1 MIRI EC Meeting C/D13, Dublin, 17th to 19th September 2008

JWST Status

2 MIRI EC Meeting C/D13, Dublin, 17th to 19th September 2008

JWST Mission Status

• Across the whole observatory there is now

- A lot of FM hardware in production

- Many good test results at observatory subassembly level (the other instruments, mirror backplane, ISIM structure.....)

- Some not so good test results and “issues in work”

- So much like us

• Overall schedule to launch date is still being held

- Test programme is starting to stabilise

• Following successful Non-Advocate Review NASA is fully committed to JWST

- There is now a very large team at both GSFC and NGST

- Peak years of engineering effort and cost are now and next year !.

• First Flight Mirrors are about to start testing (after polishing)

3 MIRI EC Meeting C/D13, Dublin, 17th to 19th September 2008

Technical Areas Currently Getting a Lot of Attention

• Sunshade deployment- A special review is planned to ensure problems have been solved (tightness

of edges of sunshade affect efficiency)• Alignment of instruments to the (ISIM and) telescope and of telescope

itself- A lot of work in this area, extremely tight tolerances (microns over meters)- Detailed review of OGSE about to start.- MIRI pupil lens will be used in for in-flight measurement of pupil shear to

eliminate a possible redundancy in the alignment algorithms• Cooler Heat Loads Margins

- End to end review of current margin in all areas• Electrical Power budget for mission

- more power to the Cooler ;-) (among many changes) • Test Plans and Verification at Observatory Level

• Really big focus across the board on pushing every schedule in order to get the Observatory (FM) into end-end cryo-test as soon as possible.

4 MIRI EC Meeting C/D13, Dublin, 17th to 19th September 2008

Operations Progress and Planning (wrt MIRI)

• MIRI Proposal Planning System Template Definitions

- Draft specifications are in work

• Cross Instrument Calibration Working Group Set up

- Karl Gordon is MIRI member, looking for commonalities between instruments (dark current subtraction).

• Operations Script Development is making good progress

- Plan to test at RAL at the end of VM2

Input Details Remarks

A. Source Specification: See Table 1

B. Instrument Configuration:

Detector Specify readout region Choose from menu Filters Specify filters Choose from menu For each filter: Specify Exp. Time [per dither step]

C. Observation Implementation:

Dither? [Y/N] If “Y” Select dither pattern Choose from menu Mosaic? [Y/N] If “Y” Specify via generic form Special Requirements If “Y” Specify via generic form

5 MIRI EC Meeting C/D13, Dublin, 17th to 19th September 2008

JWST Science Working Group Activities

• A specialist working group has been set up to consider how we can best observe planetary transits

- Identify if special observatory modes are needed.

• A study is on-going to write a paper explaining the impact to science if the telescope image quality specification were to be relaxed (eg diffraction limited at 3um)

- Very bad impacts for NIRCAM and NIRSPEC sensitivity

- At the moment this is a “just in case” activity- In case the mirror cryo-polish cycles are too difficult (impossible)

- There is no mission plan to actually do this.

• Plan is to make a serious announcement to community of process for selecting first observations at the AAS meeting in January 2009.

6 MIRI EC Meeting C/D13, Dublin, 17th to 19th September 2008

Partners Workshop

7 MIRI EC Meeting C/D13, Dublin, 17th to 19th September 2008

Partners Workshop, ITAR Free Day, Monday 13th October

• Hosted by NIRSPEC in Munich , 9am- 5:30pm

• Program Progress & Status (Durning)• JWST Science Objectives (Greenhouse)• JWST Mission Overview, Observatory Overview and Mission PDR Summary (Menzel

& Arenberg)• OTE and Mirror Status (Feinberg & Texter)• ISIM Overview (Dunn)

LUNCH

• ISIM Electronics Compartment (Rashford)• Instrument Status : NIRCAM, NIRSPEC, FGS-TF, MIRI, Cooler• Observatory Verification (Lynch & Arenberg)• Integration and Launch Campaign Flow (Diaz & Jones)• Ground Segment & Operations(Johns & Sonneborn)

• Public Lecture in Deutsches Museum, and full scale model viewing in evening

• We need to get GSFC a list of MIRI participants by end of this week

8 MIRI EC Meeting C/D13, Dublin, 17th to 19th September 2008

Other Sessions of Interest to MIRI

• MIRI Science Team Meeting , Tuesday Morning

- Co-PI splinter will discuss

• Wed, 15th Mostly ITAR restricted technical discussions

- Variouis Optical Alignment and Test working groups- Martyn, Maurice, will be there see also Martyns talk

- Science Instrument Coordination with Observatory V&V team- PIs have been invited, likely to be followed by working groups and telecons

- Cooler Heat Load Margins- Paul will be there, (& ESA) see also in Bryans talk

- Various management discussions- SITS spares for FM testing for example

• Thurs, 16th - more ITAR !

- ISIM Integration and Test, and in particular Operations products and Data storage during test

- We want STScI archive in place and useable in time !!!!