lat status environmental testing
DESCRIPTION
Gamma-ray Large Area Space Telescope. LAT Status Environmental Testing. GLAST Large Area Telescope: W Neil Johnson Naval Research Lab [email protected] (202) 767 - 6817. LAT Status. LAT completed commissioning at SLAC May 10th. Determined effort by the Commissioner: Eric Grove - PowerPoint PPT PresentationTRANSCRIPT
GLAST LAT Project May 31, 2006: Data Challenge II Closeout
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GLAST Large Area Telescope:GLAST Large Area Telescope:
W Neil JohnsonNaval Research Lab
[email protected](202) 767 - 6817
Gamma-ray Large Gamma-ray Large Area Space Area Space TelescopeTelescope LAT StatusLAT Status
Environmental TestingEnvironmental Testing
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LAT StatusLAT Status
LAT completed commissioning at SLAC May 10th.– Determined effort by the Commissioner: Eric Grove– Excellent support leadership from
• System Engineering: Pat Hascall• Electronics/ FSW: Gunther Haller• I&T OnLine: Ric Claus• OffLine: Anders Borgland
Packed up on May 11th and departed by dedicated truck (photos to follow)
Arrived NRL on Sunday, May 14th and installed in clean tent. MGSE and EGSE arrived on Tuesday, May 16th.
Up and running by Wednesday, completed post ship comprehensive performance test on Friday.
Continued calibrations and additional tests thru the weekend. Installed new flight software and completed regression tests by
Wednesday Successfully completed Pre Environmental Review with GSFC on
Thursday. Moved to Vibration Test Lab on Friday. Vibe testing began yesterday.
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SensorsSensors
ACD before installation of Micrometeoroid Shield
1 of 16 Calorimeter modules
1 of 16 Tracker modules
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LAT before installing the ACDLAT before installing the ACD
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LAT with ACD and protective coverLAT with ACD and protective cover
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Data Acquisition System (-Z)Data Acquisition System (-Z)
EPUEPU EPUEPU
EPUEPUSIUSIU SIUSIU
GASUGASU
PDUPDU PDUPDU
GASUGASU
HIBHIB
HIBHIB
HIBHIB
HIBHIB
HIBHIB
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-Z with the Cross LAT plate installed-Z with the Cross LAT plate installed
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LAT on Shipping Container BaseLAT on Shipping Container Base
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Closing up the shipping containerClosing up the shipping container
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Loading LAT on the “IceBreaker”Loading LAT on the “IceBreaker”
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The IceBreakerThe IceBreaker
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Arrival at NRL’s Arrival at NRL’s Naval Center for Space TechnologyNaval Center for Space Technology
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Moving to Vibe LabMoving to Vibe Lab
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Lift on to Vibe TableLift on to Vibe Table
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On Vibe Table for Z-axis TestOn Vibe Table for Z-axis Test
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Weight & CG
Weight & CG
CPTCPT
Sine VibeSine VibeOffload & Set-up LATOffload & Set-up LAT
5 days 5 days 9 days
Install Radiator
s
Install Radiator
s
2 days
EMI/EMC Test
EMI/EMC Test
11 days
Acoustic Test
Acoustic Test
7 days
3 days
RemoveRadiator
s
RemoveRadiator
s
2 days2 days
LAT Test Flow
Pack and Ship
Pack and Ship
2 days
T- BalT- BalPre TVPre TV T- CycleT- Cycle
40 days
CPTCPT
NOTE: Durations for moving and setup have been incorporated into the total duration for the test.
ShipmentShipmentSystem Commissioning/ System Test
System Commissioning/ System Test
5 days
5/11/06
5/16/06
7/10/06
9/15/068 days
PER 5/25/06
PER 5/25/06
PSR 9/13/06
PSR 9/13/06
You Are Here
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ConclusionConclusion
The LAT is complete and tested.– No significant anomalies detected to date, except
• Radiator heaters were damaged during assembly process and are now being replaced
– No performance anomalies detected. Trending shows same instrument throughout assembly and test program.
The LAT Flight Software is essentially complete.– Missing GRB detection algorithm and event filter additions
• Neither particularly relevant for ground testing.• Development will continue on the test bed at SLAC.
New OnLine operating system – LICOS – commissioned
The LAT project has successfully transferred activities (and people) to NRL and is efficiently executing its environmental test program.