GLAST LAT Project
Gamma-ray Large
Area Space
Telescope
Monthly Status Review - ISOC, 1 September 2005
GLAST Large Area Telescope
WBS 4.1.B
Instrument Science Operations Center
Monthly Status Review
1 September 2005
Rob Cameron
rac@slac.stanford.edu
650-926-2989
1
GLAST LAT Project
Monthly Status Review - ISOC, 1 September 2005
ISOC Management

ISOC Operations Facility
– Met with SLAC management to review plans for Ops facility in
Building 84, near existing Dataflow Lab
– Preparing SLAC infrastructure proposal for construction of
operations facility
– ISOC staff will be relocated to Building 84, coincident with
KIPAC move to new building
– To be completed in 2006
 Coordination activities
– GLAST/SCCS meetings
• Managing ITAR-controlled data and computers
• Offline processing – GLAST/BaBar resource sharing
– Increasing I&T coordination
• Fastcopy data transport to SLAC during NRL, SASS tests
• LAT Configuration tracking and control
– Operations Planning meetings
• User review of FSW
2
GLAST LAT Project
Monthly Status Review - ISOC, 1 September 2005
ISOC Ground Test Preparations

Continued Ground Readiness Test Team (GRTT) participation with
GSFC and other ground elements
– Preliminary test objectives and procedures agreed to for GRT3
and GRT4
– Dates of GRT3 and GRT4 swapped to give more time to prepare
for GRT3 (a much larger test for ground elements)

Next GRT - GRT4 on 25 Oct 05
– Regression test for ISOC - no new functionality
– New SW release (# 1.1) to be made ~ 4 wks before test
• No new functions to be tested, but incorporate several
improvements since GRT2
• Will verify before test that functions needed for GRT4 still work
in release 1.1
3
GLAST LAT Project
Monthly Status Review - ISOC, 1 September 2005
ISOC Ground Test Preparations –
GRT 3 on 6 Dec 05

New ISOC functions in GRT3
– Ingest new data products from MOC into ISOC database
• New orbital data products
• Integrated Science Timeline
– Trending data ingest and display/plot
– Logging
• Log receipt/transmission of data products
• Limit exceeded messages
• Operator comments
• Includes database and web interface
– Science Data Processing
• Ingest L0  Process into L1 data
 Package into ICD-compliant L1 product  Send to GSSC
• Provided small sample of L0 data to PSS
• Still need to create large L0 sample to use in GRT3
– Cover typical pass size (~ 2GByte/pass)
– With overlap between passes
– Needed at least 1 month before test (by early Nov)

SW release 1.2 to be completed 9 Nov 05 (~4 weeks before GRT3)
– New functions to be acceptance tested locally before release
– Began acceptance test preparations for release 1.2
• Enhanced requirements database to support new tests
• Identifying requirements to include in 1.2
4
GLAST LAT Project
Monthly Status Review - ISOC, 1 September 2005
ISOC Ground Test Preparations –
Ground System Discrepancy Review Board

GSDRB began in August
– Includes all ground elements
– Primary focus is ground system problems identified in
GRTs, ETEs, Mission Sims
– All problems addressed by GSDRB tracked via SOARS
(GSFC discrepancy reporting tool)
– Met twice in August
• Agreed on roles and procedures of GSDRB
• Dispositioned all pending SOARS reports
– Generally to meet once/month or more often as needed
– Next meeting 12 Sept 05
5
GLAST LAT Project
Monthly Status Review - ISOC, 1 September 2005
Software Development


Next release planned for 22 September 2005
– Interim release to bring production installation up to head
of development tree (release # 1.1)
– Adds retrieval of CCSDS packet groups from raw archive –
required for science data processing in GRT3.
Began integrating ISOC code modules into LICOS framework
for I&T support.
– CCSDS packet archive file object used for recording
telemetry data from the VSC.
– ISOC raw-archive implementation used for data-storage
organization and retrieval.
– Flight-like packaging of data and use of FASTCopy for
transfers from I&T equipment to SLAC Central Unix.
6
GLAST LAT Project
Monthly Status Review - ISOC, 1 September 2005
Software Development (cont’d.)

I&T support (cont’d)
– Modified FASTCopy-automation software and database to
operate on non-Oracle RDBMS (PostgreSQL) for use on I&T
mobile rack.
– Packaged ISOC software and required external packages
for automated installation on mobile rack.
7
GLAST LAT Project
Monthly Status Review - ISOC, 1 September 2005
GOWG/GIMGOM Activity


Ops Data Products ICD issues
– Handling of priority and normal command requests by
GSSC
– Change to project database delivery to ISOC - will be
delivered as a directory of “tarred” files, which is then
“tarred” with a manifest
– Reviewed and approved new Science Timeline format
– Deleted Spacecraft Timeline because information is
provided to ISOC through other means and the timeline
itself is not used by the MOC
– Discussed revising As-Flown Timeline to ensure it
contains useful information
Finalized agenda for the Sept Ops TIM
8
GLAST LAT Project
Monthly Status Review - ISOC, 1 September 2005
GOWG/GIMGOM Activity (cont.)




Aura Mission Planning tool (used on Aura project)
– MOC evaluating use of tool (with modifications) during
L&EO and on-orbit ops
– Pass plan used for routine operations with ISOC
command requests handled through change requests –
would still have GSSC approval of requests
Relative Time Sequence (RTS) allocation - 35 slots with 29
for S/C and 6 allocated for use by LAT and GBM
Operation Agreements - interface information between the
ground elements that does not belong in ICD
Confirmation of PROC requests by GSSC
– GSSC confirms PROC requests (real time command
requests) from ISOC are valid but does not validate
PROC contents
– List of PROC requests to be added to ICD
– Use of rejection messages will be described in MOA
9
GLAST LAT Project
Monthly Status Review - ISOC, 1 September 2005
ISOC Database Activities

LAT Command and Telemetry database
– Updating LAT T&C DB for housekeeping trending, as
updates occur in conjunction with FSW releases
– Working with I&T on control of telemetry limits and cal
curves to be shared between LICOS for (SLAC and NRL
testing) and dbx files (for SASS testing and flight ops).
10
GLAST LAT Project
Monthly Status Review - ISOC, 1 September 2005
LAT Configuration Control and Tracking

Second TIM held on 15 August
– Operations concept review
– LAT configuration data flow through existing and proposed tools
– MOOT/MOOD (config management tools and database) design
progress
– LICOS interfaces
– Instrument turn-on sequence
– Agenda:
http://confluence.slac.stanford.edu/display/ISOC/TIM%2C+15+Aug
+2005
 First draft of all MOOD database tables nearing completion
– Next: make test database to operate with FSW tools
11
GLAST LAT Project
Monthly Status Review - ISOC, 1 September 2005
Issues and Concerns

Handling ITAR-restricted data
– Spacecraft telemetry (which contains 96 LAT analog
telemetry points + bilevel telemetry)
– Optional approaches
• ITAR-compliant restricted network for GLAST data,
firewalled from SCCS servers, filesystems and
databases
• Use ITOS capabilities at MOC to extract and deliver LATspecific telemetry as sequential prints. ICD change
required.
12
GLAST LAT Project
Monthly Status Review - ISOC, 1 September 2005
Future Activities




Ops TIM – 14-15 September 2005
GRT4 – 25 October 2005
GRT3 – 6 December 2005
MOR – 15-16 March 2006
13
GLAST LAT Project
Monthly Status Review - ISOC, 1 September 2005
Level 3 Milestone Count
2
JUL05
JUN05
APR05
MAR05
FEB05
0
DEC05
1
JAN05
Plan
Actual
Forecast
14
GLAST LAT Project
Monthly Status Review - ISOC, 1 September 2005
Level 3 Milestone List
WPNO
Activity
Description
Baseline
Finish
-2m -1m
Delta
Bsln
Var Var Var
Early
Finish
2005
2006
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
OCT
NOV
DEC
JAN
FEB
MAR
APR
MAY
JUN
JUL
4.1.B ISOC
Ground System Interface Test start
06/15/05*
-9
-9
-9
06/28/05A
Mission Operations Review
01/17/06*
0
0
0
01/17/06*
Run Date
08/19/05 08:47
Data Date
08/01/05
© Pri mavera Systems, Inc.
GLAST LAT PROJECT
Level 3 Milestones
Baseline Variance (Organized by Subsystem )
LT-DZ: Baseline Variance
FL-D4: AV: Level 3 Milestones
Report #10
Sheet 12
15
GLAST LAT Project
Monthly Status Review - ISOC, 1 September 2005
Milestone Variance Explanation



Schedule Impact
Cost Impact
Corrective Action
– None Required
16
GLAST LAT Project
Monthly Status Review - ISOC, 1 September 2005
Cost Report
Reporting
Category
Cost Incurred
During Month
Actual Planned
4.1.B LAT INSTRUMENT SCIENCE OPERATIONS CENTER
4.1.B.1 PROJECT MANAGEMENT
4.1.B.2 PERFORMANCE ASSURANCE
4.1.B.3 MISSION & OPERATIONS PLANNING
4.1.B.4 LAT OPERATIONS FACILITY
4.1.B.5 IOC TEST
4.1.B.6 LAT PERFORMANCE VERIFICATION
CAPW[3]Totals:
2
0
0
0
0
0
2
Cum. to Date
Actual Planned
5
0
0
0
0
0
5
Unfilled
Estimated Final
Orders
Cost
Balance of Contractor Contract Outstanding
Contract Estimate Value
Estimated Cost
171
0
101
16
0
24
312
181
6
101
16
0
24
327
Detail
AUG05 SEP05
5
0
0
0
0
0
5
2
0
0
0
0
0
2
9
6
0
0
0
0
15
188
6
101
16
0
24
334
188
6
101
16
0
24
334
0
0
0
0
0
0
17