Table Of ContentTG27886
Mars Observer
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PHASE 0
SAFETY REVIEW
DATA PACKAGE
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(EASA-CR-180526) WARS GBSEEVEE: PHx, ASE 0 \
2AFETP REVIEW DATA PACKAGE (ECA b187-2 1019
Astro-Electronics Liv.) 121 I: CSCL 22B
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AstrolSpace Division
A DIVISION OF RCA AEROSPACE AND DEFENSE
This report was prepared for the Jet Propulsion Laboratory,
California Institute of Technology, sponsored by the
National Aeronautics and Space Adm in istrati on.
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MARS OBSERVER
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NATIONAL AERONAUTICS AND SPACE ADMINISTRATION/
t i - SPACE TRANSPORTATION SYSTEU
PHASE 0 SAFETY REVIEW
DATA PACKA6E
16-27886
November 17, 1966
Oreparod By: RCA Astro-Electron~cs
0.0. Box 800
Princeton, New Jersey 08540
Prepared For: Callfornla Instltute Of Technology
Jet Propulrlon Laboratory
Pata d ma, C8 11 f ornI 8 91 I09
Contract No. 957444
DRD NO, SA004 & SA007
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Wan a g @r
Mcrrt Observw Sprcecraf t System Saf ety-off lce
JPl 391
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PREFACE
This Phase Zero NASA Safety Review Data Package has been prepared by RCA
Astro-Electronics Division for the California Institute Of Technology Jet
Propulsion Laboratory. RCA has made maximum use of the experience gained with
the NASA safety process on previous spacecraft programs i n the preparation of
this package. This package also reflects the continuing effort at RCA to
refine our spacecraft safety packages. We believe that this package i s
totally responsive to the NASA safety requirements (as detailed i n NHB
1700.7A, and KHB 1700.7A). This package has been prepared as outlined i n
JSC-13830A and the Mars Observer safety analysis has been performed using the
guidelines i n JSC-11123, as specified i n JSC-13830A. RCA i s proud t o present
the Mars Observer Phase Zero NASA Safety Review Data Package.
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RCA Mars Observer Program
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Ni olas P. R Paul F. Kaskiewicz
Prbduct AssurKce Administrator Systems Engineering Manager
RCA Mars Observer Program RCA Mars Observer Program
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Charles R. Larsen
Manager Lead Engineer - Mars Observer
RCA Space Transportation Group RCA Space Transportation Group
Section Title Page
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1 .o The Mars Observer Spacecraft 1
1.1 Hission Overview 2
1.2 Spacecraft Description 3
1.2.1 Communications 3
1.2.2 Cornrnand And Data Handling 5
1.2.3 Attitude And Articulation Control 5
1.2.4 Electrical Power 5
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1.2.5 Thermal Control 5
1.2.6 Structure 6
1.2.7 Propulsion 6
1.3 Scientific Payload 7
1.4 TOS/STS Interface 8
1.4.1 Nechanical Airborne Support Equipment a
1.4.2 Electrical Airborne Support Equipment 10
1.5 Hission Scenario 15
1.5.1 Launch And Ascent 17
1.5.2 On-Orbit And Deployment 17
2.0 Safety Critical Spacecraft Subsystems 21
2.1 Communications 22
2.2 ComRand And Data Handling 25
2.3 Electrical Power 28
2.4 Thermal Control 31
2.5 Structure, Cabling, and' Mechanisms 32
2.5.1 Solar Array 35
2.5.2 Instrument Booms 37
2.5.3 High 6aSn Antenna Mechanisms 39
2.5.4 Separation Clamp Band 42
2.5.5 Cab 1i n g 42
2.6 Propulsion 44
2.6.1 Bipropellant Propulsion System 44
2.6.2 Hydrazine Propulsion System 46
3.0 Ground Support Equipment 48
3.1 Electrical Ground Support Equipment (EGSE) 49
3.1.1 Spacecraft Checkout Station (SCS) 49
3.1.2 Launch Site Equipment (LSE) 50
3.1.2.1 SCS Interface Equipment (CSIE) 52
3.1.2.2 Remote Located Equipment (RLE) 53
3.1.2.3 T-0 Umbilical Test Set (RLE) 54
3.1.2.4 Dynamic Spacecraft Simulator (DSS) 56
3.1.2.5 T-0 Umbilical Simulator 57
3.1.3 Stray Voltage And Bridgewi re Checker 57
3.1.4 Ordnance Device Simulator 57
3.1.5 Thruste r Si mu 1a tor 58
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Section Title
3.2 Mechanical Ground Support Equipment (MGSE) 59
3.2.1 Spacecraft Workstand 59
3.2.2 Spacecraft Vertical Lifting Fixture 59
3.2.3 TOS Adaptor Simulator 60
3.2.4 Workhorse Mamn Band 60
3.2.5 Spacecraft Shipping And Storage Container 60
3.2.6 Propulsion Subsystem Ground Servicing Equipment 61
4.0 Ground Operations Scenario 66
4.1 Prelaunch Operations 68
4.1.1 Payload Processing Facility (PPF) Operations 68
4.1.2 Payload Ordnance Processing Area Operations 68
4.1 -2.1 Nondestructive Test Facility (NDTL) 68
4.1.2.2 Electromechanical Testing (EMT) Facility 68
4.1.2.3 Uissile Research Test Building (HRTB) 69
4.1.3 Hazardous Processing Faci 11t y (HPF) 69
4.1.4 Vertical Processing (VPF) Operations 69
4.1.5 Orbiter Processing Facility (OPF) Operations 70
4.1.6 Launch Pad Operations 70
4.1.7 Orbiter Integrated Operations 70
4.2 Post 1a unc h Operat io ns 72
4.3 Postlanding Operations 73
4.4 Contingency Operations 74
4.4.1 Prelaunch Abort 74
4.4.2 Return To Launch Site Abort 74
4.4.3 Secondary And Contingency Landing Sites 74
5.0 Requi rements Hatrix 75
6.0 Phase 0 Hazard Reports 79
6.1 Phase 0 Flight Hazard Reports 80
6.2 Phase 0 Ground Hazard Reports 101
Appendix A Scientific Payload Safety Data (submitted under seperate cover)
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No. Title Page
1-1 Pre-Assembly View of the Nars Observer 4
1-2 Spacecraf t/TOS/Orbi ter 9
1-3 Mars Observer/TOS Cargo Element 11
1-4 Spacecraft/TOS Adaptor 12
1-5 Spacecraft/TOS/Orbiter Coordinate System 13
1-6 Equipment Hounting on TOS Cradle 14
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1-7 Mission Scenario 16
1 -8 Hars Observer Mission Phases, Launch to Insertion 18
1- 9 Mars Observer Hission Phases, Insertion to Quarantine 18
2 -1 Antenna Locations 22
2 -2 Comunications Subsystem Block Diagram 23
2 -3 CQDH Subsystem Block Diagram 26
2-4 Power Subsystem Block Diagram 29
2-5 h r s Observer Mission Configuration 32
2 -6 h r s Observer Launch Configuration 33
2 -7 Solar Array Restraint 35
2 -8 Stowed Solar Array and Boom 36
2 -9 Deployment Sequence 38
2-1 0 Nova and Dynamics Explorer Booms 40
2-1 1 H6A Boom Restraint 41
2-1 2 Bipropellant Propulsion System Schematic Diagram 45
2-1 3 Hydrazi ne Propu1 s io n System Sc hemati c Diagram 45
2-1 4 Spacecraft Axis Conventions and Thruster Locations 47
3 -1 Spacecraft Checkout Station 49
3- 2 LSE Block Diagram 51
3 -3 CSIE 53
3-4 RLE 53
3 -5 DSS/TUTS 54
3 -6 TUTS Test Configuration 55
3 -7 DSS Test Configuration 56
3 -8 Spacecraft Workstand 59
3- 9 NTO Load Cart 63
3-1 0 Hydrazine Load Cart 64
3-1 1 Pressurant Load Cart Schematic 65
4 -1 Launch Site Flow 67
5-1 Requirements Matrix 76
NYMS AND ABBREVIATIW
4rss 4r Steradian Sun Sensor
AACS Attitude and Articulation Control Subsystem
ASC American Sate1 l i t e Corporation
AS€ A ir borne Support €quip ment
ATN Advanced TIROS-N
BCA Battery Charge Assembly
BRU Battery Reconditioning Unit
BVR Battery Voltage Regulator
C&DH Comnand and Data Handling
CAD Computer Aided Design
CIU Controls Interface Unit Annex
CMU Comnand Master Unit
CPC Controls Power Converter
CPU Central Processing Unit
CSA Celestial Sensor Assembly
CSIE Checkout Station Interface Electronics
cxu Controls Interface Unit Annex
DBS Direct Broadcast Satellite
DET D ir ect Energy Transfer
DOD Department of Defense
DSS Dynamic Spacecraft Simulator
DTR Digitial Tape Recorders
EASE Electrical Airborne Support Equipment
EOF Engineering Data Formatter
EGSE Electrical Ground Support Equipment
EHI E 1e ctromagnetic Interference
E#R Electromagnetic Radiation
EVA Extra-Vehi cu 1a r Act iv it y
6PC General Purpose Computer
6RS Gama Ray Spectrometer
GSE Ground Support Equipment
HPF Hazardous Processing Facility
HZ Hertz
I TOS Improved TIROS
JSC Johnson Space Center
KBPS K il a-Bi ts Per Second
KHB Kennedy Handbook
KSC Kennedy Space Center
LSE Launch Site €quip ment
HAG Magnetometer
HAS€ Mechanical Airborne Support Equipment
HDH Mu1t ip le xer - Demul tip le xer
HGSE Hechanical Ground Support Equipment
MHSA Mars Horizon Sensor Assembly
HLP Hobi l e Launch Platf om
MMH Monomethy 1 Hyd razi n e
MON-1 Nitrogen Tetraoxide + 0.8% Nitrous Oxide
MSFC Harshall Space Flight Center
nvs Majority Vote Sequencer
NHB NASA Handbook
PC Pouer Converter
PD I Payload Data Interleaver
PDS Payload Data Subsystem
PHD Propellant Management Device
PHV Power Master Unit
POCC Payoload Operations Control Center
ROH Read Only Hemory
PPF Payload Processing Facility
PRA Pyrotechnic Relay Assembly
PROM Programnable Read Only Memory
PSE Pouer Supp 1y E 1e ctr onic s
RAM Random Access Memory
REA Reaction Engine Assembly
RLE Remote Located Equipment
RSS Rotating Servi ce Structure
RWA Reaction Wheel Assembly
s/c Spacecraft
SAD Solar Array Drive
sc P Standard Controls Processor
scs Spacecraft Checkout Station
scu Signal Conditioning Unit
SEPET System Electrical Performance Evaluation Test
SIU Shuttle Interface Unit
SRH Solid Rocket Hotor
SSP Standard Switch Panel
ssv Space Shuttle Vehicle
ST E Special lest Equipment
STS Space Transportation System
TBD To Be Determined
TBS To Be Supplied
TCE Thermal Control Electronics
T LM l e1 e met ry
TUTS T-O Umbilical Test Set
VPF Vertical Processing Facility
xsu Cross Strap Unit
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1.0 The Mars Observer Spacecraft
The Mars Observer i s a planetary exploration spacecraft that w i l l be used
t o explore Mars. The spacecraft i s being built for the California
Institute Of Technology Jet Propulsion Laboratory (JPL) by RCA
Astro-Electronics Division. RCA, as the prime contractor, provides the
spacecraft bus and i t s associated subsystems and conducts the system
integration and test activities for the entire flight system. The
scientific payload i s provided by JPL to RCA for integration with the
spacecraft bus. The scientific payload subcontracts are managed by JPL.
This package i s directed toward the RCA provided bus and spacecraft
subsystems while the scientific payload i s discussed i n an appendix to
this package t o be supplied by JPL.
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