06:12
Sequence ID: JELO_ISUNMON02
Start UTC: 2007-02-24T05:00:00
Description: IO; Approach monitoring ; Timing flexible
Sequence ID: JELO_RSATSRCH01
Start UTC: 2007-02-24T05:30:00
Description: ANSA; Jupiter ring - search for embedded moons; Timing
from -6 to -6.5 days,
Sequence ID: JELO_ISUNMON03
Start UTC: 2007-02-24T13:50:00
Description: IO; Approach monitoring ; Timing flexible
Sequence ID: JELO_RPHASE01
Start UTC: 2007-02-25T02:30:00
Description: ANSA; Jupiter ring - phase curve; Timing from -6 to -6.5
days,
Sequence ID: JELO_ISUNMON05
Start UTC: 2007-02-25T05:00:00
Description: IO; Approach monitoring ; Timing flexible
Sequence ID: JELO_ISUNMON06
Start UTC: 2007-02-25T08:30:00
Description: IO; Approach monitoring ; Timing flexible
Sequence ID: JELO_GECLIPSE01
Start UTC: 2007-02-25T09:00:00
Description: GANYMEDE; Eclipse; 02/25/07 09:35 Need to know how the
data taking is spread through the eclipse period.
Assume for now that this one and the next one can be
intermixed with potentially additional slews between Io
and Europa
Sequence ID: JELO_RPHASE02
Start UTC: 2007-02-25T13:05:00
Description: ANSA; Jupiter ring - phase curve; Timing from -6 to -6.5
days,
Sequence ID: JELO_ISUNMON07
Start UTC: 2007-02-25T14:55:00
Description: IO; Approach monitoring ; Timing flexible
Sequence ID: JELO_CCOMP01
Start UTC: 2007-02-25T17:33:00
Description: CALLISTO; Spectrum vs. phase; 02/25/07 12:30 - 02/26/07
05:00
Sequence ID: JELO_ETERM01
Start UTC: 2007-02-25T18:05:00
Description: EUROPA; Term Topography; 02/25/07 17:45 - 02/25/07 18:15
Sequence ID: JELO_ECOMP01
Start UTC: 2007-02-25T18:35:00
Description: EUROPA; Anti-Jupiter side composition; 2/25/2007 12:00
- 2/26/07 08:00
Sequence ID: JELO_IECLIPSE01
Start UTC: 2007-02-25T19:10:00
Description: IO; Io Eclipse; 02/25/07 19:34 - 02/25/07 19:34
Sequence ID: JELO_RSATSRCH02
Start UTC: 2007-02-25T20:44:00
Description: ANSA; Jupiter ring - search for embedded moons; Timing -
from -1.5 to -2.5 days
Sequence ID: JELO_RSATSRCH03
Start UTC: 2007-02-25T23:10:00
Description: ANSA; Jupiter ring - search for embedded moons; Timing -
from -1.5 to -2.5 days
Sequence ID: JELO_IOCC01
Start UTC: 2007-02-26T04:05:00
Description: IO; Stellar occultation; 3/4/2007 7:40:00 PM. Could be
combined with the 'auroral response to magnetosphere'
observation.
Sequence ID: JELO_RSATSRCH04
Start UTC: 2007-02-26T04:30:00
Description: ANSA; Jupiter ring - search for embedded moons; Timing -
from -1.5 to -2.5 days
Sequence ID: JELO_GCOMP02
Start UTC: 2007-02-26T08:09:00
Description: GANYMEDE; Gap Fill composition; 02/26/07 00:00 -
02/26/07 17:00
Sequence ID: JELO_ISUNMON09
Start UTC: 2007-02-26T08:40:00
Description: IO; Approach monitoring ; Timing flexible
Sequence ID: JELO_JLRSPOT01
Start UTC: 2007-02-26T17:35:00
Description: JUPITER; Little Red Spot near limb
Sequence ID: JELO_IHIRESIR01
Start UTC: 2007-02-26T18:25:00
Description: IO; Hi-res coverage, composition; Timing flexible
Sequence ID: JELO_ECOMP02
Start UTC: 2007-02-26T18:55:00
Description: EUROPA; Trailng side compostion; 02/26/07 13:00 -
02/27/07 00:00
Sequence ID: JELO_IHIRES01
Start UTC: 2007-02-26T20:52:00
Description: IO; Hi-res coverage, Pele on limb; 02/26/07 19:52 -
02/26/07 21:52
Sequence ID: JELO_RPHASE03
Start UTC: 2007-02-26T23:05:00
Description: ANSA; Jupiter ring - phase curve; Timing from -6 to -6.5
days,
Sequence ID: JELO_IHIRES02
Start UTC: 2007-02-27T01:05:00
Description: IO; Hi-res coverage; Timing flexible
Sequence ID: JELO_ETERM03
Start UTC: 2007-02-27T02:30:00
Description: EUROPA; Term Topography; 02/27/07 02:15 - 02/27/07 02:45
Sequence ID: JELO_JLRSPOT02
Start UTC: 2007-02-27T03:10:00
Description: JUPITER; Little Red Spot near limb
Sequence ID: JELO_LPHASE01
Start UTC: 2007-02-27T04:00:00
Description: ELARA; Irregular satellites, phase coverage;
Placeholder: details not yet worked out
Sequence ID: JELO_CCOMP02
Start UTC: 2007-02-27T04:50:00
Description: CALLISTO; Spectrum vs. phase; 02/26/07 23:00 - 02/27/07
12:15
Sequence ID: JELO_IHIRESIR02
Start UTC: 2007-02-27T05:25:00
Description: IO; Hi-res coverage, composition; Timing flexible
Sequence ID: JELO_ETERM04
Start UTC: 2007-02-27T07:15:00
Description: EUROPA; Term Topography; 02/27/07 06:45 - 02/27/07 07:15
Sequence ID: JELO_HPHASE01
Start UTC: 2007-02-27T09:00:00
Description: HIMALIA; Irregular satellites, phase coverage;
Placeholder: details not yet worked out
Sequence ID: JELO_IHIRES03
Start UTC: 2007-02-27T09:15:00
Description: IO; Hi-res coverage; Timing flexible
Sequence ID: JELO_GBEST01
Start UTC: 2007-02-27T09:45:00
Description: GANYMEDE; Best resolution; 02/27/07 11:15 - 02/27/07
19:30
Sequence ID: JELO_EECLIPSE01
Start UTC: 2007-02-27T10:24:00
Description: EUROPA; Eclipse; 02/27/07 10:36 Need to know how the
data taking is spread through the eclipse period.
Assume for now that this one and the next one can be
intermixed with potentially additional slews between Io
and Europa
Sequence ID: JELO_IECLIPSE03
Start UTC: 2007-02-27T13:46:00
Description: IO; Io Eclipse; 2/27/07 14:10 Target so Alice and LEISA
integrations can be done with the same pointing.
Sequence ID: JELO_JSTORM03
Start UTC: 2007-02-27T16:05:00
Description: FJUPITER; Storm Evolution Experiment
Sequence ID: JELO_ETERM05
Start UTC: 2007-02-28T01:00:00
Description: EUROPA; Term Topography; 02/27/07 21:15 - 02/27/07 21:45
Sequence ID: JELO_EBEST01
Start UTC: 2007-02-28T01:13:00
Description: EUROPA; Best resolution ; 02/27/07 14:00 - 02/28/07
03:30
Sequence ID: JELO_CBEST01
Start UTC: 2007-02-28T03:10:00
Description: CALLISTO; Spectrum vs. phase (best res.); 02/27/07 16:15
- 02/28/07 03:00
Sequence ID: JELO_IHIRES04
Start UTC: 2007-02-28T03:50:00
Description: IO; Hi-res coverage; Timing flexible
Sequence ID: JELO_IHIRESIR03
Start UTC: 2007-02-28T04:30:00
Description: IO; Hi-res coverage, composition; Timing flexible
Sequence ID: JELO_JLORRICAL03
Start UTC: 2007-02-28T08:00:00
Description: JUPITER; LORRI Flat Field - epoch 3
Sequence ID: JELO_RBEST01
Start UTC: 2007-02-28T09:45:00
Description: ANSA; Jupiter ring - best portrait; Andrastea at ring
ansa
Sequence ID: JELO_IHIRES05
Start UTC: 2007-02-28T11:00:00
Description: IO; Hi-res coverage- Prometheus on limb; Timing flexible
Sequence ID: JELO_EKODAK01
Start UTC: 2007-02-28T11:48:00
Description: EUROPA; Europa emerging from Jupiter occn; Timing from
-6 to -6.5 days,
Sequence ID: JELO_JSTORM04
Start UTC: 2007-02-28T12:25:00
Description: FJUPITER; Storm Evolution Experiment
Sequence ID: JELO_ISHINE01
Start UTC: 2007-02-28T13:05:00
Description: IO; Jupiter shine; 02/28/07 12:00 - 02/28/07 14:00
Sequence ID: JELO_ETERM06
Start UTC: 2007-02-28T13:40:00
Description: EUROPA; Term Topography; 02/28/07 13:15 - 02/28/07 13:45
Sequence ID: JELO_IHIRES06
Start UTC: 2007-02-28T15:15:00
Description: IO; Hi-res coverage; Timing flexible
Sequence ID: JELO_IHIRESIR04
Start UTC: 2007-03-01T00:25:00
Description: IO; Hi-res nightside- Pele on limb; Timing flexible
Sequence ID: JELO_RPHASE04
Start UTC: 2007-03-01T02:00:00
Description: ANSA; Jupiter ring - phase curve; Timing from -6 to -6.5
days,
Sequence ID: JELO_INITEMON01
Start UTC: 2007-03-01T02:25:00
Description: IO; High phase monitoring; Timing flexible
Sequence ID: JELO_ETERM07
Start UTC: 2007-03-01T03:30:00
Description: EUROPA; Term Topography; 03/01/07 05:15 - 03/01/07 05:45
Sequence ID: JELO_INITEMON02
Start UTC: 2007-03-01T04:20:00
Description: IO; High Phase Monitoring; Timing flexible
Sequence ID: JELO_ETERM08
Start UTC: 2007-03-01T05:30:00
Description: EUROPA; Term Topography; 03/01/07 05:15 - 03/01/07 05:45
Sequence ID: JELO_INITEMON03
Start UTC: 2007-03-01T07:30:00
Description: IO; High phase monitoring; Timing flexible
Sequence ID: JELO_IECLIPSE04
Start UTC: 2007-03-01T08:25:00
Description: IO; Io Eclipse; 3/1/07 8:38 Target so Alice and LEISA
integrations can be done with the same pointing.
Sequence ID: JELO_INITEMON04
Start UTC: 2007-03-01T18:00:00
Description: IO; High phase monitoring; Timing flexible
Sequence ID: JELO_RPCROSS01
Start UTC: 2007-03-01T18:15:00
Description: ANSA; Jupiter ring - main ring vertical structure
including ripples; Thebe orbit crossing - FIXED TIMING
Sequence ID: JELO_HPHASE02
Start UTC: 2007-03-01T20:00:00
Description: HIMALIA; Irregular satellites, phase coverage;
Placeholder: details not yet worked out
Sequence ID: JELO_LPHASE02
Start UTC: 2007-03-01T20:30:00
Description: ELARA; Irregular satellites, phase coverage;
Placeholder: details not yet worked out
Sequence ID: JELO_RPCROSS02
Start UTC: 2007-03-01T21:00:00
Description: ANSA; Jupiter ring - main ring vertical structure
including ripples; RPX, Amalthea orbit - FIXED TIMING
Sequence ID: JELO_ISHINE02
Start UTC: 2007-03-01T22:00:00
Description: IO; Jupiter shine; 03/01/07 21:00 - 03/01/07 23:00
Sequence ID: JELO_RPCROSS03
Start UTC: 2007-03-01T22:20:00
Description: ANSA; Jupiter ring - main ring vertical structure
including ripples; RPX, Amalthea orbit - FIXED TIMING
Sequence ID: JELO_INITEMON05
Start UTC: 2007-03-02T06:00:00
Description: IO; High phase monitoring: Tvashtar on limb; Timing
flexible
Sequence ID: JELO_RPCROSS04
Start UTC: 2007-03-02T06:20:00
Description: ANSA; Jupiter ring - main ring vertical structure
including ripples; RPX, Amalthea orbit - FIXED TIMING
Sequence ID: JELO_INITEMON06
Start UTC: 2007-03-02T08:20:00
Description: IO; High phase monitoring; Timing flexible
Sequence ID: JELO_IKODAK01
Start UTC: 2007-03-02T10:24:00
Description: IO; Io/Europa conjunction; Timing from -6 to -6.5 days,
Sequence ID: JELO_INITEMON07
Start UTC: 2007-03-02T11:18:00
Description: IO; High phase monitoring; Timing flexible
Sequence ID: JELO_INITEMON08
Start UTC: 2007-03-02T14:00:00
Description: IO; High phase monitoring; Timing flexible
Sequence ID: JELO_INITEMON09
Start UTC: 2007-03-02T23:50:00
Description: IO; High phase monitoring; Timing flexible
Sequence ID: JELO_RPHASE05
Start UTC: 2007-03-03T00:20:00
Description: ANSA; Jupiter ring - phase curve; Timing from -6 to -6.5
days,
Sequence ID: JELO_IECLIPSE05
Start UTC: 2007-03-03T04:00:00
Description: IO; High phase monitoring; Timing flexible
Sequence ID: JELO_JAURORA03
Start UTC: 2007-03-03T06:30:00
Description: JUPITER; Lyman alpha/H3+ airglow map; LEISA N/S scan;
ALICE TTAG
Sequence ID: JELO_JAURORA04
Start UTC: 2007-03-03T07:30:00
Description: JUPITER; Lyman alpha/H3+ airglow map; LEISA N/S scan;
ALICE TTAG
Sequence ID: JELO_INITEMON11
Start UTC: 2007-03-03T08:15:00
Description: IO; High phase monitoring; Timing flexible
Sequence ID: JELO_JAURORA05
Start UTC: 2007-03-03T08:40:00
Description: JUPITER; Lyman alpha/H3+ airglow map; LEISA N/S scan;
ALICE TTAG
Sequence ID: JELO_JAURORA06
Start UTC: 2007-03-03T09:30:00
Description: JUPITER; Lyman alpha/H3+ airglow map; LEISA N/S scan;
ALICE TTAG
Sequence ID: JELO_INITEMON12
Start UTC: 2007-03-03T10:15:00
Description: IO; High phase monitoring; Timing flexible
Sequence ID: JELO_INITEMON13
Start UTC: 2007-03-03T12:25:00
Description: IO; High phase monitoring; Timing flexible
Sequence ID: JELO_LPHASE03
Start UTC: 2007-03-03T15:00:00
Description: ELARA; Irregular satellites, phase coverage;
Placeholder: details not yet worked out
Sequence ID: JELO_INITEMON14
Start UTC: 2007-03-04T00:20:00
Description: IO; High phase monitoring; Timing flexible
Sequence ID: JELO_RPHASE06
Start UTC: 2007-03-04T02:40:00
Description: ANSA; Jupiter ring - phase curve; Timing flexible
Sequence ID: JELO_GKODAK01
Start UTC: 2007-03-04T03:50:00
Description: GANYMEDE; Ganymede crossing crescent Jupiter; Timing
from -6 to -6.5 days,
Sequence ID: JELO_CKODAK01
Start UTC: 2007-03-04T04:08:00
Description: CALLISTO; Jupiter crescent with Callisto emerging;
Timing from -6 to -6.5 days,
Sequence ID: JELO_HPHASE03
Start UTC: 2007-03-04T12:00:00
Description: HIMALIA; Irregular satellites, phase coverage;
Placeholder: details not yet worked out
Sequence ID: JELO_GECLIPSE02
Start UTC: 2007-03-04T12:50:00
Description: GANYMEDE; Eclipse; 03/04/07 12:50 - 03/04/07 12:50
Sequence ID: JELO_GOCC01
Start UTC: 2007-03-04T17:15:00
Description: GANYMEDE; Stellar occultation; 3/4/2007 7:40:00 PM.
Could be combined with the 'auroral response to
magnetosphere' observation.
Sequence ID: JELO_LPHASE04
Start UTC: 2007-03-05T11:00:00
Description: ELARA; Irregular satellites, phase coverage;
Placeholder: details not yet worked out
Sequence ID: JELO_HPHASE04
Start UTC: 2007-03-06T00:00:00
Description: HIMALIA; Irregular satellites, phase coverage;
Placeholder: details not yet worked out
Sequence ID: JELO_HPHASE05
Start UTC: 2007-03-07T00:00:00
Description: HIMALIA; Irregular satellites, phase coverage;
Placeholder: details not yet worked out
Sequence ID: JELO_HPHASE06
Start UTC: 2007-03-07T15:00:00
Description: HIMALIA; Irregular satellites, phase coverage;
Placeholder: details not yet worked out
For the list of observations and their parameters, refer to
the data set index table (typically INDEX.TAB & CUMINDEX.TAB,
initially in the /INDEX/ area of the data set).
Time
====
There are several time systems, or units, in use in this dataset:
New Horizons spacecraft MET (Mission Event Time or Mission Elapsed
Time), UTC (Coordinated Universal Time), and TDB Barycentric
Dynamical Time.
This section will give a summary description of the relationship
between these time systems. For a complete explanation of these
time systems the reader is referred to the documentation
distributed with the NAIF/SPICE toolkit from the NAIF PDS node.
The most common time unit associated with the data is is the
spacecraft MET. MET is a 32-bit counter on the New Horizons
spacecraft that runs at a rate of about one increment per second
starting from a value of zero at
19.January, 2006 18:08:02 UTC
or
JD2453755.256337 TDB.
The leapsecond adjustment (DELTA_ET = ET - UTC) over this dataset
is 65.184s.
The data labels for any given product in this dataset usually
contain at least one pair of common UTC and MET representations
of the time at the middle of the observation. Other portions
of the products, for example tables of data taken over periods
of up to a day or more, will only have the MET time associated
with a given row of the table.
For the data user's use in interpreting these times, a reasonable
approximation (+/- 1s) of the conversion between Julian Day (TDB)
and MET is as follows:
JD TDB = 2453755.256337 + ( MET / 86399.9998693 )
For more accurate calculations the reader is referred to the
NAIF/SPICE documentation as mentioned above.
Processing
==========
The data in this data set were created by a software data
processing pipeline on the Science Operation Center (SOC) at
the Southwest Research Institute (SWRI), Department of Space Studies.
This SOC pipeline assembled data as FITS files from raw telemetry
packets sent down by the spacecraft and populated the data labels
with housekeeping and engineering values, and computed geometry
parameters using SPICE kernels. The pipeline did not resample
the data.
Data
====
The observations in this data set are stored in data files using
standard Flexible Image Transport Sytem (FITS) format. Each FITS
file has a corresponding detached PDS label file, named according
to a common convention. The FITS files have image and/or table
extensions; see the PDS label plus the DOCUMENT files for a
description of these extensions and their contents.
This Data section comprises the following sub-topics:
- Filename/Product IDs
- CODMAC Level 2 LORRI data details
- Instrument description
- Visit Description, Visit Number, and Target in the Data Labels
- Unresolved Liens on the Data
Filename/Product IDs
--------------------
The filenames and product IDs of observations adhere to a
common convention e.g.
ALI_0123456789_0X0AB_ENG_1.FIT
^^^ ^^^^^^^^^^ ^^^^^ ^^^ ^\__/
| | | | | ^^
| | | | | |
| | | | | +--File type (includes dot)
| | | | | - .FIT for FITS file
| | | | | - .LBL for PDS label
| | | | | - not part of product ID
| | | | |
| | | | +-- Version number from the SOC
| | | | (Science Operations Center)
| | | |
| | | +--ENG for CODMAC Level 2 data *
| | | SCI for CODMAC Level 3 data *
| | |
| | +--Application ID (ApID) of the telemetry data
| | packet from which the data come
| |
| +--MET (Mission Event Time) i.e. Spacecraft Clock
|
+--Instrument/observation designator
* For those datasets where the NH project is delivering
CODMAC Level 1 & 2 data (REX & PEPSSI), ENG and SCI apply
to CODMAC Level 1 & 2 data, respectively.
Instrument Instrument/observation designators ApIDs
=========== ================================== =============
LORRI LOR 0X630 - 0X634
* Not all values in this range are used
There are other ApIDs that contain housekeeping values and
other values. See the documentation for more details.
Here is a summary of the types of files generated by each APiD:
ApIDs Data product description
===== ========================
0x630 - LORRI High-res Lossless (CDH 1)
0x636 - LORRI High-res Lossless (CDH 2)
0x632 - LORRI High-res Lossy (CDH 1)
0x638 - LORRI High-res Lossy (CDH 2)
0x631 - LORRI High-res Packetized (CDH 1)
0x637 - LORRI High-res Packetized (CDH 2)
0x633 - LORRI 4x4 Binned Lossless (CDH 1)
0x639 - LORRI 4x4 Binned Lossless (CDH 2)
0x635 - LORRI 4x4 Binned Lossy (CDH 1)
0x63B - LORRI 4x4 Binned Lossy (CDH 2)
0x634 - LORRI 4x4 Binned Packetized (CDH 1)
0x63A - LORRI 4x4 Binned Packetized (CDH 2)
Instrument description
----------------------
Refer to the following files for a description of this instrument.
CATALOG
LORRI.CAT
DOCUMENTS
LORRI_SSR.*
NH_LORRI_V###_TI.TXT (### is a version number)
SOC_INST_ICD.*
Visit Description, Visit Number, and Target in the Data Labels
---------------------------------------------------------------
The observation sequences were defined in Science Activity
Planning (SAP) documents, and grouped by Visit Description and
Visit Number. The SAPs are spreadsheets with one Visit Description
& Number per row. A nominal target is also included on each row
and included in the data labels, but does not always match with the
TARGET_NAME field's value in the data labels. In some cases, the
target was designated as RA,DEC pointing values in the form
``RADEC=123.45,-12.34'' indicating Right Ascension and Declination,
in degrees, of the target from the spacecraft in the Earth
Equatorial J2000 inertial reference frame. This indicates either
that the target was either a star, or that the target's ephemeris
was not loaded into the spacecraft's attitude and control system
which in turn meant the spacecraft could not be pointed at the
target by a body identifier and an inertial pointing value had to
be specified as Right Ascension and Declination values. The PDS
standards do not allow putting a value like RADEC=... in the PDS
TARGET_NAME keyword's value; in those cases the PDS TARGET_NAME
value is set to CALIBRATION.
Unresolved Liens on the Data
----------------------------
None exist at the present time.
Ancillary Data
==============
The geometry items included in the data labels were computed
using the SPICE kernels archived in the New Horizons SPICE
data set, NH-X-SPICE-6-JUPITER-V1.0.
Reference Frame
===============
Geometric Parameter Reference Frame
-----------------------------------
Earth Mean Equator and Vernal Equinox of J2000 (EMEJ2000) is the
inertial reference frame used to specify observational geometry
items provided in the data labels. Geometric parameters are based
on best available SPICE data at time of data creation.
Epoch of Geometric Parameters
-----------------------------
All geometric parameters provided in the data labels were
computed at the epoch midway between the START_TIME and
STOP_TIME label fields.
Software
========
The observations in this data set are in standard FITS format
with PDS labels, and can be viewed by a number of PDS-provided
and commercial programs. For this reason no special software is
provided with this data set.
Contact Information
===================
For any questions regarding the data format of the archive,
contact the person whose PDS_USER_ID is ACHENG
as described in PERSONNEL.CAT.
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