NIRCam
News
February 19, 2007
Previous
editions are available in the archive.
Tuesday Telecon
Dial-in: 877-951-3250, Passcode 108321
|
Date |
Meeting Agenda |
GSFC Location |
|
Tuesday, Feb 20 11:30 EST |
Long Lead GSE CDR |
Bld 22, room C399 |
|
Tuesday, Feb 27 16:00 EST |
NIRCam ICD electrical RTC |
Bld 22, room C399 |
|
Tuesday, Mar 6 16:00 EST |
Optics |
Bld 22, room C399 |
Announcements
Agenda
for the February NIRCam Long-Lead GSE Review:
Pathfinder Testing (Feb - Aug) 69 drawings
Filler Rods CMA Structure Tooling Balls
Align Targets Insertion/Removal Tools Pivot Posts
Stick
Nudgers
Tapping
Tools Flexure
Locks
¾” Spherical Mirrors Mickey Mouse Mirrors Dial Indicators
Ø
OBA Component Level Testing (June – Aug)
18 drawings
Shipping Container Lifting Fixtures Rotation Dolly
Vibration Plate
Ø
Red Chamber Fac. prep and ringout (June – Aug)
14 drawings
Chamber Shrouds Cold Table Cryo Plumbing
Double Windows Shutters
Ø
ETU Module Level integration and alignment (Sept) 27
drawings
SMART Tool SFPA Fibers
Sources Cameras Optical Feedthroughs
Nudgers Universal Handle
NIRCam Calendar
|
Date |
Event |
Details |
|
Feb 20, 2007 |
NIRCam Long-Lead GSE Review |
|
|
Feb 22, 2007 |
NIRCam Monthly |
|
|
Feb 27-March 1, 2007 |
Fault Mgmt/ Ops / FSW |
GSFC |
|
Mar 22, 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 2/13/07
1)
Installed Teledyne's data reduction package at
2)
Reached agreement with Teledyne on analysis of read noise data from first batch
of SCAs.
3)
Held a coronagraph and cal source review at ATC.
4) Barr measured the transmitted wavefront error on a prototype
filter, and it met requirements.
NIRCam Needs (from Jan 29 MSR)
|
Need |
Date Assigned |
Assigned to |
ECD |
Status |
|
Need PSD information and details of mirror segments for higher
fidelity coronagraphic modeling |
8/31/2006 |
Mark Clampin |
12/1/2006 |
Ritva to provide delivery date, discuss at Optical Summit meeting on March 28
and 29 |
|
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 |
8/31/2006 |
John Crow |
|
in process. Need FPE
xsect info |
|
Resolution of intermediate thermal strapping of harnesses |
9/26/2006 |
Ray L |
2/13/07 |
Discussed on 2/6. ISIM to
determine who should do thermal model. |
|
ISIM analysis of NIRCam EOL contamination levels |
10/31/2006 |
Ray Levesque |
Provide schedule by 1/31/07 |
Need to set up meeting to discuss Model. |
|
Resolve FPE simulator requirements |
1/30/2007 |
Art Ferrer |
|
Art will provide further info on simulator requirements |
|
Strut design -Need to investigate more compliant flexures to reduce the bench
warping caused by ISIM pad motions -Need updated design for updated OTM analysis |
10/31/2006 |
John Crow |
|
need allowable stiffness from NIRCam team. |
|
Resolution of Rogue Path |
8/31/2006 |
Pam Davila |
|
Optical |
|
Update NIRCam MICD -ETU test cone of light keep-out zone in module A FAM mass
simulator -Increase volume allocation to accommodate FAM covers -Resolve descrepencey from EO5 on
strut pad to SIIP interface -Definition of harness interface to NIRCam struts |
Sept 2006 |
Gurnie Hobbs |
|
In process |
|
Resolve 7 open TBXs in NIRCam IRD
–INCU-1682 & INCU-1783 |
|
J. Van Campen |
|
RTCs on hold until KM design is complete. Planning Optics meeting to resolve. |
|
Resolve open RTCs |
|
J. Van Campen |
2/20/07 |
CCR-676 in process |
|
GSFC approval of submitted RFA Responses |
|
|
|
in
process |
ISIM Needs
|
Need |
Date Assigned |
Assigned to |
ECD |
Status |
|
KM Strut Design |
|
|
1/16/07 |
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 |
2/9/07 |
In Process. Need info
from NIRCam ICE and FPE |
|
FPE cable cross section dimensions for routing work |
|
|
2/6/07 |
Tony to send xsect dimensions of both
cables under consideration. |
|
Input into EOL contamination analysis |
|
|
TBD |
Need to set up meeting to discuss modeling needs |
|
Test plan for Pathfinder Singlet test and Pathfinder triplet-beamsplitter-triplet test. |
|
|
TBD |
Received Singlet test plan.
Pathfinder test plan pending completion. |
|
ROM for FPE Software Simulator |
|
|
1/31/07 |
Pending requirement definition from Art Ferrer. |
|
Provide Data on Passive Friction Device Test. |
|
|
1/30/07 |
ISIM would like to review ASAP. |
|
EM on Lens mount DU tests |
|
|
|
ISIM would like this documented and available for review. |
Review RFAs (updated 2/9/07)
|
CDR RFA |
Requester |
Action Requested |
Assignee |
Status |
ECD |
|
OBA RFA-3 |
John
Johnston |
Peel
& shear test, analysis of bonded joints. |
Alison Nordt |
Need to
respond to |
tbd |
|
OBA RFA-4 |
John
Johnston |
Assess MS
with FS = 1.5. |
Alison Nordt |
Need to
respond to |
tbd |
|
OBA RFA-8 |
Richard
Vassar |
SE to do
independent tolerance analysis |
Kevin
Bock |
Kevin
auditing NIR-EM-0152A. Kurli analyzed optic sensitivity. |
tbd |
|
SLB RFA-3 |
Pam
Davila |
Worst case
clearance analysis. |
Brent
Biggs |
Complete
clearance analysis, document and present. |
tbd |
|
SLB RFA-5 |
Pam
Davila |
STOP
analysis results, clearances. |
Brent
Biggs |
Complete
OTM analysis, document and present. |
tbd |
|
FPA RFA-3 |
Don Hall |
Shielding
temp sensor/heater cable. |
Erick
Young |
SPICE model the cable assembly to assess the coupling between thermometer/heater
leads and FPA cable inside the housing. |
tbd |
|
I&T-II
RFA-4 |
Bill Eichorn |
Correlate
warm-to-cold models. |
Paul Schweiger |
Bill
additional request for description of Pathfinder test. |
tbd |
|
I&T-II
RFA-6 |
Bill Eichorn |
Misalignments
in fwd and reverse directions. |
Paul Schweiger |
Bill
requested analysis using wavefront optimization. |
tbd |
|
I&T-II
RFA-10 |
John Hagopian |
WFE of
ambient optics. Null lenses. |
Paul Schweiger |
John
wants ambient WFE w/ null lenses in our Plan. Alan to respond. |
Jan-07 |
|
I&T-II
RFA-11 |
John Hagopian |
Define
alignment budget items. |
Paul Schweiger |
John
wants to see the completed analysis. Alan to respond. |
Jan-07 |
|
I&T-II
RFA-14 |
John Hagopian |
Include
figure uncertainty in alignment. |
Paul Schweiger |
John
wants to see the completed analysis. Alan to respond. |
Jan-07 |
|
I&T-II
RFA-15 |
John Hagopian |
VIRATAC
on each optical element. |
Paul Schweiger |
John
wants to see the completed analysis. Alan to respond. |
Jan-07 |
|
SYS RFA-4 |
Pam
Davila |
Cold
triplet & DBS interferometer tests. |
Roger
Potash |
DBS done;
awaiting triplet test. |
March, 2007 |
|
SYS
RFA-13 |
Tom
McCarthy |
Why not 4
TV cycles? Margins? |
Roger
Potash |
Closed. |
tbd |
|
SYS
RFA-15 |
Gene
Gochar |
Plan to
deliver Flight ready optics |
Todd Kvamme |
Awaiting
Gene's approval of submitted response. |
tbd |
|
SYS
RFA-22 |
Eugene Waluschka |
Measure
S&P R/T for optic surfaces. |
Yalan Mao |
Yalan conducted ray trace analysis; needs |
31-Jan-07 |
Document Status
|
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 |
Disapproved |
11/8/2006 |
See JWST-MEMO-6957 |
|
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 |
|
|
Pending Changes (updated 1/12/07)
|
Mod |
CCR # |
RTC# |
Description |
Cost |
Status |
Due |
Comments |
|
tbd |
|
|
Wave 6 Cost Changes |
yes |
Tech Eval |
|
|
|
|
543 |
|
NIRCam SOW Rev F |
yes |
Complete |
|
|
|
tbd |
|
|
Wave 7 Changes |
|
|
|
|
|
|
593 |
|
ETU Spec |
|
Complete |
|
|
|
|
|
|
IRD Rev G (Final Rev for ETU) |
yes |
CCR |
|
|
|
|
676 |
34J |
Outgassing Rate |
|
CCR |
1/15/07 |
|
|
|
676 |
56G |
Electrical Changes |
|
CCR |
1/15/07 |
|
|
|
676 |
66A |
Grounding |
|
CCR |
1/15/07 |
|
|
|
676 |
68C |
ICE Sync Changes |
|
CCR |
1/15/07 |
|
|
|
676 |
70B |
ICP A |
|
CCR |
1/15/07 |
|
|
|
676 |
71H |
Struts |
|
CCR |
1/15/07 |
|
|
|
676 |
73A |
Telemetry Rate TBRs |
|
CCR |
1/15/07 |
|
|
|
676 |
74D |
MIPS |
|
CCR |
1/15/07 |
|
|
|
676 |
76B |
FSW Data Rate |
|
CCR |
1/15/07 |
|
|
|
676 |
78D |
Longwave Grism |
|
CCR |
1/15/07 |
|
|
|
676 |
79E |
FSW Changes |
|
CCR |
1/15/07 |
Revision to be submitted to existing CCR |
|
|
676 |
81C |
Static Envelope |
|
CCR |
1/15/07 |
|
|
|
676 |
82B |
Fuse Blow Transient |
|
CCR |
1/15/07 |
|
|
|
676 |
87B |
Post CDR Thermal Updates 2 |
|
CCR |
1/15/07 |
|
|
|
676 |
88A |
WFS-DHS Positioning |
|
CCR |
1/15/07 |
|
|
|
676 |
89D |
EMC |
|
CCR |
1/15/07 |
|
|
|
676 |
90A |
Harness Update |
|
CCR |
1/15/07 |
|
|
|
676 |
91A |
Surface Cleanliness |
|
CCR |
1/15/07 |
|
|
|
676 |
92C |
LVDS Signals |
|
CCR |
1/15/07 |
|
|
|
676 |
93A |
Voltage Ripple |
|
CCR |
1/15/07 |
|
|
|
676 |
94B |
WFS Filters |
|
CCR |
1/15/07 |
|
|
|
676 |
096A |
Misc Updates |
|
CCR |
1/15/07 |
|
|
|
676 |
097A |
ICE Box Envelope |
|
CCR Comment/walk-on RTC |
1/15/07 |
|
|
|
|
|
Wave 8 Changes |
|
|
|
|
|
|
|
|
IRD Rev H |
|
|
|
|
|
|
|
65A |
FOV Changes |
|
|
|
Discuss Optical |
|
|
|
67B |
Alignment Changes |
|
|
|
Pending NIRCam response and KM analysis. |
ISIM Level NIRCam Risks (updated 1/3/07)
|
Number |
Title |
Impact |
Likelihood |
Rating |
|
NIRCam-32 |
NIRCam Lens Mounts |
C |
A |
Low |
|
NIRCam-138 |
NIRCam Wavefront Error (low/mid/high sf)
|
D |
B |
Medium |
|
NIRCam-143 |
NIRCam Optical Transmission |
C |
B |
Low |
|
NIRCam-191 |
NIRCam Detector BCS Failures |
C |
A |
Low |
|
NIRCam-250 |
NIRCam Region 1 Heat Transfer |
B |
C |
Medium |
|
NIRCam-251 |
NIRCam Optical Alignment |
C |
B |
Low |
|
NIRCam -280 |
Extra Module-level cryotest with FPAs
integrated |
|
|
|
NIRCam Level NIRCam Risks (updated with 1/29/07 MSR)
|
Acronym List |
|
|
ASIC |
Application-Specific Integrated Circuit |
|
ASMIF |
Ambient Science Instrument Mechanical Interface Fixture |
|
BCS |
Balance Composite Structure |
|
CCDH |
Common Command & Data Handling |
|
CMLB |
Ceramic Multi-Layer Board |
|
CPT |
Comprehensive Performance Test |
|
DBS |
Dichroic Beam Splitter |
|
DHS |
Dispersed Hartmann Sensor |
|
EEE |
Electrical, Electronic, and Electromechanical (Parts) |
|
EOL |
End-of-life |
|
ETU |
Engineering Test Unit |
|
FOV |
Field of View |
|
FPA |
Focal Plane Assembly |
|
FPE |
Focal Plane Electronics |
|
FSW |
Flight Software |
|
GSFC |
|
|
GSE |
Ground Support Equipment |
|
I&T |
Integration & Test |
|
ICD |
Interface Control Document |
|
ICE |
Instrument Control Electronics |
|
ICP |
Interconnect Panel |
|
IRD |
Interface Requirements Document |
|
IOS |
ISIM-to-OTE-and-Spacecraft |
|
ISIM |
Integrated Science Instrument Module |
|
KM |
Kinematic Mount |
|
MIPS |
Million Instructions Per Second |
|
MRR |
Manufacturing Readiness Review |
|
NGIN |
Next Generation Integrated Network |
|
OA |
Optics Assembly |
|
OBA |
Optical Bench Assy |
|
OOB |
Out of Band |
|
OTE |
Optical Telescope Element |
|
PAR |
Pupil Alignment Reference |
|
PDR |
Preliminary Design Review |
|
PFD |
Passive Friction Device |
|
PIL |
Pupil Imaging Lens |
|
PSD |
Power Spectral Density |
|
RFA |
Request for Action |
|
RTC |
Request for Technical Coordination |
|
Rx |
Prescription |
|
SCA |
Sensor Chip Assembly |
|
SOW |
Statement of Work |
|
STOP |
Structural, Thermal, Optical (Analysis) |
|
SWG |
Science Working Group |
|
TBR |
To Be Reviewed |
|
TIMs |
Technical Interchange Meeting |
|
T-NAR |
Technology Non-Advocate Review |
|
TV |
Thermal Vacuum |
|
UPS |
Uninterruptible Power Supply |
|
WFE |
Wavefront Error |
|
WFS |
Wavefront Sensing |