NIRCam News
January 22, 2007
Previous editions are available in the archive.

Tuesday Telecon

Dial-in: 877-951-3250, Passcode 108321

Date	Meeting Agenda	GSFC Location
Tuesday, Jan 23 16:00 EST	Electrical RTCs to ICD NIRCam MICD EO8 Review	Bld 22, room C399
Thursday, Jan 25 11:00 EST	KM structural analysis approach	Bld 22, room 398
Tuesday, Jan 30 16:00 EST	Mechanism Micro-dynamics Measurement and NIRCam MICD EO8 Review	Bld 22, room C365
Tuesday, Feb 7 16:00 EST	TBD	Bld 22, room C399

Announcements

Stay tuned for an agenda for the February NIRCam Long-Lead GSE Review.

NIRCam Calendar

Date	Event	Details
1/29/07 Time: 2 pm EST	NIRCam Monthly	GSFC, Bld 22 Rm 399
Jan 30-31, 2007	JWST T-NAR	GSFC
Feb 8, 2007	FOV Discussion	Ball, Boulder Co
Feb 15, 2007	NIRCam Long-Lead GSE Review	Palo Alto
Feb 22, 2007	NIRCam Monthly	Camarillo
Feb 28-30, 2007	Fault Mgmt/ Ops / FSW Summit	GSFC
Mar 22, 2007	NIRCam Monthly	Palo Alto
Mar 28-29, 2007	Optics Summit	Greenbelt, NGST ECO
Apr 26, 2007	NIRCam Monthly	Palo Alto
May 22, 2007	NIRCam Monthly	Palo Alto
May 29, 2007	NIRCam GSE CDR	Palo Alto
June 11-14, 2007	JWST Workshop	Dublin, Ireland

Accomplishments of Week Ending 1/16/07

1) Singlet lens mounting issue is almost completely resolved. A

Test Readiness Review was held which covered the modified mount

and procedure (0.5mm gap at bottom of mount was removed, order

of tightnening bolts revised, and a different torque wrench has

been selected) with intent of proceeding with mounting and testing

this week.

2) Analysis of data on the passive friction device shows no

torque increase between room temperature and cryo. Position

repeatability test will be performed in early Feb.

3) Filter wheel assembly was the subject of an internal review

and the revised design now passes both the 1^st freq spec and the

design limit loads on the mounting flexures.

4) Closure has not been reached with Barr on how to measure the

transmitted wavefront error and telecons are being held every day to

resolve this issue.

NIRCam Needs (from Dec 19 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
Changes to SIIP/Strut pad dimensions	10/31/2006	John Crow		Issue resolved – ICD change in work
Any changes to PAR?	10/31/2006	Pam Davila		work between B. Bos and S. Somerstein ongoing.
Harness and thermal strap loads on bench & struts	8/31/2006	John Crow		in process. Need FPE xsect info
ISIM CCDH FSW Rev 6.0 installed on SIDU including Spacewire interface and function call for ASIC micro-codes	8/31/2006	Mark Voyton		Not until Jan 2007. Scott Lambros to discuss with Pam S.
Resolution of Rogue Path	8/31/2006	Pam Davila		Optical Summit meeting on March 28 and 29
Resolve open TBXs in IRD & ISIM Reqs Doc	8/31/2006	Julie		See RTC list below
Resolve open RTCs in IRD, ISIM Reqts, ICD	8/31/2006	Julie		See RTC list below
Define intermediate thermal stationing of harnesses	9/26/2006	Ray L	2/13/07	Need to schedule meeting to discuss thermal budget of ICE harnesses.
Clarify workmanship vibe levels	9/26/2006	John Crow		complete
ISIM analysis of NIRCam EOL contamination levels	10/31/2006	Ray Levesque	Provide schedule by 1/31/07	Pending further inputs from NIRCam. JVC has tentative schedule.
Envelope Notch for ETU cones of light	10/31/2006	John Crow	Review EO8 on 1/16/07	notch identified – need ICD change
KM Strut Design	10/31/2006	John Crow		need allowable forces/moments from NIRCam team. NIRCam needs schedule in Project format.

ISIM Needs

Need	Date Assigned	Assigned to	ECD	Status
KM Strut Design			1/16/07	Need completed KM Requirements Document , Scott to talk to J. Crow and J. Johnston on Design Methology.
Step file of FPE ICP on bench				Closed
Step file of ICE box (to add this to the MICD)				Closed
ICD update to ICE cables section	12/25/06	Shaune Allen	1/23/07	In Process, Next meeting on Jan 23.
FPE cable cross section dimensions for routing work			1/23/07	Tony to send xsect dimensions of both cables under consideration.
Input into EOL contamination analysis				To be defined by Ray LeVesque
Test plan for Pathfinder Singlet test and Pathfinder triplet-beamsplitter-triplet test.			1/16/07	GSFC would like to review the test plan for the Singlet and for the pathfinder test prior to the tests. Scott will make these plans EMs.
ROM for FPE Software Simulator			1/31/07	Scott L. to talk with Marcia
SITS to SWTS2 upgrade			1/31/07	Scott L. to discuss with Pam.
Step file of ICE Box			1/23/07	NIRCam to provide for use in IEC model.
Provide Data on Passive Friction Device Test.			1/23/07	ISIM would like to review.

Review RFAs (updated 1/19/07)

CDR RFA	Requester	Action Requested	Assignee	Status	ECD
OBA RFA-3	John Johnston	Peel & shear test, analysis of bonded joints.	Alison Nordt	Alison preparing response to John's review questions.	Aug-06
OBA RFA-4	John Johnston	Assess MS with FS = 1.5.	Alison Nordt	Alison preparing response to John's review questions.	Aug-06
OBA RFA-8	Richard Vassar	SE to do independent tolerance analysis	Kevin Bock	Kevin auditing NIR-EM-0152A. Kurli analyzed optic sensitivity.	Dec-06
SLB RFA-3	Pam Davila	Worst case clearance analysis.	Brent Biggs	Complete clearance analysis, document and present.	Sep-06
SLB RFA-5	Pam Davila	STOP analysis results, clearances.	Brent Biggs	Complete OTM analysis, document and present.	Sep-06
FPA RFA-3	Don Hall	Shielding temp sensor/heater cable.	Erick Young	Build a simplified SPICE model of the cable assembly to assess the coupling between the thermometer/heater leads and the FPA cable inside the housing.	Jul-06
I&T-II RFA-4	Bill Eichorn	Correlate warm-to-cold models.	Paul Schweiger	Bill additional request for description of Pathfinder test.