Document # |
Date Effective |
|
LAT-TD-07022 |
|
|
Prepared by(s) |
Supersedes |
|
L. Latronico H. Tajima R. Johnson |
|
|
GLAST LAT Technical
Note |
|
|
Subsystem/Office |
||
Tracker Subsystem |
||
Document Title |
||
Gamma-ray Large Area Space Telescope (GLAST)
Large Area Telescope (LAT)
Tracker Subsystem
End Item Data Package
Tower 6
DOCUMENT APPROVAL
Prepared
by: |
|
|
|
|
|
L. Latronico |
|
Date |
Approved by: |
|
|
|
|
|
E. Rapposelli |
|
Date |
|
|
|
L. Latronico |
|
Date |
|
|
|
N. Mazziotta TKR Subsystem Environmental Test Lead Engineer |
|
Date |
|
|
|
A. Troianiello |
|
Date |
|
|
|
Robert P. Johnson |
|
Date |
|
|
|
A. Brez |
|
Date |
LAT Acceptance
|
|
|
Dick Horn |
|
Date |
|
|
|
Pat Hascall |
|
Date |
|
|
|
Elliott Bloom |
|
Date |
|
|
|
Darren Marsh |
|
Date |
|
|
|
Other |
|
Date |
CHANGE HISTORY LOG
Revision |
Effective Date |
Description of Changes |
01 |
|
Initial Draft |
02 |
28 July 2005 |
Update with post-ship information |
|
|
|
|
|
|
|
|
|
The purpose of this document is to collect all the data for the Glast LAT Tracker (TKR) Tower End Item Data Package (EIDP), in compliance with LAT-TD-04350 and PRC_Pi_QC_005. This document is compiled and reviewed within the Tracker subsystem prior to shipment of Tower A from INFN to SLAC. The contents of this document have been coordinated between LAT Integration, Test, and Calibration (IT&C), LAT Systems Engineering (SE), LAT Quality Assurance (QA), and the TKR subsystem.
Item Description: |
||
Identification |
Part/Drawing
Number |
Serial
Number |
|
LAT-DS-00722 |
6 |
Cable holding plate |
LAT-DS-03826 |
NA |
LAT-DS-03949 |
NA |
MECHANICAL SUMMARY DATA |
Mechanical Lead: E.
Rapposelli |
|
|
ITEM: |
REMARKS: |
|
Structural
Analysis reviewed and acceptable |
Available on
file at SLAC |
|
Structural
Tests reviewed and acceptable |
Available on
file at SLAC |
|
Open Items from tests
performed or from meetings with SLAC |
None |
|
Mass (measured) |
32.895 Kg |
|
Mass / Center of Mass
Report - Analysis |
Mass / CoM report |
|
Dimensions |
Complies with IDD |
|
Interface flatness and
surface finish |
Complies with IDD |
|
Dimension Inspection
Report |
|
|
Final visual inspection
prior to shipping |
Tower Flow-chart on file
at INFN-Pisa (summary) |
ELECTRICAL SUMMARY DATA |
Electrical Lead: Luca Latronico |
Electrical Lead: Hiro Tajima |
|
|
DESCRIPTION: |
REMARKS: |
REMARKS: |
|
Power consumption (28V, 25
deg C, nominal activity) TKR + TEM/TPS |
20.44 W |
19.32 W (22.1 deg C) |
|
Power consumption (AVVDA,
AVDDB, DVDD, 25 C, nominal Activity) |
10.28 W |
9.79 W (22.1 deg C) |
|
Overall leakage current at
100V |
137 mA |
107 mA |
|
Part List reviewed and
acceptable |
Tower Flow-chart on file
at INFN-Pisa |
N/A |
|
Pre-ship electrical Test
reviewed and acceptable |
Available on file at
INFN-Pisa |
N/A (See below for post-shipping and hand-off test results.) |
|
Open Items from previous
reviews / meetings / tests |
Status of channels history (link) |
Status of channels history (link) |
|
Relevant support documents |
Standard schema (xml archive) Tower Map (link) |
Standard schema files (xml
archive) |
PRODUCT ASSURANCE DATA |
Quality Lead Engineer: Aldo Troianiello |
|
|
DESCRIPTION: |
REMARKS: |
|
Non-conformance report
summary |
NCR summary (link) |
|
Open NCRs / RFW / RFD |
NA |
|
Traceability of unit
pedigree |
Tower Flow-chart on file
at INFN-Pisa |
|
Photographic Record |
On file at INFN-Pisa (link) |
|
Inspection records |
Tower Flow-chart on file
at INFN-Pisa |
|
Storage, handling, shock
records |
On file at INFN-Pisa |
|
WOA list |
Tower Flow-chart and
procedural travelers therein – available on file at INFN-Pisa |
|
All operations,
inspections, and tests have been completed per procedures as indicated on WOA
(signed and dated) |
Tower Flow-chart and
procedural travelers therein – available on file at INFN-Pisa |
|
All operations performed
to released and controlled procedures |
Procedures available on file
at SLAC and INFN-Pisa |
|
Chronological history is
up-to-date and reflects each major action that has transpired |
Tower Flow-chart on file
at INFN-Pisa |
|
Identity of manufacturers,
part numbers, and serial number are correct |
Tower Flow-chart on file
at INFN-Pisa |
|
All Problem Reports,
Material Review Board Reports, and failure reports are closed and accepted as
per internal procedures |
NCR database available on
file and on web at INFN-Pisa |
|
Materials and processes
used in the hardware are approved and acceptable |
Materials and processes
under configuration control at SLAC |
|
Test logbooks, including
operating time and cycle records, are complete and meet specified
requirements |
Log books on file at
INFN-Pisa |
|
All test data including
deviations have been approved and stamped by the test engineer and Quality
Assurance |
Tower Flow-chart on file
at INFN-Pisa |
|
Inspection performed for
physical damage (such as scratches or dents) and for cleanliness |
Tower Flow-chart on file
at INFN-Pisa |
|
Connectors and pins
examined for evidence of damage or contamination |
No evidence of damage or
contamination. Refer to Mate/Demate Log |
|
All environmental test
data and results meet specifications |
Environmental test reports |
ENVIRONMENTAL TEST
SUMMARY DATA |
System Engineer: Tom Himel |
||||
EMI/EMC Test |
|
||||
Summary Report |
|||||
Requirement |
Criteria |
Pass / Fail |
|||
Acceptance Test |
LAT-SS-00778 Sect 13 |
Flight
Acceptance |
Pass |
||
ENVIRONMENTAL
TEST SUMMARY DATA |
Test Engineer: Nicola Mazziotta |
|||||
Vibration
Test |
LAT-TD-00155
(Test Plan) and LAT-TD-05499
(Test Procedure) |
|||||
Summary
Report |
LAT-TD-06764 |
|||||
Requirement |
LAT-MD-00408
and LAT-SS-00778 Criteria |
Pass /
Fail |
||||
Static-Equivalent Acceleration |
LAT-SS-00778 Sect 8.1 Tab 3 |
Flight (FM) |
Pass |
|||
Random Vibration |
LAT-SS-00778 Sect 9.1 Tab 20 |
Flight (FM) |
Pass |
|||
Sinusoidal Vibration |
LAT-SS-00778 Sect 9.2 Tab 24 |
Flight (FM) |
Pass |
|||
CPT |
LAT-MD-00408,
Sect 7.1.2.1.1 |
Prior and after |
Pass |
|||
ENVIRONMENTAL TEST
SUMMARY DATA |
Test Engineer: Nicola Mazziotta |
|||
Thermal Vacuum Test |
LAT-TD-01840 (Test
Plan) and LAT-TD-05500-3 (Test
Procedure) |
|||
Summary Report |
LAT-TD-06948 |
|||
Requirement |
LAT-MD-00408 and
LAT-SS-00778 Criteria |
Pass / Fail |
||
Acceptance Operational Temperature |
Max/Min Predict ± 5 °C LAT-MD-00408, Sect 5 Tab 5-2 |
–15 °C to +45 °C (FM) |
Pass |
|
Hot/Cold Turn OFF/ON |
LAT-MD-00408, Sect 7.1.2.7 LAT-TD-05500-2, Sect 8 |
Dwell points (+45°C, -15°C) |
Pass |
|
Number of thermal cycles |
LAT-MD-00408, Sect 5 Tab 5-2 LAT-TD-05500-2, Sect 8 |
4 |
Pass |
|
CPT |
LAT-MD-00408, Sect 7.1.2.1.1 LAT-TD-05500-2, Sect 7.5.2 |
Prior, during (dwell points) and after |
Pass |
|
Functional/LPT |
LAT-MD-00408, Sect 7.1.2.1.2 LAT-TD-05500-2, Sect
7.5.1 LAT-TD-05500-2, Sect 7.5.3 |
During transitions and at dwell points |
Pass |
|
Note: The CPTs and LPTS failed on some layers due to a known number of bad channels (see NCR/FM/INFN-PI/533)
The LAT Tracker Test Verification Matrix, LAT-SS-04126, summarizes the requirements and verification method contained in:
LAT-SS-00017 TKR Subsystem Specification
LAT-SS-00134 LAT-TKR Detailed Subsystem Specification
LAT-SS-00138 TKR-LAT Mech., Thermal Interface Control Doc.
LAT-SS-00152 LAT Readout Electronic Specification
LAT-SS-00176 TKR-LAT Electrical Interface Control Doc.
LAT-SS-00778 LAT Environmental Specification
The verification status and/or data product mapping is indicated in the current release of the document
The TKR Comprehensive Performance Test (CPT) is defined in LAT-TD-00191.
Phase |
Test |
Date |
Summary Status |
Egse Test Session Report |
Initial Test |
CPT |
07/02/05, |
Pass |
|
Post EMI/EMC |
CPT |
NA |
NA |
NA |
Post Vibration Test |
CPT |
07/07/05, |
Pass |
|
Post TVAC Test |
CPT |
|
Pass |
|
|
|
|
|
|
Trend Analysis |
Efficiency |
NA |
NA |
*TE702 (Trigger jitter test) failed. Requirement is beging modified.
NA
NA
Offline analysis of alignment and efficiency report.
See (link) for status of channels (link SLAC) and efficiency (link SLAC)
Calibration data (xml archive)
Phase |
Test |
LATTE Release |
TKR EGSE Release |
Initial Test |
CPT |
P04-05-00 |
V5-p1 |
Post Vibration Test |
CPT |
P04-06-03 |
V4-p4-pisa-1-3 |
Post TVAC/Pre-Ship Test |
CPT |
P04-06-03 |
V4-p4-pisa-1-3 |
|
|
|
|
See attached report
Operational hours at SLAC are 19 hous and 52 minutes. (log)