625-610 SIS 211-05 P2 Rev. A

TABLE OF CONTENTS

1.0 GENERAL DESCRIPTION 1.2 SCOPE 1.3 APPLICABLE DOCUMENTS 1.4 
SUBSYSTEM SITING 1.4.1 Interface Location Medium 1.4.2 Data Source, 
Destinations and Transfer Method 1.4.3 Pertinent Relationships with Other 
Interfaces 1.4.4 Labeling and Identification (Internal/External)
2. INTERFACE CHARACTERISTICS 2.1 HARDWARE CHARACTERISTICS. 
2.1.1 Special Equipment and Device Interfaces 2.1.2 Special Setup 
Requirements 2.2 VOLUME AND SIZE 2.3 INTERFACE MEDIUM 
CHARACTERISTICS 2.4 FAILURE PROTECTION, DETECTION AND 
RECOVERY 2.4.1 File Backup Requirements 2.4.2 Security/Integrity Measures 
2.5 END-OF-FILE (OR MEDIUM) CONVENTIONS
3. ACCESS 3.1 PROGRAMS USING THE INTERFACE 3.2 
SYNCHRONIZATION CONSIDERATIONS. 3.2.1 Timing and Sequencing 
Characteristics 3.2.2 Effective Duration 3.2.3 Priority Interrupts 3.3 
INPUT/OUTPUT PROTOCOLS, CALLING SEQUENCES
4. DETAILED INTERFACE SPECIFICATIONS 4.1 STRUCTURE AND 
ORGANIZATION OVERVIEW 4.2 SUBSTRUCTURE DEFINITION AND 
FORMAT 4.2.1 Header 4.2.2 Body 4.2.2.1 DMS Status Event 4.2.2.2 TVSHUT 
Status Event 4.2.2.3 SSIMODE Status Event 4.2.2.4 RFS Status Event. 4.2.2.5 
MDS Statue Event 4.2.2.6 AACS Status Event 4.2.2.7 PB (Playback) Status 
Event 4.2.2.8 BITS Status Event 4.2.2.9 INST_REC_SEL Status Event 4.2.2.10 
INST_RT_SEL Status Event
625-610 SIS 211-05 P2 Rev. A
4.2.2.11 RRCC Status Event 4.2.2.12 PBSELVECT Status Event 4.2.2.13 
TLMFRAME Status Event 4.2.2.14 INST_RT_DATA Event 4.2.2.15 
INST_PB_DATA Event 4.2.2.16 BDTT Event
4.3 EXAMPLE SPACECRAFT EVENT FILE
____________________________________________________________________________ | 
| 625-610: | | PROJECT GALILEO | NUMBER: 211-05 P2 | | | | | SOFTWARE INTERFACE 
SPECIFICATION | REVISION: Rev. A | | | Phase 2 | | | | | Cover Sheet | DATE: 06/07/94 | 
____________________________________________________________________________ | 
SIS NAME: Spacecraft Event File (SEF) | 
____________________________________________________________________________ | 
DOMAIN: | | System Subsystem Program Make/Use | | MSS Sequence Generation SEQGEN 
Make | | MSS Sequence of Events Gen SEG Use | | MSS Scan Platform Modeling SCANOPS 
Use | | MSS Command Generation SEQTRAN Use | | SVC Science VAX Cluster C-Kernel Use | | 
SNIPGEN SNIPGEN Use | | OES G&C Analysis GCFS Use | | OES Power Analysis RSEF Use | | 
NAV OMAS OMAS Use | | DMS Utilities AQQC/SCEGEN Use | | | | Computer System: Unisys 
2200, Varian | 
____________________________________________________________________________ | 
PURPOSE OF INTERFACE (SUMMARY): This interface provides a people-oriented | | form of 
sequence data at the individual event (i.e. command) level intended| | for use in the mission 
operations environment. The format for the follow- | | ing interface is fully defined by SIS 211-59, 
Ground Event File. | 
____________________________________________________________________________ | 
INTERFACE MEDIUM: | | Disk File: [X] | | Magnetic Tape: [ ] Tracks: _____ Density: _____ Data 
Code: _____ | | Other: [ ]: 
|____________________________________________________________________________ | 
SIS COORDINATOR: A. Amador | 
____________________________________________________________________________ | 
SIGNATURES: | | Approval Position Name Date | | | | Ground S/W System Engineer W. Sible 
____________________ __________ | | | | Concurrence: | | | | System: | | Program Position 
Name Date | | | | MSS: SYS E A. Amador ____________________ __________ | | | | SEQGEN 
COG E V. Wang ____________________ __________ | | | | SEQGEN COG P J. Dale 
____________________ __________ | | | | SEG COG E E. Erwin ____________________ 
__________ | | | | SEG COG P K. Miller ____________________ __________ | | | | SCANOPS 
COG E/COG P S. Javidnia ____________________ __________ | | | | SEQTRAN COG E/COG 
P T. Loesch ____________________ __________ | | | | MCHS COG E/COG P C. Sagoian 
____________________ __________ | | | | SVC: SYS E J. Anderson ____________________ 
__________ | | | | C-Kernel COG E K. Deutsch ____________________ __________ | | | | COG 
P N. Bachman ____________________ __________ | | | | SNIPGEN COG E/P K. Deutsch 
____________________ __________ | 
|____________________________________________________________________________|
SIS 211-05 (Continued)
____________________________________________________________________________ | 
| | OES: SYS E J. Hofman ____________________ __________ | | | | RSEF COG E/COG P B. 
Rein ____________________ __________ | | | | | | NAV: SYS E J. Ekelund 
____________________ __________ | | | | OMAS COG E R. P. Davis ____________________ 
__________ | | | | OMAS COG P W.M. Owen ____________________ __________ | | | | | | DMS: 
SYS E C. Hidalgo ____________________ __________ | | | | AQQC COG E/COG P T. Specht 
____________________ __________ | | | | SCEGEN COG E/COG P J. Schmidling 
____________________ __________ | 
|____________________________________________________________________________|


Custodian: V. Wang

625-610
PROJECT GALILEO
SOFTWARE INTERFACE SPECIFICATION
S/C Event File (SEF)
SIS #211-05 P2
June 07, 1994
ABSTRACT: This SIS describes the form and syntax of each S/C Event File 
(SEF) which is a product of the Mission Sequence System (MSS). Each SEF will 
contain a header that identifies and describes the scope of the file, plus a body 
which provides a time ordered list of events occurring in a particular sequence.
CHANGE CONTROL: The Galileo change control procedures specified in STAP 
2.17 apply to this document.
Jet Propulsion Laboratory California Institute of Technology
JPL D-296625-610 SIS 211-05 P2 Rev. A
DOCUMENT CHANGE LOG
Change Date Affected Portions
Original 07/24/81 All
Change 1 05/17/83 Indicated by change bars
Original Phase 2 Build C 2/5/85 All
Change 1 07/10/85 Indicated by change bars per SCR 749
Change 2 02/19/86 Indicated by change bars per SCR 693
Change 3 09/10/86 Indicated by change bars per SCR 919
Change 4 06/03/87 Indicated by change bars per SCR A298
Change 5 09/01/88 Indicated by change bars per SCRs 715A,881, A361 and 
A583
Change 6 1/09/89 Indicated by change bars per SCR A764
Rev. A, Phase 2 06/07/94 Indicated by change bars per SCR B400
List of TBD Items
Page Resolution Date Item
None

625-610 SIS 211-05 P2 Rev. A
SECTION 1
GENERAL DESCRIPTION
1.1 CONTENT OVERVIEW
This Software Interface Specification (SIS) provides a people-oriented form and 
syntax for displaying sequence data within the Mission Operation System (MOS) 
environment. The header section identifies the type of file, its creation date, 
scope and genealogical ancestry. The body section lists sequence components, 
special subsystem status summaries and other events.
1.2 SCOPE
The format and syntax specifications in this document apply to all phases of the 
Galileo Mission.
1.3 APPLICABLE DOCUMENTS
625-640-211031 SEQGEN SRD
625-645-211031 SEQuence GENeration User's Guide
MOS-GLL-4-211 Functional Requirement, Galileo Mission Sequence System
625-640-211061 MCHS SRD
625-640-211101 SEG SRD
SIS 211-13 Standard Sequence Data File (SSDF)
625-540 Sequence Component Definition Document
Volume 2: Profile Activity Catalog
Volume 3: Block Dictionary
625-675-211031 Algorithm Dictionary
GLL-3-290 Command Structure and Assignments
MCCC1843-1 LIB*CLIB$ Special Feature Library, Sections 3.1 - 3.3
UP 4144.31 Sperry Univac 1100 Series Executive, Volume 3, Section 11.2.3, 
System Data Formats


625-610 SIS 211-05 P2 Rev. A
UP 8478 Sperry Univac 1100 Series Processor Common Input/Output System 
(PCIOS), Section 5.2, System Data Format
1.4 SUBSYSTEM SITING
1.4.1 Interface Location, Medium
This interface shall be implemented in an ASCII element of a program file in 
Univac Standard Data File Format (SDFF). It will be in human-readable form and 
printouts will be generated.
1.4.2 Data Source, Destinations and Transfer Method
The S/C Event File (SEF) is generated by the CHECKER processor of the 
SEQGEN Program. It is read by the MCHS-SETUP Program (in SEQTRAN) 
which generates "PREDICTS" for sequences simulated in the MCHS. It is also 
read by SEG in order to create a Sequence Of Events (SOE). SNIP reads the 
SEF to obtain SSI shutter time and PWS event time, NIMS OBSTAB reads the 
SEF to obtain NIMS events, and, SNIP, OBSTAB and DMT AQQC all read the 
SEF for playback process predicts. C-KERNEL reads SCANOPS Predicts file. 
The SEF is read by E-Kernel generation software (name TBD), which is operated 
by GLL SDT.
1.4.3 Pertinent Relationships with Other Interfaces
N/A
1.4.4 Labeling and Identification (Internal/External)
The original file name will be written into the header in the form:
Qualifier*File.Element/Version
625-610 SIS 211-05 P2 Rev. A
SECTION 2
INTERFACE CHARACTERISTICS
2.1 HARDWARE CHARACTERISTICS
2.1.1 Special Equipment and Device Interfaces
None.
2.1.2 Special Setup Requirements
None.
2.2 VOLUME AND SIZE
Each SEF shall be limited to 10000 parameter sets. A parameter set contains all 
the data necessary to invoke a given sequence component.
Parameter sets shall conform to the requirements of the Standard Sequence 
Data File, see SIS 211-13.
There shall be no more than 15 EPOCH header records (see 4.2-1).
2.3 INTERFACE MEDIUM CHARACTERISTICS
The file shall be written in Univac Standard Data File Format (SDFF). This is the 
format described in the Univac Executive manual and used by Univac Fortran V, 
Athena Fortran and LIB*CLIB$ routines ELT READ and ELT WRITE. It is not the 
format described in the Univac PCIOS manual and used by Univac FTN and 
PL/1.
2.4 FAILURE PROTECTION, DETECTION AND RECOVERY FEATURES
2.4.1 File Backup Requirements
This is handled by the individual software systems, e.g. the MSS ARCHIVE 
subsystem.
2.4.2 Security/Integrity Measures
These files have no inherent security because they are directly text editable 
using system routines.
2.5 END-OF-FILE (OR MEDIUM) CONVENTIONS
End-of-File conventions shall be in accordance with Univac Standard Data File 
Format (SDFF). 625-610 SIS 211-05 P2 Rev. A
SECTION 3
ACCESS
3.1 PROGRAMS USING THE INTERFACE
It is required for SEQTRAN, SCANOPS and SEG to access this file.
3.2 SYNCHRONIZATION CONSIDERATIONS
3.2.1 Timing and Sequencing Characteristics.
There shall be a BEGIN and a CUTOFF time in the header section. Each event 
in the body of the file shall have a time which falls in between BEGIN and 
CUTOFF.
In this document "time" refers to Spacecraft Event Time, which is Universal Time 
(UT, also referred to as GMT) of execution on the spacecraft bus. Unless 
otherwise specified, "time" is expressed in the form "yy-ddd/hh:mm:ss.fff, i.e. 
years, days of year, hours, minutes, seconds and fractions of a second.
Within the body of the file the events shall be arranged in time order.
3.2.2 Effective Duration
The effective duration is the difference between the BEGIN and the CUTOFF 
times of the header section.
3.2.3 Priority Interrupts
N/A
3.3 INPUT/OUTPUT PROTOCOLS, CALLING SEQUENCES
N/A
625-610 SIS 211-05 P2 Rev. A
SECTION 4
DETAILED INTERFACE SPECIFICATIONS
4.1 STRUCTURE AND ORGANIZATION OVERVIEW
The SEF file shall consist of an ASCII element of a program file. There will be 
exactly one file per element. The element shall consist of 132- character images. 
The file shall be organized into a header section and a body section as follows:
Keyword Data Content
# $$GLL SPACECRAFT EVENT FILE # *<Acronym> 
<Qual*File.Element/Version> # *LEVEL <Level> # *PREP <Preparer's name and 
extension> # *RUNID <Run ID of job generating file> # *PROGRAM <Program 
name and version> # *CREATION <Time the file was created> # *BEGIN <Begin 
time of sequence> # *EPOCH <EPOCH name>, <EPOCH time> # . # . # . 
Header # *CUTOFF <Cutoff time of sequence> Section # *TITLE <Title of 
sequence> # *<Acronym> <Q*F.E/V of file used by program # generating this 
file> # *<Acronym> <Q*F.E/V of ancestor file not # directly used by program # 
using this file> # . # . # . # $$EOH # Combinations of: # Sequence Components 
Body # Subsystem Status Summaries Section # Other events # .
The Header Data content begins in column 13.

625-610 SIS 211-05 P2 Rev. A
4.2 SUBSTRUCTURE DEFINITION AND FORMAT
4.2.1 Header
The descriptive name on the $$GLL record shall be "S/C EVENT FILE".
The remainder of the header shall conform to the Standard Sequence Data File 
conventions specified in section 4.2.1 of SIS 211-13.
4.2.2 Body
The body of the SEF file shall consist of event lines and continuation lines of up 
to 132 characters in length.
Event lines shall have a full Spacecraft CLocK (SCLK) time in decimal, followed 
by SpaceCraft Event Time (SCET), followed by event content in the following 
format:
Columns Content
1 - 8 Major frame count
9 ":"
10, 11 Minor frame count
12 ":"
13 Real Time Interrupt (RTI)
14 Blank
15, 16 Year
17 "-"
18-20 Day of year
21 "/"
625-610 SIS 211-05 P2 Rev. A
22-33 hh:mm:ss.fff (hours, minutes, seconds and fractions of seconds)
34 Blank
35-131 + Event content
Continuations:
Continuation lines shall have columns 1 - 34 blank. Any number of continuation 
lines may follow an event line.
Event content starting in column 35, shall consist of one of the following:
a) A verbatim copy of a parameter set (see 211-13), followed by ' << ' title-of-
parameter-set ' >> ', optionally followed by state-change-list, ';' .
There are always two semicolons: one at the end of the parameter set and one 
after everything else. The state-change-list is made up of state-changes 
separated by commas. A state-change is free form, except that it may not contain 
a comma or semi-colon.
State-changes are generated by SEQGEN Event Logic when some parameter 
set causes the value of a node having an SEF trigger to change value.
b) A Status-Event, consisting of a status-event-name ':', followed by a status-
item-list ';' .
The status-item-list is made up of status-items, separated by commas. A status-
item can be defined to have both fixed and variable content. An '*' before one of 
the variable parts shall indicate that it is a changed value.
The status-events that appear in the SEF shall be defined in this SIS document. 
In these definitions undefined columns shall be blank and strings shall be left 
justified.
As a rule, all status-events will appear at the start and end of the SEF, and when 
some value in a status-event changes.
c) A Comment, consisting of a ';' in column 35, followed by free form text.
625-610 SIS 211-05 P2 Rev. A
d) A Status-Comment, consisting of ';' '<' state-description '>', followed in column 
70 by the command that produces that state.
These commands can be continued in column 70 of a continuation line, but shall 
not exceed 80 characters in length or 20 fields, including the five standard 
parameters (Level, Name, ID, Prcsr, Time).
Status-comments are generated by SEQGEN (CHECKER) at the BEGIN and 
CUTOFF times of the sequence, and as instructed by the use of the SEQGEN 
*SCSTATE,E instruction. The selection of status-comments to be generated is 
specified in the S/C Status Criteria File (SCSC). See SEQGEN User's Guide 
section 4.2.
4.2.2.1 DMS Status Event. This event shall be generated each start and finish of 
a runup, rundown or reversal and any other 6DMSC/6DMSR commands.
Columns Content
1-34 Times, see 4.2.2
35-38 "DMS:" Status Event Name
40 "*" if following is a change since last report
41-48 Choice of: "RUNUP," "RECORD," "RUNDOWN," "READY," "REWIND," 
"PLAYBACK," "SLEW," "SLEW-TIC," "REVERSE," "AUTOSTOP," "RUNNING," 
"RESUME,"
51-54 Choice of: "RDY," "P7," "R7," "R28," "R115," "R403," "R806," "S7," "S28," 
"S115," "S403," "S806,"
57-61 "TRACK"
63 "*" if following is a change since last report
64 Choice of "0" "1" "2" "3" "4"
65 ","
67 "*" if following is a change since last report

625-610 SIS 211-05 P2 Rev. A
68-70 "FWD," or "REV,"
73-75 "TIC"
77 "*" if following is a change since last report
78-84 Tape Increment Count (TIC) in the format of NNNN.NN
86-88 "+/-"
91-96 Uncertainty TICs in the format of NNN.NN
97 ";"
The DMS continuation line will show if there is any change in the DMS status 
event:
Continuation Line:
35-43 "DMS USED:"
45-52 Start stop cycles, real number with 1 decimal place (Format NNNNNN.N)
54-71 "START STOP CYCLES,"
73-76 Tape passes, integer (up to 4 digits)
78-89 "TAPE PASSES,"
91-97 Tracks of tape across the heads, real number with 2 decimal places 
(Format NNNN.NN)
99-129 "c"
130 ','
Continuation Line:
35-40 Negator spring cycles, real number with 1 decimal place (Format NNNN.N)
42-62 "NEGATOR SPRING CYCLES"
63 ";"

625-610 SIS 211-05 P2 Rev. A
4.2.2.2 TVSHUT Status Event. This event shall be in Post Expansion checks 
each time a shutter opens or for a 36IP command with an exposure of 29.
Columns Content
1-34 Times, see 4.2.2
35-41 "TVSHUT:" Status Event Name
43-46 "FILT"
48 Choice of "0" thru "7" Filter Number modeled in response to the 36IP 
command
50-52 Filter Name corresponding to the Filter Number: 0-CLR, 1-GRN, 2- RED, 
3-VLT, 4-NIR, 5-1MC, 6-MT1, 7-MT2
53 ","
55-57 "EXP"
59-60 Choice of " 0" thru "31" Exposure Number in response to the 36IP 
command, right justified.
61 ","
63-66 "GAIN"
68 "*" if following is a change since last report
69 Choice of "1" thru "4"
70 ","
72-75 "XTND"
77 "0" "1" "2" Extension code
78 ","

625-610 SIS 211-05 P2 Rev. A
80-82 "TLM" Telemetry
84 "*" if following is a change since last report
85-90 Left justified 6TMREC command parameter (23 values defined)
91 ","
93-99 "PICOUNT" Cumulative picture count
101-106 Six digit integer
107 "," Picture Number
109-113 "PICNO" Picture identification number
115-116 Orbit number, numeric
117 Target designation
118-121 Frame No. (SSICNTRL will generate consecutive frame numbers for 
consecutive shutters.)
122 ","
TVSHUT Continuation Line:
42-47 "FL/ERS" FLOOD/ERASE
49 "*" If following is a change since last report
50-52 Choice of "ENA" "DIS"
53 ","
55-59 "RDOUT" READ OUT
61 "*" If following is a change since last report
625-610 SIS 211-05 P2 Rev. A
62-64 Choice of "ENA" "DIS"
65 ";"
4.2.2.3 SSIMODE Status Event. This event shall be generated for each 36IM 
command. Note: The last field RFMT (RECORD FORMAT) in the SSI Mode 
Status Event is derived from 3 params (The Imaging Rate, OP mode and 
Compressor Mode) of the 36IM CMD. If the 3 params are not coherent, the 
RFMT will show a "???".
Columns Content
1-34 TIMES, See 4.2.2
35-42 "SSIMODE:" Status Event Name
44-55 "IMAGING RATE"
57 "*" if following is a change since last report
58-62 Choice of "LOW" "INTER" "HIGH" "RAD" "FAST"
63 ","
65-74 "COMPRESSOR"
76 "*" if following is a change since last report
77-79 Choice of "ON" or "OFF"
80 ","
82-90 "COMP MODE" Compression mode
92 "*" if following is a change since last report
93-102 Choice of "INFO PRES" or "RATE CNTRL"
103 ","


625-610 SIS 211-05 P2 Rev. A
105-115 "LIGHT FLOOD"
117 "*" if following is a change since last report
118-120 Choice of "ON" or "OFF"
121 ","
SSIMode Continuation Line:
42-46 "RDOUT" Read Out
48 "*" If following is a change since last report
49-52 Choice of "CONT" or "SAMP"
53 ","
55-58 "MODE"
60 "*" If following is a change since last report
61-63 Choice of "LGA" or "HGA"
64 ","
66-69 "RFMT" Record Format
71 "*" If following is a change since last report.
72-74 Choice of "HIM" "HMA" "IM8" "HCA" "IM4" "HIS" "AI8" "???"
75 ";"

625-610 SIS 211-05 P2 Rev. A
4.2.2.4 RFS Status Event This event is affected by the following commands: 2E, 
2ER, 2LGA1, 2LGA2, 2KP, 2KPR, 2KS, 2KSR, 2N, 2D, 2H, 2DHR, 2T, 3TLM, 
2A, 2ANPTR, 2P,42AP, 42APR, 42AS, 42ASR, 2GP, 2GPR, 2GS and 2GSR. 
This event shall also be generated at 12 hours before the cutoff time, in addition 
to the occasions described in 4.2.2b.
Columns Content
1-34 Times, see 4.2.2
35-38 "RFS:" Status-Event Name
40 "*" if following is a change since last report
41-43 "LG1", "LG2", or "HGA"
44 ","
46-49 "STWT" S-Band Travelling Wave Tube
50 "*" if following is a change since last report
51-54 One of "OFF" "LOW" "HIGH" Power
55 ","
57-59 "SMI" S-Band Modulation Index
60 "*" if following is a change since last report
61-62 Numerical value of modulation index from 3TLM command, right justified.
63 ","
65-68 "XTWT" X-Band Travelling Wave Tube
69 "*" if following is a change since last report
70-73 One of "OFF" "LOW" "HIGH" Power
74 ","
625-610 SIS 211-05 P2 Rev. A
76-78 "XMI" X-Band Modulation Index
79 "*" if following is a change since last report
80-81 Numerical value of modulation index from 3TLM command, right justified.
82 ","
84-87 "SRNG" S-Band Ranging
88 "*" if following is a change since last report
89-91 "ON" or "OFF"
92 ","
94-97 "XRNG" X-Band Ranging
98 "*" if following is a change since last report
99-101 "ON" or "OFF"
102 ","
104-106 "DOR" Delta Oneway Ranging
107 "*" if following is a change since last report
108-110 "ON" or "OFF"
111 ","
113-116 "TWNC" Two Way Non Coherent mode
117 "*" if following is a change since last report
118-120 "ON" or "OFF"
121 ","

625-610 SIS 211-05 P2 Rev. A
123-126 "XSDC" X to S Down Converter
127 "*" if following is a change since last report
128-130 "ON" or "OFF"
131 ";"
4.2.2.5 MDS Status-Event. The SEG Program will use the information from this 
status-event plus that from 4.2.2.4 to create several DSN SOE keywords.
Columns Content
1-34 Times, see 4.2.2
35-38 "MDS:" Status-Event Name
40-42 "FMT" Telemetry Format
43 "*" if following is a change since last report
44-46 Any real-time (i.e. down link) telemetry format that can be in the first three 
characters of the 6th parameter of the 6TMSED command (e.g.,"BL3"). The most 
recently specified value shall be used. In addition 'ESS' will be printed when 40 
b/s coded or 40 b/s uncoded data has been selected via the 3TLM or 6CS 
commands.
47 ","
49-52 "SBIT" S-Band Bit Rate
53 "*" if following is a change since last report
54-59 One of " 0", " 10", " 40 CD", " 40 UC", " 1200", " 7680", " 28800", " 67200", 
" 80640", "115200", "134400"
60 ","
62-66 "STYPE" S-Band Data Type
67 "*" if following is a change since last report

625-610 SIS 211-05 P2 Rev. A
68-73 One of "HIFHIR", "HIFLOR", "LOFHIR", "LOFLOR" the SUB-CARR 
parameter of the 3TLM command, left justified, specified together with a value of 
"S" for the BAND parameter.
74 ","
76-79 "SDRV" S-Band Driver
80 "*" if following is a change since last report
81-83 One of "OFF", "1", "2", "BTH". This consists of all after the first three 
characters ("DRV") of the DRIVER parameter of the 3TLM command specified 
together with a value of "S" for the BAND parameter.
84 ","
86-89 "SEXC" S-Band Exciter
90 "*" if following is a change since last report
91-93 "ON" or "OFF"
94 ","
96-99 "XBIT" X-Band Bit Rate
100 "*" if following is a change since last report
101-106 One of " 0", " 10", " 40 CD", " 1200", " 7680"," 28800", " 80640", 
"115200", "134400"
107 ","
109-113 "XTYPE" X-Band Data Type
114 "*" if following is a change since last report
115-120 Value of SUB-CARR parameter of 3TLM command specified together 
with value of "X" for the BAND parameter.
625-610 SIS 211-05 P2 Rev. A
121 ","
123-126 "XDRV" X-Band Driver
127 "*" if following is a change since last report
128-130 One of "OFF" "1" "2" "BTH". This consists of all after the first three 
characters of the DRIVER parameter of the 3TLM command specified together 
with a value of "X" for the BAND parameter.
131 ","
MDS Continuation Line
42-47 "RTFILL" R/T Fill
48 "*"
49-53 Choice of "FILL," "NORM"
55-62 "DLKCAP_S" D/L capability s-band
63 "*"
64-66 "0," "8," "10," "20," "32," "40," "60," "80", "120," "160,"
69-76 "DLKCAP_X" D/L Capability x-band
77 "*"
78-80 "0," "8", "10," "20," "32," "40," "60," "80," "120," "160,"
81 ";"
625-610 SIS 211-05 P2 Rev. A
4.2.2.6 AACS Status Event. This event is affected by the following commands: 
7MODE 7SRDB 7PTDB 7SUN 7BIGZ 7NEGZ 7TURN 7BURN. Prior to 
expansion the 7MODE command will normally be encountered.
Columns Content
1-34 Times, see 4.2.2
35-39 "AACS:" Status-Event Name
41-44 "MODE"
45 "*" if following is a change since last report
46-53 One of "CRUISE" "INERTIAL" "ALL_SPIN"
54 ","
56-59 "TASK"
60 "*" if following is a change since last report
61-72 One of "LAUNCH" "DEPLOYMENT" "ENTRY" "AXIAL-10-N" "SPIN-
UD""SPIN-HIGH" "BURN-400-N" "HI-RATE-CORR" "SPIN-CORR" "HGA-CORR" 
"SUN-ACQ" "TRANSITION" "TURN-BURN"
73 ","
75-79 "ACCEL"
80 "*" if following is a change since last report
81-83 "ON" or "OFF"
84 ","
86-89 "LBA1" Linear Boom Actuator 1
90 "*" if following is a change since last report

625-610 SIS 211-05 P2 Rev. A
91-96 [-]ddddd Position change as a result of command Range: -32768 to 32767
98-101 dddd Absolute position of LBA1 Range: 0 to 1023
103-104 "DN"
105 ","
107-110 "LBA2" Linear Boom Actuator 2
111 "*" if following is a change since last report
112-117 [-]ddddd Position change as a result of command Range: -32768 to 
32767
119-122 dddd Absolute position of LBA2 Range: 0 to 1023
124-125 "DN"
126 ";"
Continuation Line:
41-45 "GYROS"
46 "*" if following is a change since last report
47-49 "ON" or "OFF"
50 ","
52-55 "PTDB"
56 "*" if following is a change since last report
57-63 Value from 0.96 to 785.299 with at least one digit before and after the 
decimal point.
64 ","
66-69 "TMOT"

625-610 SIS 211-05 P2 Rev. A
70 "*" if following is a change since last report
71-73 One of "RTH" "MVR" "SUN" "BB1" "BB2" "TMC"
74 ";"
4.2.2.7 PB (Playback) STATUS EVENT. This event shall be generated by 
6TMREC, 6BUFHI, 6BUFLO CMDs & Low Rate Playback (LRPB) Model
Columns Content
1-34 Times, see 4.2.2
35-37 "PB:" Status Event Name
39 "*" if following is a change since last report
40-46 Choice of: "INIT," "PAUSE," "RESUME," "TERM,"
48-50 "PRB" Priority buffer
51 "*" if following is a change since last report
53 Water level of PRB in VCDU (1 digit)
54-58 ", MUB" Multi-use Buffer
59 "*" if following is a change since last report
60-62 Water level of MUB in VCDU (up to 3 digits)
63-69 ", TRACK"
70 "*" if following is a change since last report
71 Choice of "0" "1" "2" "3" "4"
72-76 ", TIC"
77 "*" if following is a change since last report

625-610 SIS 211-05 P2 Rev. A
78-84 Tape Increment Count (TIC) of up to 4 digits, a decimal point, and 2 digits 
to the right of the decimal point.
85-91 ", BUFHI"
92 "*" if following is a change since last report
93 the commanded high water level limit (choice of 1 thru 9), representing tenths 
of buffer size. Effective limit is integer product of buffer size in VCDUs times limit 
divided by ten.
94-100 ", BUFLO"
101 "*" if following is a change since last report
102 the commanded low water level limit (choice of 1 thru 9), representing tenths 
of buffer size. Effective limit is integer product of buffer size in VCDUs times limit 
divided by ten.
103 ";"
4.2.2.8 BITS STATUS EVENT. This event provides the number of bits that were 
packetized during the past interval. The interval is user specified. By default, it is 
an 12 hour interval. (Please refer to *PBTINT Instruction in the SEQGEN User's 
Guide.)
Interval measurements will be in integer bits. Cumulative measurements will be 
reset at low rate playback initiation and termination. Cumulative values will be 
expressed as megabit floating point numbers with six digits to the right of the 
decimal point.
The BITS status event will be printed before and after low rate playback is 
initiated and terminated, and at the end of each incremental interval from such 
juncture.
Columns Content
1-34 Times, see 4.2.2
35-39 "BITS:" Status Event Name
41-47 "INTRVL+" time interval
48-55 Time interval in the format of hh:mm:ss

625-610 SIS 211-05 P2 Rev. A
68-70 "PRB"
72 "+"
73-81 Priority buffer data packetized during the past interval
82 "="
83-92 Accumulated priority buffer data
93 ","
95-97 "RTS" Real Time Science Data
99 "+"
100-108 Real time science data packetized during the past interval
109 "="
110-119 Accumulated real time science data
120 ","
Continuation Line:
41-42 "PB" Playback Data
45 "+"
46-54 Playback data packetized during the past interval
55 "="
56-65 Accumulated playback data
66 ","
68-71 "RRCC" Record Rate Change Coverage
72 "+"
73-81 RRCC data packetized during the past interval


625-610 SIS 211-05 P2 Rev. A
82 "="
83-92 Accumulated RRCC data
93 ","
95-96 "DL" Downlink data
99 "+"
100-108 Downlink data framed during the past interval, including coding, 
overhead and fill
109 "="
110-119 Accumulated downlink data
120 ","
Continuation Line:
41-43 "BDT" Buffer Dump to Tape data
45 "+"
46-54 BDT data recorded during past interval
55 "="
56-65 Accumulated BDT data
66 ","
68-71 "CFIL" Commanded fill data (6TMSED Command)
72 "+"
73-81 Commanded fill data downlinked during the past interval
82 "="
83-92 Accumulated commanded fill data
93 ","

625-610 SIS 211-05 P2 Rev. A
95-98 "AFIL" Autonomous fill data
99 "+"
100-108 Autonomous fill downlinked during the past interval
109 "="
110-119 Accumulated autonomous fill data
120 ","
Continuation Line:
41-44 "LOST" Bits lost due to PRB or MUB overflow
45 "+"
46-54 Lost bits during the past interval
55 "="
56-65 Accumulated lost bits
66 ";"
4.2.2.9 INST_REC_SEL STATUS EVENT. This event shall be triggered by the 
commands 6RCSEL, 6RCDSL for selecting or deselecting instruments from 
record.
Columns Content
1-34 Times, see 4.2.2
35-47 "INST_REC_SEL:" Status Event Name
49-51 "DDS"
52 "*" if following is a change since last report
53-56 Choice of: "SEL," "DSL,"
58-60 "EPD"


625-610 SIS 211-05 P2 Rev. A
61 "*" if following is a change since last report
62-65 Choice of: "SEL," "DSL,"
67-69 "EUV"
70 "*" if following is a change since last report
71-74 Choice of: "SEL," "DSL,"
76-78 "HIC"
79 "*" if following is a change since last report
80-83 Choice of: "SEL," "DSL,"
85-87 "PLS"
88 "*" if following is a change since last report
89-91 Choice of: "SEL" "DSL"
92 ";"
4.2.2.10 INST_RT_SEL STATUS EVENT. This event shall be triggered by the 
commands 6RTSL1, 6RTDS1, 6RTSL2, 6RTDS2 for selecting or deselecting 
instruments and real time engineering from the R/T downlink.
Columns Content
1-34 Times, see 4.2.2
35-46 "INST_RT_SEL:" Status Event Name
48-50 "DDS"
51 "*" if following is a change since last report
52-55 Choice of: "SEL," "DSL,"
51-59 "EPD"
60 "*" if following is a change since last report

625-610 SIS 211-05 P2 Rev. A
61-64 Choice of: "SEL," "DSL,"
66-68 "EUV"
69 "*" if following is a change since last report
70-73 Choice of: "SEL," "DSL,"
75-77 "HIC"
78 "*" if following is a change since last report
79-82 Choice of: "SEL," "DSL,"
84-86 "MAG"
87 "*" if following is a change since last report
88-91 Choice of: "SEL," "DSL,"
93-96 "NIMS"
97 "*" if following is a change since last report
98-101 Choice of: "SEL," "DSL,"
Contination Line:
48-50 "PLS"
51 "*" if following is a change since last report
52-55 Choice of: "SEL," "DSL,"
57-59 "PWS"
60 "*" if following is a change since last report
61-64 Choice of: "SEL," "DSL,"
66-68 "UVS"
69 "*" if following is a change since last report

625-610 SIS 211-05 P2 Rev. A
70-73 Choice of: "SEL," "DSL,"
75-77 "RTE"
78 "*" if following is a change since last report
79-82 Choice of: "SEL," "DSL,"
84-87 "AACS"
88 "*" if following is a change since last report
89-91 Choice of: "SEL," "DSL,"
92 ";"
4.2.2.11 RRCC STATUS EVENT. This event shall be generated when there is a 
change from one record rate to another while RRCC is set to > 0 minor frame. It 
will report the actual gap and the number of RRCC minor frames.
Columns Content
1-34 Times, see 4.2.2
35-39 "RRCC:" Status Event Name
41-63 "Minor Frames Collected:" controlled by 6RCSET & 6RCCLR commands
65-66 Number of mf collected (2 digits)
67 ","
69-82 "VCDUs created:"
84-85 2 digit #VCDUs
86 ";"

625-610 SIS 211-05 P2 Rev. A
4.2.2.12 PBSELVECT STATUS EVENT per ECR 35566, Table 4.3.2. This event 
displays the current location in the current segment, record time, together with 
the integrated PBT selection status of all selectable "instruments". When several 
PBT entries have the same record time, this event will be issued only after the 
last such entry is encountered. Therefore several instruments could be marked 
as changed. This event will be generated by the Low Rate Playback process.
Columns Content
1-34 Times, see 4.2.2
35-44 PBSELVECT: Status Event Name
46-50 "SEGNO"
51 "*" if following is a change since last report
52-54 Number of current segment, 1 to 255
55 ","
57-61 "ENTRY"
63-64 Entry number in the current segment of the current PBT entry. Always 
changes. (1-62)
65 ","
67-70 "RECT"
72-90 Record time from current PBT entry.
91 ","
93-98 "RECFMT"
99 "*" if following is a change since last report
100-102 Record format from most recent SINGLE, RECFMT entry. While this 
does not match record format of the corresponding ECMD RECREC the effect 
will be that nothing is selected. 3 chars.
103 ","

625-610 SIS 211-05 P2 Rev. A
105-109 "AACS2"
110 "*" if following is a change since last report
111-114 "Choice of "SEL," or "DSL,"
116-119 "DDS2"
120 "*" if following is a change since last report
121-124 "Choice of "SEL," or "DSL,"
Contination Line:
41-44 "ENG2"
45 "*" if following is a change since last report
46-49 "Choice of "SEL," or "DSL,"
51-54 "EPD2"
55 "*" if following is a change since last report
56-59 "Choice of "SEL," or "DSL,"
61-64 "EUV2"
65 "*" if following is a change since last report
66-69 "Choice of "SEL," or "DSL,"
71-74 "HIC2"
75 "*" if following is a change since last report
76-79 "Choice of "SEL," or "DSL,"
81-84 "MAG2"
85 "*" if following is a change since last report
86-89 "Choice of "SEL," or "DSL,"

625-610 SIS 211-05 P2 Rev. A
91-95 "NIMS2"
96 "*" if following is a change since last report
97-100 "Choice of "SEL," or "DSL,"
102-105 "PLS2"
106 "*" if following is a change since last report
107-110 "Choice of "SEL," or "DSL,"
Contination Line:
41-44 "PPR1"
45 "*" if following is a change since last report
46-49 "Choice of "SEL," or "DSL,"
51-54 "PPR3"
55 "*" if following is a change since last report
56-59 "Choice of "SEL," or "DSL,"
61-64 "PWH2"
65 "*" if following is a change since last report
66-69 "Choice of "SEL," or "DSL,"
71-74 "PWH5"
75 "*" if following is a change since last report
76-79 "Choice of "SEL," or "DSL,"
81-84 "PWL3"
85 "*" if following is a change since last report
86-89 "Choice of "SEL," or "DSL,"
625-610 SIS 211-05 P2 Rev. A
91-94 "SSI1"
95 "*" if following is a change since last report
96-99 "Choice of "SEL," or "DSL,"
101-104 "UVS2"
105 "*" if following is a change since last report
106-108 "Choice of "SEL" or "DSL"
109 ";"
4.2.2.13 TLMFRAME STATUS EVENT. This event provides the count of 
telemetry frames since the previous TLMFRAME event, the number of VCDU 
from each type of data and the water levels of the priority buffer and the multi-use 
buffer. The sum of the VCDU counts will always be exactly 4 (the number of 
VCDUs in a telemetry frame) times the number of frames in the reporting interval 
(*TLMFRM command).
Columns Content
1-34 Times, see 4.2.2
35-43 " TLMFRAME:" Status Event Name
45-49 Count of telemetry frames from sequence start (up to 4 digits) or PB init.
50 ","
52-54 "PRB"
56-59 Number of VCDUs from the Priority buffer
60 ","
62-63 "PB"
65-68 Number of VCDUs from the playback data
69 ","
71-73 " BDT"


625-610 SIS 211-05 P2 Rev. A
75-78 Number of VCDUs from the buffer dump to tape data
79 ","
81-83 "PAD"
85-88 Number of PAD VCDUs originating from the SET_BUF ECMD
89 ","
92-95 "RRCC"
97-100 Number of VCDUs from the RRCC data
101 ","
103-105 "RTS"
107-110 Number of VCDUs from the Real time science data
111 ","
113-116 "FILL"
118-121 Number of VCDUs from the fill data
122 ","
Contination Line:
35-51 "WATER LEVEL: PRB" Priority buffer
53-55 Water level of PRB in VCDU (up to 3 digits)
56 ","
58-60 "MUB" Multi-use Buffer
62-64 Water level of MUB in VCDU (up to 3 digits)
65 ";"
625-610 SIS 211-05 P2 Rev. A
4.2.2.14 INST_RT_DATA EVENT. This event shall accompany each BITS 
EVENT (See 4.2.2.8). It presents cumulative values of bits packetized for each 
instrument or engineering source.
Cumulative values will be reset at low rate playback initiation and termination. 
Cumulative values will be expressed as megabit floating point numbers with six 
digits to the right of the decimal point.
The INST_RT_DATA status event will be printed before and after low rate 
playback is initiated and terminated, and at the end of each incremental interval 
from such juncture.
Columns Content
1-34 Times, see 4.2.2
35-47 "INST_RT_DATA:" Status Event Name
49-51 FMT
52 "*" if following is a change since last report
53-55 <Current realtime format> e.g. DL4
56-61 ", DDS"
62 "*" if following is a change since last report
64-73 Accumulated data
74-78 ", EPD"
79 "*" if following is a change since last report
81-90 Accumulated data
91-95 ", EUV"
96 "*" if following is a change since last report
98-107 Accumulated data
108-112 ", HIC"

625-610 SIS 211-05 P2 Rev. A
113 "*" if following is a change since last report
115-124 Accumulated data
125 ","
Continuation Line:
42-44 "MAG"
45 "*" if following is a change since last report
47-56 Accumulated data
57-62 ", NIMS"
63 "*" if following is a change since last report
64-73 Accumulated data
74-78 ", PLS"
79 "*" if following is a change since last report
81-90 Accumulated data
91-95 ", PWS"
96 "*" if following is a change since last report
98-107 Accumulated data
108-112 ", UVS"
113 "*" if following is a change since last report
115-124 Accumulated data
125 ","
Continuation line:
42-45 "AACS"
625-610 SIS 211-05 P2 Rev. A
46 "*" if following is a change since last report
47-56 Accumulated data
57-61 ", RTE"
62 "*" if following is a change since last report
64-73 Accumulated data
74-85 ", LRPB state"
87-89 "IPB", "TPB", "PPB", or "RPB"
90 ";"
4.2.2.15 INST_PB_DATA EVENT per ECR 35566, Table 4.3.2. This event 
presents cumulative values of bits packetized for each kind of instrument or 
engineering data that can be selected in a playback table (PBT).
Cumulative values will be reset at low rate playback initiation and termination. 
Cumulative values will be expressed as megabit floating point numbers with six 
digits to the right of the decimal point.
The INST_PB_DATA status event will be printed after low rate playback is 
initiated, before it is terminated, and any time the ACT_NAME in an expiring 
RECREC ECMD is about to be replaced by an new ACT_NAME in the next 
RECREC.
The cumulative data values will be zero in the first INST_PB_DATA event after 
playback initialization. They will contain the accumulations from initialization 
through the end of the named ACT_NAME, or for the entire playback at playback 
termination.
Columns Content
1-34 Times, see 4.2.2
35-47 "INST_PB_DATA:" Status Event Name
50-68 <record time at playback initiation, at playback termination, or when 
ACT_NAME in RECREC ECMD is about to be replaced>


625-610 SIS 211-05 P2 Rev. A
71-84 <PB_INITIATION or PB_TERMINATION or ACT_NAME in RECREC 
ECMD that is about to be replaced by another ACT_NAME in another ECMD>
96-100 "AACS2"
101 "*" if following is a change since last report
102-111 Accumulated data
112-117 ", DDS2"
118 "*" if following is a change since last report
120-129 Accumulated data
130 ","
Continuation Line:
42-45 "ENG2"
46 "*" if following is a change since last report
48-57 Accumulated data
58-63 ", EPD2"
64 "*" if following is a change since last report
66-75 Accumulated data
76-81 ", EUV2"
82 "*" if following is a change since last report
84-93 Accumulated data
94-99 ", HIC2"
100 "*" if following is a change since last report
102-111 Accumulated data
625-610 SIS 211-05 P2 Rev. A
112-117 ", MAG2"
118 "*" if following is a change since last report
120-129 Accumulated data
130 ","
Continuation line:
42-46 "NIMS2"
47 "*" if following is a change since last report
48-57 Accumulated data
58-63 ", PLS2"
64 "*" if following is a change since last report
66-75 Accumulated data
76-81 ", PPR1"
82 "*" if following is a change since last report
84-93 Accumulated data
94-99 ", PPR3"
100 "*" if following is a change since last report
102-111 Accumulated data
112-117 ", PWH2"
118 "*" if following is a change since last report
120-129 Accumulated data
130 ","

625-610 SIS 211-05 P2 Rev. A
Continuation line:
42-45 "PWH5"
46 "*" if following is a change since last report
48-57 Accumulated data
58-63 ", PWL3"
64 "*" if following is a change since last report
66-75 Accumulated data
76-81 ", SSI1"
82 "*" if following is a change since last report
84-93 Accumulated data
94-99 ", UVS2"
100 "*" if following is a change since last report
102-111 Accumulated data
112-117 ", BDTT"
118 "*" if following is a change since last report
120-129 Accumulated data
130 ";"

625-610 SIS 211-05 P2 Rev. A
4.2.2.16 BDTT EVENT. This event presents the duration of the RECREC, the net 
VCDUs and the gross VCDUs from the MUB. It appears in the SEQGEN SEF at 
the completion of a Buffer Dump to Tape. It is coincident with the creation of a 
BDT RECREC.
Columns Content
1-34 Times, see 4.2.2
35-40 "BDTT: " Status Event Name
41-51 "Lasted for"
52-60 Duration in the format of +hh:mm:ss (i.e., duration of the RECREC)
61-74 ", Net VCDUS = " Net VCDUs are from the formula MAX(0, <Gross> 
<MUB>), where <MUB> represents the current contents of the MUB, which 
consists of the sum of the types of VCDUs that can occupy the MUB (such as 
Playback, Pad, RRCC, RTS), except for PWS fill.
75-TBD Net VCDUS in integer, not in fixed format
TBD ", Gross VCDUS = " Gross VCDUs are computed from the duration, using 
7680 bits per second and 446 bytes per VCDU.
TBD Gross VCDUS in integer, not in fixed format
TBD ";"
4.3 EXAMPLE SPACECRAFT EVENT FILE
(Please see your local library for hard copy of this section)