Document #

Date Effective

LAT-TD-06661

9 May 2005

Prepared by(s)

Supersedes

L. Latronico

H. Tajima

R. Johnson

 

GLAST LAT Technical Note

 

 

Subsystem/Office

Tracker Subsystem

Document Title

TKR Tower 1 End Item Data Package

 

 

Gamma-ray Large Area Space Telescope (GLAST)

Large Area Telescope (LAT)

Tracker Subsystem

End Item Data Package

Tower 1

 

DOCUMENT APPROVAL

 

Prepared by:

 

 

 

 

 

L. Latronico

 

Date

Approved by:

 

 

 

 

 

E. Rapposelli
TKR Subsystem Lead Engineer

 

Date

 

 

 

L. Latronico
TKR Electrical Subsystem Lead Engineer

 

Date

 

 

 

N. Mazziotta

TKR Subsystem Environmental Test Lead Engineer

 

Date

 

 

 

A. Troianiello
TKR Quality Assurance Engineer

 

Date

 

 

 

Robert P. Johnson
TKR Project Manager

 

Date

 

 

 

A. Brez
TKR Subsystem Lead

 

Date

LAT Acceptance

 

 

 

 

Dick Horn
LAT Deputy Project Manager

 

Date

 

 

 

Pat Hascall
LAT System Engineer

 

Date

 

 

 

Elliott Bloom
LAT Integration and Test

 

Date

 

 

 

Darren Marsh
LAT Mission Assurance

 

Date

 

 

 

Other

 

Date

CHANGE HISTORY LOG

 

Revision

Effective Date

Description of Changes

01

5 May 2005

Initial Draft

02 

9 May 2005

Update with post-ship information

 

 

 

 

 

 

 

 

 

 

1        PURPOSE

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 1 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.

2        Identification

Item Description:

 

LAT Tracker Tower Module 1

Identification

Part/Drawing Number

Serial Number

TKR Tower Module

LAT-DS-00722

1

Cable holding plate

LAT-DS-03826

NA

Cable holding plate + inner shipping container

LAT-DS-03949

NA

 

 

 

 

 

 

3        Certificates of Compliance 

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 (evaluated)

32.379 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

Alignment data file archive, summary report

 

Final visual inspection prior to shipping

Tower Flow-chart on file at INFN-Pisa (summary)

 

ELECTRICAL SUMMARY DATA

 

INFN Electrical Lead:

Luca Latronico

SLAC Electrical Lead:

Hiro Tajima

 

DESCRIPTION:

REMARKS:

 

 

Power consumption (28V, 25 deg C, nominal activity) TKR + TEM/TPS

19.9 W

19.6 W (21.1 deg C)

 

Power consumption (AVVDA, AVDDB, DVDD, 25 C, nominal Activity)

9.87 W

9.87 W (21.1 deg C)
(comparison with MCM measurement)

 

Part List reviewed and acceptable

Tower Flow-chart on file at INFN-Pisa (summary)

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 file (xml archive)

Tower Map (link)

Standrad 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 (summary)

 

Photographic Record

On file at INFN-Pisa (link)

 

Inspection records

Tower Flow-chart on file at INFN-Pisa (summary)

 

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 (summary)

 

Identity of manufacturers, part numbers, and serial number are correct

Tower Flow-chart on file at INFN-Pisa (summary)

 

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 (summary)

 

Inspection performed for physical damage (such as scratches or dents) and for cleanliness

Tower Flow-chart on file at INFN-Pisa (summary)

 

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

  Test Procedure: LAT-TD-05462

Summary Report

 Check-List and Results

Requirement

Criteria

Pass / Fail

 Acceptance Test

LAT-SS-00778 Sect 13

Flight Acceptance

Pass

 

 

ENVIRONMENTAL TEST SUMMARY DATA

System Engineer:

Nicola Mazziotta

 

Vibration Test

LAT-TD-00155 (Test Plan) and

LAT-TD-05499 (Test Procedure)

 

Summary Report

LAT-TD-06057-2

 

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

System Engineer:

Nicola Mazziotta

Thermal Vacuum Test - RUN 1(*)

LAT-TD-01840 (Test Plan) and

LAT-TD-05500-2 (Test Procedure)

Summary Report

LAT-TD-06058

Requirement

LAT-MD-00408 and LAT-SS-00778 Criteria

Pass / Fail

Acceptance Temperature

Max/Min Predict 5 C

LAT-MD-00408, Sect 5 Tab 5-2

15 C to +45 C (FM)

Pass

Acceptance Survival Temperature

Max/Min Predict 5 C

LAT-MD-00408, Sect 5 Tab 5-2

15 C to +45 C (FM)

Pass

Acceptance Operational Temperature

Max/Min Predict 5 C

LAT-MD-00408, Sect 5 Tab 5-2

15 C to +45 C (FM)

Pass

Hot Turn On

LAT-MD-00408, Sect 7.1.2.7

LAT-TD-05500-2, Sect 8

+45C

Pass

Cold Turn On

LAT-MD-00408, Sect 7.1.2.7

LAT-TD-05500-2, Sect 8

15C

Pass

Bakeout test

LAT-MD-00408, Sect 7.1.2.7

LAT-TD-05500-2, Sect 8.2.2

+45C

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 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

Pass

 

ENVIRONMENTAL TEST SUMMARY DATA

System Engineer:

Nicola Mazziotta

Thermal Vacuum Test - RUN 2(*)

LAT-TD-01840 (Test Plan) and

LAT-TD-05500-2 (Test Procedure)

Summary Report

LAT-TD-06372

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 Turn On

LAT-MD-00408, Sect 7.1.2.7

LAT-TD-05500-2, Sect 8

+45C

Pass

Cold Turn On

LAT-MD-00408, Sect 7.1.2.7

LAT-TD-05500-2, Sect 8

15C

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 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

Pass

(*) Tower1 is delivered with a tray configuration as documented in this EIDP. A previous configuration with a different tray located in position 17 was first assembled and environmentally tested, showing a malfunction on tray17 (see NCR/FM/INFN/PI-430). RUN1 refers to this 1st configuration. To cure the malfunction, this tray was replaced with another flight unit, while all other components of the tower remained unchanged; this 2nd configuration was then environmentally retested. RUN2 refers to this 2nd and final delivery configuration

4        Unit Performance Data

4.1       Requirements Verification

4.1.1     Performance Requirements and Verification Matrix

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

4.1.2     Performance Versus Test Phase

The TKR Comprehensive Performance Test (CPT) is defined in LAT-TD-00191.

Phase

Test

Date

Summary Status

Egse Test Session Report

Initial Test

CPT

03/18/05

Pass

 

Post EMI/EMC

CPT

NA

NA

NA

Post Vibration Test

CPT

04/06/05

Pass

 

Post TVAC Test

CPT

04/15/05

Pass

 

Hand-off Test

PS-05481

04/28/05,
04/29/05,
04/30/05

pass

Go to Shift Run Info and search run range 398000943-398001014

 

Trend Analysis

 Efficiency

NA

NA

Table of efficiency vs. time

4.1.3     Performance Issues Under Study

Noise Occupancy during Readout (TE704) will be measured during I&T phase using GASU based system.

5        Unit Support Data

5.1       Telemetry Calibration Curves

NA

5.2       Science Verification Analysis and Calibration Data

See  (link) for status of channels (link SLAC) and efficiency (link SLAC).

Calibration data (xml archive)

5.3       Software Version Report

 

Phase

Test

LATTE Release

TKR EGSE Release

Initial Test

CPT

P04-05-00

v5p1

Post Vibration Test

CPT

P04-06-03

V4-p4-pisa-1-3

Post TVAC Test

CPT

P04-06-03

V4-p4-pisa-1-3

Hand-off Test

All

P04-07-03

v5p9

 

5.4       Mate/Demate Log

Mate/Demate log (pdf)

5.5       On-time Log with Operational Hours

Operational hours available from test report. A summary report will be provided. Operational hours at SLAC are 18 hours 56 minutes (log).