Mars Reconnaissance Orbiter MOSGDS CDR 8.7 ONC Peer Review

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Mars Reconnaissance Orbiter MOS/GDS CDR8.7 -
ONC Peer Review

• Steve Synnott
• February 24/25, 2004

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Agenda

• Peer Review Summary
• RFAs and Status
• Uplink Process Summary
• Downlink Data Flow and engineering demo
  processing
• Operations system and software
• Phase C/D Budget and Schedule
• Phase E Budget and Schedule
• Open Items

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Peer Review Report

• Synnott really knows what hes doing
• Synnott has to get tougher
• Responsibility not clear for ONC ATLO activities
  (tests and criteria)
• Need final OIAs for LMA (U/L) and MIPL (D/L)
  interfaces
• Need contingency plan(s)
• Need incompressible test list
• Opnav data outage (-13 to -8 d) longer than
  necessary?
• Need criteria for GO/NO-GO for ONC Sequence 2
  (-8 to -2d)
• Plan is sketchy

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RFA Response Summary
ONC Peer Review
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Optical Navigation On MRO
Uplink and Downlink Process Overview
Constraints
Picture sequence Request file T1,
ra,dec,exp . tn, ra,dec,exp
MRO/LMA Ground Sequence process
SOE
OTB
IND s/w Pic Plan
Phobos Stars Traj
Opnav check
telemetry
Ground System computer
S/C SSR D/L
Seq commands To ACS, camera
pictures
S/C
Camera
Opnav computer IND s/w
Pictures
Predicts
Archive
Partials, Residuals
Analysis Display
Trajectory Estimation
Dynamics
Registration
Image Proc.
S/C
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Optical Navigation Operations and Analysis
Software
Object location predicts (TGP)
Exists Image registration (Rover)
Prototypes exist Star Centroiding
(OBSERV) Prototype
exists Phobos/Deimos/Mars (OBSERV)
Prototype exists centroiding Calculation of
predicts-observed (OOPG) Exists Calculation of
partials wrt trajectory Exists and
ephemeris parameters (OOPG) Trajectory/ephemeris
estimation (ODAP) Exists Orbit Determination
Program (ODP) Exists Accuracy analysis
and simulation tools Prototypes exist
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Phase C/D budget and Schedule

• Budget FY04
• 0K from MTP and MRO
• 50K from IND
• Budget FY05
• 200K from MTP
• 40K from IND?
• Schedule
• Uplink S/W and example request files ---
  Sept 2004
• D/L S/W
  --- June 2005

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Phase E budget and Organization

• Budget FY06
• 400K
• Organization
• PI plus parts of 2 OpNav analysts

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Open Items

• Re-iterate the importance of -8 to -2 d ONC
  imaging data. These images are necessary to meet
  the ONC Level 2 Experiment requirement of 612
  images, which the PI believes is the minimum
  number required to fully conduct the experiment.
  (O4)

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Backup Charts
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OIA and SIS listing

• OIA describing picture request file to LMA
• OIA/SIS describing picture files from MIPL to ONC
• OIA to provide periodic ONC status reports
• OIA for data allocation file from FET

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Procedure Listing

• none

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Team Tool and Software Module listing

• Listed in main presentation

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Training and Certification Plan

• Opnav engineers training on Cassini today
• D/L process very similar
• ATLO data flow and cruise calibration data flow
  will be the checks for MRO
• Uplink communications with LMA
• Test picture request file interface, non-real
  time
• Verify quaternions
• Verify opnav events, times exposure, pointing in
  SOE
• To be done on a schedule acceptable to LMA