1

HST Cycle 12TAC Results

Bob Williams

TIPS – 17 April 2003

2

TAC Review Committee

“We find no fundamental flaws in the process or unwarranted influence by STScI staff or management.”

“ We also attest to the overall integrity of the TAC process “

“The committee panel was impressed by the efficacy of the process for awarding time on HST, and the role of the STScI in organizing and supporting complex and challenging TAC procedures that we judge to be fair and unbiased.”

3

TAC Review Committee Recommendations

Each proposal should be reviewed by at least one expert

Institutional conflict of interest rules should be eased

Collective memory of TACs should be retained through repeat panelists over consecutive cycles

Written feedback on the evaluation of all proposals should be provided to PI’s

Encourage participation in Treasury Program by organizing annual workshops for development and coordination of large HST programs

4

Cycle 12 Timeline Reduction in time between proposal submission

and cycle observations by ~ 4 months Opportunity to follow up on scientific discoveries ‘Fresher’ science programs

Deadline was January 24 (from September 7) 11 review panels met 24-26 March TAC met 27-29 March Director’s Review April 3, PI notification April 4 Phase II deadline: Mid-May Nominal Cycle 12: July 2003 - June 2004

5

Cycle 12 Overview

1,046 proposals received:

-19,674 orbits requested• Plus: 1860 [Cyc13] & 855 [Cyc14]

-6,067 SNAP targets

-$13.2 M AR funding (including Theory)

6

Oversubscription by Cycle

0.00

1.00

2.00

3.00

4.00

5.00

6.00

7.00

8.00

9.00

1 2 3 4 5 6 7 7N 8 9 10 11 12

Cycle

Ov

ers

ub

sc

rip

tio

n R

ati

o

GO Proposal oversubscriptionGO Orbit oversubscription

AR Funding oversubscription

7

Review Process

Panels select small/medium proposals (2000 orbits)

Panels review large programs for TAC

TAC selects Treasury/Large programs (1000 orbits)

Duplicate panels minimize conflicts and maximize attendance and participation by all panelists

8

New and continued features since Cycle 11

TAC met after panels- NEW Panels provided input on Large/Treasury

programs via Chairs “Progressive subsidy” for Regular proposals -

MODIFIED Chandra allocation for multi-wavelength

programs NOAO allocation for supporting ground-based

observations

9

Types and Sizes of Proposals GO - orbits

Large (100 or more orbits) Regular (1-99 orbits)

AR and Theory - funding SNAP - targets

one visit = one target no links, no guarantees probability of execution ~50%

10

Proposal categories

Treasury Provide datasets for lasting value to HST program Should focus on potential to solve multiple problems Provide enhanced data products

AR Legacy Provide homogeneous set of calibrated data Should enable new and important science

(AR) Theory Direct relevance to HST observational research Mission-specific favored over general theory programs

11

Other Categories Long-term Programs

Cycle 12 TAC/Panels may award Cycle 13+14 time (~5%) where required by science.

(No proposal resubmission in those cycles)

Target-of-Opportunity (TOO) Proposals 1-2 ultra-fast (< 2 days) activations (15 orbit

overhead) ~ 6 rapid (< 2 weeks) activations allowed ~ 20 TOO activations (> 2 weeks)

12

Cycle 12 Summary

GO Acceptance Rate: ~1/5 for proposals and ~1/6 for orbits

SNAP Acceptance rate: ~1/3.5 for proposals and targets

AR Acceptance rate: ~1/2.6 for proposals and dollars

Theory Acceptance rate: ~1/4.2 for proposals and ~1/4.6 for

dollars

AR Legacy Acceptance rate: 0 approved

GO proposals acceptance rate approximately independent of size.

28.7% of program awarded to Large/Treasury Programs.

Instrument breakdown for GO Programs: ACS (55%), STIS (23%),

NICMOS (21%), WFPC2 (2%), FGS (5%)

ESA acceptance fraction 16.8% for proposals and 10.2% for orbits

13

Cycle12 Summary (Cont.)

$2.97M awarded to Regular AR programs $680K awarded to Theory programs Proposal acceptance fraction similar for panelists and non-

panelists Proposal acceptance fraction similar for STScI staff &

community Chandra: accepted 3 out of 25 proposals, or 115 ksecs out of

1444 submitted NOAO: accepted 7 out of 15 proposals, or 17.5 nights out of

41.5 submitted Calibration: 2 AR for $130K and 3 GO for 12 orbits approved ToO’s: approved 1 ultra-fast (< 2 days) + 2 fast (< 2 week) + 8

other

14

Summary Results

Proposals RequestedApproved% AcceptedESA Accepted ESA %

GO 819 170 20.8% 28 16.5%

Snapshot 74 21 28.4% 4 19.0%

Archival 111 41 36.9%

Theory 42 10 23.8%

Total 1046 242 23.1% 32 16.8%

Primary Orbits 19674 3154 16.0% 323 10.2%

Includes 0790.bahcall (48 orbits) and 0314.webster (30 orbits) and 12 calibration orbits

15

Acceptance Fraction by Size

0.00%

10.00%

20.00%

30.00%

40.00%

50.00%

60.00%

70.00%

80.00%

90.00%

100.00%

1 - 10 11 - 20 21 - 30 31 - 40 41 - 50 51 - 100 >100 Overall

Orbit Bins

Proposals

Orbits

83

3826

86

4 4

16

Orbit Size by Cycle

0

5

10

15

20

25

30

35

6 7 7N 8 9 10 11 12

Cycle

Orb

it S

ize

Median Submitted

Median Approved

Average Submitted

Average Approved

17

STScI Acceptance Resources

Submitted Approved Approved

Fraction

Fraction of Cycle

Approved

AR $492K

(6)

$60K

(1)

12.2% 2%

Theory $472K

(7)

$90K

(1)

19% 13.1%

Orbits 2573

(73)

424

(20)

16.5% 13.4%

Snap

Targets

460

(5)

40

(1)

9% 2.3%

18

STScI Proposal Acceptance

0%

10%

20%

30%

40%

50%

60%

70%

80%

90%

100%

5 6 7 7N 7AR 8 9 10 11 12

Cycle

STScI Acceptance RateAverage Acceptance RateFraction of Program

19

GO Instrument Summary

InstrumentsRequested

Orbits %Approved

Orbits %Total for Instrument

ACS/HRC 1914 7.4% 251 4.7%ACS/SBC 266 1.0% 19 0.4%ACS/WFC 11727 45.3% 53.7% 2640 49.7% 54.8%FGS 578 2.2% 2.2% 268 5.0% 5.0%NIC1 427 1.6% 183 3.4%NIC2 1866 7.2% 597 11.2%NIC3 1471 5.7% 14.5% 342 6.4% 21.1%STIS/CCD 1475 5.7% 333 6.3%STIS/FUV 2743 10.6% 433 8.1%STIS/NUV 1516 5.9% 27.8% 126 2.4% 23.2%WFPC2 1919 7.4% 7.4% 123 2.3% 2.3%

25902 100.0% 5315 100.0%

20

Pure Parallel Instrument Summary

Instruments ModeRequested Orbits %

Approved Orbits %

ACS/WFC Imaging 700 35.0% 0 0%ACS/WFC Spectroscopy 300 15.0% 0 0%NICMOS/NIC/3 Spectroscopy 500 25.0% 500 100%WFPC2 Imaging 500 25.0% 0 0%

2000 500

21

Calibration Proposals

7 Proposals Submitted: 2 AR for $130K and 5 GO for 33 orbits2 AR and 3 GO approved for 12 orbits

AR: 0433.wyse An astrometric standard field in omega Cen

0562.dolphin CTE Corrections for WFPC2 and ACS GO: 0149.odell Calibration of the ACS Emission Line Filters

0568.dolphin ACS Photometric Zero Point Verification

1233.hines Enabling Coronagraphic Polarimetry with NICMOS

22

TREASURY & LARGE PROGRAMS

Thompson -[T]- 144 orbits Deep IR images in CHANDRA Deep Field South

Scoville-[T]-320 orbits Cy 12+320 orbits Cy 13 COSMOS 2-Degree ACS survey

Riess & Perlmutter -60 orbits each SNIa Hubble Diagram

Benedict- 60 orbits- Astrometric Calibration of Cepheids P-L relation

23

TREASURY & LARGE PROGRAMS

Sahu- 110 orbits Galactic bulge planetary transit survey

Malhotra- 40 orbits Grism- ACS program for extragalactic science

Kochanek- 110 orbits Imaging of gravitational lenses