NIRCam
News
March 12, 2007
Previous editions are available in the archive.
Tuesday Telecon
|
Date |
Meeting Agenda |
GSFC Location |
|
Tuesday, Mar 13 16:00 EDT |
NIRCam MICD EO8 |
Bld 22, room
C399 |
|
|
|
|
Other meetings to note next
week:
Tuesday, Mar 13 at 2 pm EDT: Filter Measurements
Thursday, Mar 15 at 11 am EDT: ISM/OTE telecon topic is NIRCam FOV and Coronagraph vignetting.
Thursday, Mar 15 at 1:30 pm EDT: NIRCam IRD CCB
Thursday, Mar 15 at 2 pm EDT: NIRCam GSE Harnesses
Friday, Mar 16 TBD: NIRCam KM Requirements
Announcements
A new bench incident at AxSys is currently
under investigation.
NIRCam Calendar
|
Date |
Event |
Details |
|
Mar 20, 2007 |
NIRCam Monthly |
|
|
Mar 28-29, 2007 |
Optics |
|
|
Apr 26, 2007 |
NIRCam Monthly |
|
|
May 22, 2007 |
NIRCam Monthly |
|
|
May 29, 2007 |
NIRCam GSE CDR |
|
|
June 11-14, 2007 |
JWST Workshop |
|
Accomplishments
of Week Ending 3/6/07
1) Shipped more cable assemblies to Teledyne.
2) Outer clean room surrounding chamber to be used in pathfinder
testing is now ready, and the new port required in the vaccum chamber is being
installed.
3) Received ETU heaters which were procured using the thermal
model assuming heat switches.
4) Held MRRs for AR coatings and the DBS which resulted in JDSU
being given the go-ahead for ETU production.
5) Barr has been given the go-ahead to produce ETU filters.
6) The MRR on PIL revealed an apparent problem with the center of
curvature on some lenses. It is suspected that this a measurement problem, and
is being investigated.
NIRCam Needs (from Feb 22 MSR)
• Need PSD information and details of mirror segments for higher fidelity coronagraphic modeling
• Harness and thermal strap loads on bench and struts – needed confirm load on OBA to finalized structural analysis, to complete strut design, and perform OTM analysis on the OA to determine impact on alignment and WFE
• Resolution of intermediate thermal strapping of harnesses
• ISIM Analysis of NIRCam EOL Optics Contamination
• Resolve FPE simulator requirements
• Strut design
Ø LM needs to finish strut analysis for requirement determination. Performed for static, Need to coordinate pad motion cases for final assessment
Ø Need updated design for updated OTM analysis
• Resolution of Rogue Path
• Update NIRCam MICD
Ø ETU test cone of light keep-out zone in module A FAM mass simulator
Ø Increase volume allocation to accommodate FAM covers
Ø Resolve descrepencey from EO5 on strut pad to SIIP interface
Ø Definition of harness interface to NIRCam struts
• Update DMGSR for GSE harnesses
• NIRCam FSW needs IFSW Version 6 upgrade for ASIC Micro-code load. Our rev A plan has been showing Feb 1st, Expect NIRCam FSW 1st build delivery to be impacted
• Resolve 7 open TBXs in NIRCam IRD –INCU-1682 & INCU-1783
• Resolve open RTCs
• GSFC approval of submitted RFA Responses
ISIM Needs
|
Need |
Date Assigned |
Assigned to |
ECD |
Status |
|
KM Strut Design |
|
Scott Horner |
|
Need completed KM Requirements Document. NIRCam to complete stiffness sensitivity
analysis. Providing updated schedule
assuming requirements complete by Feb 9th. |
|
ICD update to ICE cables section |
12/25/06 |
John McCloskey, Malcolm Ferry |
3/6/07 |
In Process. Need info
from NIRCam ICE and FPE |
|
Input into EOL contamination analysis |
|
Ray LeVesque |
4/1/07 |
Need to set up meeting to discuss modeling needs |
|
Test plan for Pathfinder Singlet test and Pathfinder
triplet-beamsplitter-triplet test. |
|
Leigh Ann Rider |
TBD |
Received Singlet test plan.
Pathfinder test plan pending completion. |
|
ROM for FPE Software Simulator |
|
|
3/2/2007 |
Pending requirement definition from Art Ferrer. |
|
Provide Data on Passive Friction Device Test. |
|
Todd Kvamme |
1/30/07 |
ISIM would like to review ASAP. |
|
EM on Lens mount DU tests |
|
|
TBD |
ISIM would like this documented and available for review. |
|
ROM on mech disturbance |
|
|
TBD |
Per Rajeev |
Review RFAs (updated 3/5/07)
|
CDR RFA |
Requester |
Action Requested |
Assignee |
Status |
|
OBA RFA-3 |
John
Johnston |
Peel
& shear test, analysis of bonded joints. |
Alison
Nordt |
Awaiting
John's apporval of follow-up responses. |
|
OBA RFA-4 |
John
Johnston |
Assess MS
with FS = 1.5. |
Alison
Nordt |
Awaiting
John's apporval of follow-up responses. |
|
SLB RFA-3 |
Pam
Davila |
Worst
case clearance analysis. |
Brent
Biggs |
Complete
clearance analysis, document and present. |
|
SLB RFA-5 |
Pam
Davila |
STOP
analysis results, clearances. |
Brent
Biggs |
Complete
OTM analysis, document and present. |
|
FPA RFA-3 |
Don Hall |
Shielding
temp sensor/heater cable. |
Erick
Young |
Scott to review Erick's report.
Submitted to Don for approval. |
|
I&T-II
RFA-4 |
Bill
Eichorn |
Correlate
warm-to-cold models. |
Paul
Schweiger |
Bill
additional request for description of Pathfinder test. Draft plan in review. |
|
I&T-II
RFA-6 |
Bill
Eichorn |
Misalignments
in fwd and reverse directions. |
Paul
Schweiger |
Bill
requested analysis using wavefront optimization. Analysis in process. |
|
I&T-II
RFA-10 |
|
WFE of
ambient optics. Null lenses. |
Paul
Schweiger |
John
wants ambient WFE w/ null lenses in our Plan. Alan to respond. |
|
I&T-II
RFA-11 |
|
Define
alignment budget items. |
Paul
Schweiger |
John
wants to see the completed analysis. Alan to respond. |
|
I&T-II
RFA-14 |
|
Include
figure uncertainty in alignment. |
Paul
Schweiger |
John
wants to see the completed analysis. Alan to respond. |
|
I&T-II
RFA-15 |
|
VIRATAC
on each optical element. |
Paul
Schweiger |
John
wants to see the completed analysis. Alan to respond. |
|
SYS RFA-4 |
Pam
Davila |
Cold
triplet & DBS interferometer tests. |
Roger
Potash |
DBS done;
awaiting triplet test 3/07. |
|
SYS
RFA-15 |
Gene
Gochar |
Plan to
deliver Flight ready optics |
Roger
Potash |
2/19 Sent
Gene follow-up response addressing build list and test planning. |
|
SYS
RFA-22 |
Eugene
Waluschka |
Measure
S&P R/T for optic surfaces. |
Yalan Mao |
Yalan
conducting analyses on linearly polarized light; review on 2/27. |
|
DRD |
Title |
Status |
Due |
Comments |
|
SA-02 |
Contamination Control Plan |
Returned for changes |
9/8/2006 |
See JWST-MEMO-6835, requested for resubmittal last June. |
|
SE-04 |
Verification Plan |
GSFC Review |
3/6/2007 |
|
|
SE-10 |
Math Models |
Returned with comments |
11/8/2006 |
See JWST-MEMO-7015 regarding mechanical models only, partially rejected in August with requested resubmittal in 90 days. |
|
IT-01 |
I&T Plan |
Delivered |
ETU I&T |
|
|
FSW-01 |
FSW Product Plan |
needs update |
|
See JWST-MEMO-4063 |
|
FSW-02 |
FSW Vision Doc |
needs update |
|
See-JWST-MEMO-4210 |
|
FSW-03 |
FSW Reqts Spec |
returned w/ comments |
1/9/2007 |
Accepted with comments in mid-November with a requested update
due in 60 days (mid-January) |
|
OPS-11 |
Ops Concept |
needs update |
|
See JWST-MEMO-4518 |
|
PM-01 |
Proj Mgmt Plan |
approved |
|
|
|
SI-09 |
K-Mounts Reqts |
returned w/comments |
12/31/2006 |
accepted with comments in late November with a requested update
due in 30 days. |
|
SE-01 |
Sys Engr Plan |
approved |
|
|
|
SA-12 |
Material Usage Agreements |
approved |
|
|
Pending Changes (updated 1/12/07)
|
Mod |
CCR # |
RTC# |
Description |
Cost |
Status |
Due |
Comments |
|
tbd |
|
|
Wave 6 Cost Changes |
yes |
Tech Eval |