TIPS-JIM Meeting
19 April 2007, 10am, Auditorium
1.
INS Division News
Jerry Kriss
2.
Results of the Cycle 16 HST Peer Review
Brett Blacker
3.
ACS/WFC Geometric Distortion and CTE
Vera Kozhurina-Platais
4.
JWST FGS-Guider Critical Design Review
Pierre Chayer
Next TIPS Meeting will be held on 17 May 2007.
TIPS-JIM Meeting
19 April 2007, 10am, Auditorium
1.
INS Division News
Jerry Kriss
2.
Results of the Cycle 16 HST Peer Review
Brett Blacker
3.
ACS/WFC Geometric Distortion and CTE
Vera Kozhurina-Platais
4.
JWST FGS-Guider Critical Design Review
Pierre Chayer
Next TIPS Meeting will be held on 17 May 2007.
Cycle 16 Results
Summary from the
Science Policies Division
of the Panel/TAC
Deliberations
04/19/2007
Cycle 16 Director's Review
Executive Summary
•
•
•
•
•
•
GO Acceptance Rate: ~1/4.5 for proposals and ~1/5.6 for orbits
SNAP Acceptance rate: 1/5 for proposals and ~1/4 for targets
Regular AR Acceptance rate: 1/3.4 for proposals and 1/3.7 for $
Theory Acceptance rate: 1/3.6 for proposals and ~1/3 for $
AR Legacy Acceptance rate: 1/2.7 for proposals and ~1/4 for $
Acceptance rate approximately the same independent of size.
•
Slight dip in the 30-40 & 50-99 orbit bins
•
•
27% of program awarded to Large/Treasury Programs.
•
ESA acceptance fraction 13% for proposals and 12.6% for orbits
Instrument breakdown for GO Programs: ACS/SBC (11.6%), NICMOS
(41%), WFPC2 (41%), FGS (6.4%)
04/19/2007
Cycle 16 Director's Review
4
Executive Summary Continued
• Chandra: 3 out of 12 proposals, or 89 ksecs out of 703
•
•
•
•
•
•
•
submitted
NOAO: No time awarded (Once again)
Spitzer: 4 out of 20 proposals, or 203 hours out of 635
submitted
Calibration: 5 proposals approved for 2 orbits/$477K
ToO’s: 1 fast (< 2 week) + 14 other activations
1 Pure Parallel program awarded time (only 1 submitted)
Once again very few future cycle orbits allocated
No Survey Programs approved
04/19/2007
Cycle 16 Director's Review
5
Summary Results
04/19/2007
Cycle 16 Director's Review
6
•
Cycle 16 Program Assessment
Science assessment
•
Comments from TAC Chair
•“In part because of the extreme proposal pressure...the decisions
and cuts were decidedly painful. “
•“…. I came away from the review with the strong conviction that HST
continues to do cutting edge and potentially transformative science,
in spite of its longevity - or perhaps because of it - because over
those same 16 cycles, astrophysics has itself changed dramatically
(in part due to HST)….”
•
•
Panel Chairs would strongly support extending panel allocations by
30-40% without further review
Do we need a supplemental call?
•
•
Cycle 16 (as is) is almost fully subscribed
1-2 month slip in SM4 (300-600 orbits) can be easily accommodated
by promoting Cycle 16 proposals
•We propose issuing a supplemental call only if SM4 slips
to 2009
04/19/2007
Cycle 16 Director's Review
7
GO Instrument Summary
04/19/2007
Cycle 16 Director's Review
8
Over-subscription by Cycle
Approved Orbits and Proposals
by Cycle
Acceptance Fraction by Size
ESA Acceptance Fraction
04/19/2007
Cycle 16 Director's Review
12
Approved PI Institutions
orbs & props
04/19/2007
Cycle 16 Director's Review
13
Institutional Acceptance Fraction
04/19/2007
Cycle 16 Director's Review
14
Orbit Size by Cycle
Calibration Proposals
• 6 Proposals Submitted:
• 1 GOs for 2 prime orbits
• Approved as requested:
Bob O’Dell, Vanderbilt University, Calibration
of the WFPC2 HeII and [SII] Filters
• 5 ARs for $477K
• 4 Approved for $379K
• Bernard McNamara, New Mexico State University, Establishing a Zero Motion Reference
•
•
Frame for the FGS
Rolf Jansen, Arizona State University, Removing the herring-bone pattern-noise from
*all* STIS Side-2 CCD data: a factor ~3 enhancement in sensitivity
Bob O’Dell, Vanderbilt University, A Final Calibration of the Primary WFPC2 EmissionLine Filters Using the Orion Nebula
• Andrew Dolphin, Raytheon, WFPC2 CTE and Photometric Zero Points
04/19/2007
Cycle 16 Director's Review
16
Chandra Coordinated Proposals
• 12 GO Proposals were submitted for 404 HST Orbits
and 703 ksecs of Chandra time.
• 3 were approved for 33 HST Orbits and 89 ksecs of
Chandra time
• Hartmann
• Biretta
• Herczeg
04/19/2007
A Hard Look at Stellar Disks at the Epoch of Planet
Formation (6 HST Orbits and 40 Chandra Ksecs)
Monitoring the Giant Flare of HST-1 in the M87 Jet (9
HST Orbits and 35 Chandra Ksecs)
Evaluating the Role of Photoevaporation of
Protoplanetary Disk Dispersal (18 HST Orbits and 14
Chandra Ksecs)
Cycle 16 Director's Review
17
NOAO Coordinated Proposals
• 8 GO Proposals were submitted for 358 HST
Orbits and 32 NOAO nights
• None approved
04/19/2007
Cycle 16 Director's Review
18
Spitzer Coordinated Proposals
•
20 GO Proposals were submitted for 1031 HST Orbits and 635.2
Spitzer hours
• The 5 Large HST-Spitzer Coordinated programs were discussed by the HST
•
TAC. 2 were approved as noted in bold text below and the other 3 all
ended up in the 3rd quartile.
4 Joint Proposals were approved for 300 HST Orbits and 203.1 Spitzer hours
• Egami Characterizing the Stellar Populations in Lyman-Alpha Emitters and Lyman Break
•
•
•
Galaxies at 5.7<z<7 in the Subaru Deep Field (72 HST Orbits/102 Spitzer Hours)
Malhotra The Physical Nature and Age of Lyman Alpha Galaxies (44 HST Orbits/20 Spitzer
Hours)
Meixner SEEDS: The Search for Evolution of Emission from Dust in Supernovae with HST
and Spitzer (34 HST Orbits & 16 Spitzer Hours)
Yan Revealing the Physical Nature of Infrared Luminous Galaxies at 0.3<z<2.7 Using HST
and Spitzer (150 HST Orbits and 65 Spitzer Hours)
04/19/2007
Cycle 16 Director's Review
19
Future Cycle Allocations
• 53 Orbits allocated to Cycle 17 from 4
proposals
• 12 Orbits allocated to Cycle 18 from 1
proposals
04/19/2007
Cycle 16 Director's Review
20
Targets of Opportunity
04/19/2007
Cycle 16 Director's Review
21
Countries of PIs
04/19/2007
Cycle 16 Director's Review
22
States of PIs
04/19/2007
Cycle 16 Director's Review
23
04/19/2007
Cycle 16 Director's Review
Cycle 16/17 boundaries
•SM4 is scheduled for September 2008
•
•
•
SM4 complete by late September 2008
SMOV during October 2008
HST available for observations ~November 2008 (WFC3 ~Dec 2008?)
•Cycle 16/17 boundary will be set at SM4
•
Avoid multiple instrument suites during a cycle
•
•
•
•
•
CP17 release – 1 December 2007
Proposal deadline – ~1 March 2008 (2 weeks before Chandra)
HST TAC meets – May 12-16 2008
Phase II reviews – July/August 2008 (pre-SM4)
Cycle 17 ends December 31 2009
•
Calendar balances (internal STScI) workload for proposal
implementation & SM4/SMOV
•Proposed Cycle 17 schedule (still not formally finalised)
•Revised schedule
04/19/2007
Cycle 16 Director's Review
27
TIPS-JIM Meeting
19 April 2007, 10am, Auditorium
1.
INS Division News
Jerry Kriss
2.
Results of the Cycle 16 HST Peer Review
Brett Blacker
3.
ACS/WFC Geometric Distortion and CTE
Vera Kozhurina-Platais
4.
JWST FGS-Guider Critical Design Review
Pierre Chayer
Next TIPS Meeting will be held on 17 May 2007.
ACS/WFC
Geometric Distortion and CTE
V. Kozhurina-Platais & ACS team
ACS/WFC geometric distortion is changing linearly with time
Anderson J., ISR-ACS/WFC , August 2006
a) Standard astrometric reference field (47Tuc) ~ 53,000 stars
b) User friendly software - XYM2MAT
Our plan was to:
a) Check the time-dependency on FLT images;
b) Implement the time dependency in MultiDrizzle
c) Verify the implementation
The observations of 47Tuc
• F606W
filter
• 2002-2006 (PIP-9018-10771)
• different orientations
• different postargs
• different exposures: 22 - 1200s
The reductions:
• effective
PSF fitting on FLT - X,Y mag;
• standard frame: 2002 March, 690s, F606W,θ=-163°
Kiselev A.A, 1989, pub.,”Nauka”, St.Petersburg, Russia
Ouv - standard orthogonal system
MXY - measured system
Y
v
θ
 u  AB  X − X o   uo 
  =  
+ 
v  CDY − Y o  vo 
Y
vo
u
B
tgθ =
D
Yo
O
uo
€
M
θ
Xo
X
X
90
€
A
tg(θ + γ ) = −
C
A⋅ B+ C ⋅D
tgγ = −
A⋅D−C ⋅ B
720 s , θ =-163°.2
2002.4
22 s , θ = -122°.9
2004.5
22 s , θ =- -23°.9
2004.7
22 s , θ = -67°.8
2005.0
22 s , θ = -117°.9
2002.4
22 s, θ = 51°.9
2005.9
The skew term as
 A ⋅ B + C ⋅ D
γ = arctan−

 A ⋅ D − C ⋅ B
α = 0.095 + 0.090 ⋅ (date − 2004.5)/2.5
β = −0.029 − 0.030 ⋅ (date − 2004.5)/2.5
€
f x = (Xc − 2048) 2048
f y = (Yc − 2048) 2048
€
Xo = fx + β ⋅ fx + α ⋅ fy
Yo = f y + β ⋅ f y + α ⋅ f x
€
Many variables:
• exposure
• pointing
• orientation
• epoch
PID - 10368:
•
•
•
The same pointing
Exposures - 400s, 30s
Two orientations : +154.8, -29.4
400sec--> 400sec, 154.7-> 154.7
LAMP=OFF/OFF
400sec--> 400sec, 154.7-> -29.4
LAMP=OFF/OFF
30sec--> 400sec, 154.7-> 154.7
LAMP=OFF/OFF
30sec--> 400sec, 154.7-> 154.7
LAMP=MED/OFF
30sec--> 400sec, 154.7-> 154.7
LAMP=HIGH/OFF
30sec--> 400sec, -29.4->-29.4
LAMP=LOW/OFF
Schematic illustration of the WFC1 and WFC2 plane:
- Red arrows show the readout direction
- Green color shows the PSF profile affected by CTE
Conclusions
♦ The CTE-induced centroid shift depends on:
magnitude of a star
position on a CCD chip
sky background
♦ The amplitude of CTE-induced centroid shift is ~ 0.1 pix
♦ CTE effect leads to a discontinuity in the reference frame
♦ Accounting for CTE effect is critical to reach a 1 mas
accuracy requirement for JWST standard astrometric field
TIPS-JIM Meeting
19 April 2007, 10am, Auditorium
1.
INS Division News
Jerry Kriss
2.
Results of the Cycle 16 HST Peer Review
Brett Blacker
3.
ACS/WFC Geometric Distortion and CTE
Vera Kozhurina-Platais
4.
JWST FGS-Guider Critical Design Review
Pierre Chayer
Next TIPS Meeting will be held on 17 May 2007.
JWST FGS
FGS Guider
Critical Design Review
FGS Guider CDR – April 19, 2007
© Copyright 2007 Her Majesty the Queen in Right of Canada
Subject to Controlled Goods Regulations of Canada
Pierre Chayer (HIA/STScI)
March 14th & 15th 2007
COM DEV Ottawa
303 Terry Fox Drive
Kanata, ON, K2K 3J1
44
FGS-Guider CDR
•
•
•
•
•
The Critical Design Review (CDR) is a presentation of the detailed
instrument system design.
CDR allows for the final FGS requirements, resource allocations,
verification plans, and detailed designs to be presented, discussed,
modified (if necessary) and approved.
CDR discloses the complete system design in full detail.
CDR ascertains that technical problems and design anomalies have
been resolved.
CDR ensures that the design maturity justifies the decision to initiate
Flight Unit fabrication, integration and verification of mission
hardware and software.
FGS Guider CDR – April 19th, 2007
© Copyright 2006 Her Majesty the Queen in Right of Canada
Subject to Controlled Goods Regulations of Canada
45
FGS-Guider CDR Agenda (Day 1)
E1
E2
E3
01
02
03
04
05
06
06
GUIDER CDR AGENDA
TOPIC
Arrival
Introduction
FGS Science background
Guider Operations & Constraints
CDR Agenda & Programmatic
Baseline & Assumptions for CDR
Non-compliance statement
PA
PA Presentation
04A
Requirements, Reliability, Parts, M&P, Contamination
04B Guider Radiation Analysis
BREAK
Guider Architecture
Region 2 Electronics
06A Region 2 Electronics - Electrical Design Overview
06D
06E
06F
06G
07
N/A
DAY2
TIME
DAY 3
D. Provencal
J. Hutchings
P. Chayer
M. Lihou
I. Barnard
G. Richardson
P. Woods
7:45
8:00
8:10
8:20
8:40
9:00
9:20
9:35
10
10
20
20
20
15
45
P. Woods
9:35
30
H. Rufenacht / K. Man
N. Rowlands
A. Csizmar/D. Henry
D. Henry
10:05
10:20
10:30
11:30
11:30
15
10
60
8236
45
8237
12:15
13:00
13:00
13:15
13:55
45
A. Csizmar/D. Henry
D. Henry
P. Kenyon
D. Henry
BREAK
Region 2 Electronics (Cont'd)
Focus Housekeeping Board
SIDECAR Control Electronics Board
Power Control Unit
System Level EMC Analysis
14:40
14:50
14:50
15:35
16:20
16:50
10
A. Csizmar/D. Henry
D. Henry
E. Hartwig
J. Metcalf
K. Man
45
45
30
30
8240
8241
8242
8243
BREAK
Assembly, Integration & Test Status
CDR Board Meeting
G. Reis
D. Provencal
17:20
17:30
18:15
10
45
15
8244
LUNCH
Region 2 Electronics Cont'd
06A Region 2 Electronics - Electrical Design Overview (Cont.)
06B Structural & Thermal Analysis
06C SpaceWire Board
06
DAY 1
PRESENTER
FGS Guider CDR – April 19th, 2007
© Copyright 2006 Her Majesty the Queen in Right of Canada
Subject to Controlled Goods Regulations of Canada
15
40
45
8228
8229
8230
8231
8232
8233
8234
8239
46
FGS-Guider CDR Agenda (Day 2)
08
08A
08B
08C
08D
08E
08
08F
08G
08H
08
08K
08J
08L
08M
08N
E4
09
9A
9B
10
11
12
13
14
N/A
Guider Optical Assembly
Overview / OA Layout
Optical Design and Analysis
Stray Light Control Design & Analysis
Structural Analysis
Thermal Analysis
BREAK
Guider Optical Assembly (Cont'd)
STOP Analysis
Optical Bench Assembly
Relay TMA (Design & Analysis)
LUNCH
Guider Optical Assembly (Cont'd)
Fine Focus Mechanism
Guider Detector Assembly
FPA and SIDECAR Status
Guider Calibration Source
FGS Alignment (AIT)
Unit Level Cryogenic Facilities at DFL
BREAK
Guider Performance (NEA)
Guider Performance (NEA)
Guider Performance (ID/ACQ)
Margin Summary
Verification
Software Status
Harness Design Status
TFI Design Status
CDR Board Meeting
FGS Guider CDR – April 19th, 2007
© Copyright 2006 Her Majesty the Queen in Right of Canada
Subject to Controlled Goods Regulations of Canada
A. McColgan
A. McColgan
C. Evans
E. Greenberg
A. McColgan
D. Aldridge
A. McColgan
A. McColgan
P. Cameron
D. Aldridge
A. McColgan
L. Richards
D. Aldridge
D. Gulbransen
N. Rowlands
C. Evans
R. Leblanc
N. Rowlands
N. Rowlands
H. Rufenacht
G. Richardson
H. Rufenacht
J. Zhou
W. Lunscher
N. Rowlands
D. Provencal
8:00
8:00
8:25
8:50
9:05
10:05
10:25
10:35
10:35
11:05
11:25
11:45
13:00
13:00
13:45
14:00
14:20
14:35
14:50
15:05
15:15
15:15
16:05
16:45
17:05
17:20
17:30
17:40
17:50
n/a
25
25
15
60
20
10
8246
8247
8248
8249
8250
30
20
20
8251
8252
8253
n/a
45
15
20
15
15
15
10
8255
8254
8256
8257
8258
8245
50
40
20
15
10
10
10
TBD
8259
8260
8261
8262
8263
8264
8265
47
FGS-Guider Operations
FGS Guider CDR – April 19th, 2007
© Copyright 2006 Her Majesty the Queen in Right of Canada
Subject to Controlled Goods Regulations of Canada
48
Identification: Guide Star Recognition
2048 pixels (2.3 ')
FGS FOV
2048 pixels
(2.3 ')
guide star
full frame readout, pattern match of observed stars to
uplinked reference stars to identify guide star.
FGS Guider CDR – April 19th, 2007
© Copyright 2006 Her Majesty the Queen in Right of Canada
Subject to Controlled Goods Regulations of Canada
49
FGS-Guider Optical Layout
Pick-off mirror
Focus
mirror
TMA
Detector
2m
100 mm
FGS Guider CDR – April 19th, 2007
© Copyright 2006 Her Majesty the Queen in Right of Canada
Subject to Controlled Goods Regulations of Canada
50
FGS Optical Assembly - Guider Side
FGS Guider CDR – April 19th, 2007
© Copyright 2006 Her Majesty the Queen in Right of Canada
Subject to Controlled Goods Regulations of Canada
51
FGS Optical Assembly - With Baffles
Guider Plan View
FGS Guider CDR – April 19th, 2007
© Copyright 2006 Her Majesty the Queen in Right of Canada
Subject to Controlled Goods Regulations of Canada
52
FGS in the ISIM Structural Context
MIRI
NIRCam
FGS-TFI
FGS-Guider
NIRSpec
FGS Guider CDR – April 19th, 2007
© Copyright 2006 Her Majesty the Queen in Right of Canada
Subject to Controlled Goods Regulations of Canada
53
Main Bench Design Features
2 mm thick ribs,
90mm deep
4 mm thick sidewalls,
110mm deep
Higher density rib
pattern
Hardpoints added
for MGSE
Thermal strap wall
6mm thick
KM mounting pad
thickness increased
to 21mm
Guider POM
deck raised
FGS Guider CDR – April 19th, 2007
Structure added to bolster
KM2 – KM3 span
© Copyright 2006 Her Majesty the Queen in Right of Canada
Subject to Controlled Goods Regulations of Canada
54
Thermal Analysis: Cold Steady State
Cold Case:
Requirement Tested:
•Detector absolute temperature below 41 K
Boundary Conditions:
•ISIM Conductive temperature = 30.0 K
•Radiative Environment = 32K, ε =0.01
•Heat strap interface temperature = 30.0 K
•Steady State Heat Loads
Results
•Maximum detector temperatures (30.440 K) are well below the requirement.
•Gradient in the optical bench is 0. 225 K
FGS Guider CDR – April 19th, 2007
© Copyright 2006 Her Majesty the Queen in Right of Canada
Subject to Controlled Goods Regulations of Canada
55
FGS Identification Timing Budget
•
•
•
•
Identification duration is dominated by the readout time for the double read
• Double read = reset-read-reset-read, allows Cosmic Ray hits to be filtered out.
As per agreement post-ISIM PDR, FGS allocation of 45 sec applies to readout time only
FGS & ISIM collaborate on overall timing estimate for ISIM allocation of 60 seconds
ID duration estimate is compliant at the ISIM level (< 60 secs per ID attempt, ISIM-266)
Contributor
FGS FSW Command
Item Duration
(seconds)
Total Duration
(seconds)
SP / ICDH
ID & SCE Setup Commands
3.648
3.648
Includes first start exposure command
FGS
Strip Readout Duration
1.357
46.33
Double Read: 34 strips (4 pixel overlap assumed)
FGS Requirement (SRD154)
FGS/ ICDH
Strip Data Transfer Time
0.95
FGS FSW
Last Strip Image Processing
0.775
0.775
Only the last strip image processing time adds to the
total
FGS FSW
Identification Algorithm
7.198
7.198
Algorithm assumes 50 bright objects & 30 triads
SP / ICDH
FGS & ICDH Clean up
commands
0.512
0.512
Total
FGS Guider CDR – April 19th, 2007
© Copyright 2006 Her Majesty the Queen in Right of Canada
Subject to Controlled Goods Regulations of Canada
Note
Does not contribute – shorter than readout
58.46
Requirement at ISIM level is < 60 seconds
56
Non-Compliance Statement
•
SRD154
• Requirement text - The total time for an identification image to be
collected, plus execution of the identification algorithm shall be 45
seconds or less (per attempt)
• Traced from – IPFR requirement FGS237
• Status – The estimated duration is 46.33 s
• Discussion – Excess duration is due to need for double detector read to
mitigate SEU. See Section 09B of this package for further details. It has
been agreed that the requirement should be against the readout time
only
• Proposed resolution – Raise Class 1 ECN to remove algorithm
execution time from requirement. Discuss with CSA and NASA and
come to a consensus on path forward on residual non-compliance.
Likely acceptable as is
FGS Guider CDR – April 19th, 2007
© Copyright 2006 Her Majesty the Queen in Right of Canada
Subject to Controlled Goods Regulations of Canada
57
Pack and Ship
June 2009
FGS Guider CDR – April 19th, 2007
© Copyright 2006 Her Majesty the Queen in Right of Canada
Subject to Controlled Goods Regulations of Canada
58
TIPS-JIM Meeting
19 April 2007, 10am, Auditorium
1.
INS Division News
Jerry Kriss
2.
Results of the Cycle 16 HST Peer Review
Brett Blacker
3.
ACS/WFC Geometric Distortion and CTE
Vera Kozhurina-Platais
4.
JWST FGS-Guider Critical Design Review
Pierre Chayer
Next TIPS Meeting will be held on 17 May 2007.