Cycle 11 Peer Review
# Proposals per Cycle
900
Proposal Numbers:
800
 668 submitted proposals
 *5.6 oversubscribed
(based on time)
 50 LP, 9 VLP
 65 Archive
 40 Theory
700
No. of Proposals Submitted (zoom)
Number Number
600
90
All proposals
80
500
70
GO
60
400
VLP LP
LP
Archive
VLP
50
Theory
Archive
300
40
Theory
30
200
20
10
100
0
0
1
1
2
2
3
3
4 5 6 7 8 9 10 11
4 5 Cycle
6 7 8 9 10 11
Cycle
Chandra Users’ Committee, 29-30 Oct 2009
Chandra Director’s Office
Total Time Request
Time requested/time available
 Time allocated: +5.8%
 Final oversubscription: 5.2
 Grating request -48%
Oversubscription in Time
8
7
6
5
4
3
2
1
0
1
2
3
4
Time per Cycle (Msec)
5
6
7
8
9
10
11
Cycle
Fraction Grating Time Requested
120
100
80
Requested
60
Accepted
40
20
0
1
2 3 4
5 6 7
8 9 10 11
Cycle
Ratio: Gratings/Total Request
0.35
0.3
0.25
0.2
0.15
0.1
0.05
0
1
2
3
4
5
6
7
8
9
Cycle
Chandra Users’ Committee, 29-30 Oct 2009
Chandra Director’s Office
10
11
Over-subscription by Category
 LP/VLP competed for full 6 Msec
 Over-subscription: 6.65
 12 LP, 1 VLP approved
Oversubscription by Category
12
Oversubscription Ratio
10
8
Archive
Theory
LP
VLP
GO
6
4
2
0
1
2
3
4
5
6
7
8
9
10
11
Cycle
Chandra Users’ Committee, 29-30 Oct 2009
Chandra Director’s Office
Allocation by Instrument and Science Category
Effective Oversubscription in Time
Surveys: Glc
Time Allocated per
Instrument
Surveys: Eglc
HRC-S
2%
HRC-S/LETG
4%
HRC-I
0%
Time Allocated by
Surveys: Glc
Science Category
1%
Solar System
Surveys: Eglc
Stars & WD
0%
4%
13%
WD Binrs &
Clusters
CV
16%
4%
Clusters
ACIS-I
AGN
22%
BH&NS Binrs
14%
Gals: Poplns
Gals: Diffuse
AGN
18%
SN, SNR
ACIS-S/HETG
ACIS-S
53%
18%
BH&NS Binrs
Gals: Poplns
2%
ACIS-S/LETG
1%
WD Binrs & CV
SN, SNR
22%
Gals: Diffuse
6%
b
Stars & WD
Solar System
0
2
Chandra Users’ Committee, 29-30 Oct 2009
4
6
8
10
12
14
Chandra Director’s Office
Gratings Proposals
Grating Time Request
HETG request: - 40%
120000
100000
Time
% Targets approved ~20%
Time/target: 80ks (3x ACIS)
80000
Total CXO
60000
HETG
40000
LETG
20000
0
#targets: 60 (4% of ACIS)
1 2 3 4
5 6 7
8 9 10 11
Cycle
→ fluctuations due to
small # statistics
Over-subscription
Ratio
10
8
6
Total
HETG
4
2
LETG
0
1
2
3
4
5
6
7
8
9
10
11
Cycle
Chandra Users’ Committee, 29-30 Oct 2009
Chandra Director’s Office
Archive/Theory Results
O v e rs ubs c ript io n
7
6
5
4
A r chi ve
3
T heor y
2
1
Archive:
0
3
4
5
 Budget: $1100K
 Allocated $1386K (20)
 Over-subscription: 3.3
 Theory:
 Budget: $520K
 Allocated: $960 (11)
 Over-subscription: 3.3
Chandra Users’ Committee, 29-30 Oct 2009
6
7
8
9
10
11
P ro po s a l C yc le
 Reason: panel grading and
priorities
 Total funds: +$300K
 Observing funds: -$426K
Chandra Director’s Office
Peer Review
 21-24 June 2009, Hilton, Logan Airport
 13 topical panels, 1 Big Project Panel (BPP)
 Panels:
 1,2: Stars, Planets
 3,4: SN, SNR, NS
 5,6,7: Binaries, Galaxies: Populations
 8,9,10: Clusters, Galaxies: Diffuse
 11,12,13: AGN, Extragalactic surveys
 Recommended target list posted: 17 July
 Letters (detailed reports, fair share budget)
e-mailed: Aug 13
 Cost Proposal deadline:17 Sept 2009
Chandra Users’ Committee, 29-30 Oct 2009
Chandra Director’s Office
Other Peer Review Results
 Constrained Observations:
 Same as last year (Easy: 45; Average 35; Diff. 20)
 Joint allocated: 5E; GTO: 5A, 8E
 Review Allocated: Diff: 8/20; A+E: 94/64;
If 1D=2(A+E), over by 6; ok’d by MP
 Highest unapproved TC grade 3.8 (requesting 8)
 Keep the same for Cycle 12
 Cost Review:
 External review required for 17 proposals asking for
> fair share
Chandra Users’ Committee, 29-30 Oct 2009
Chandra Director’s Office
Cycle 12 Updates
 RPS: option to check SIMBAD/NED in advance of
submission
 Radiation Zone information: available as table with links
from ProVis, Proposer page etc.
 Archive: separate allocation of money for CDFS-related
archive studies (using DDT funds)
 LP/VLP Review:
• Restore separate LP/VLP allocations and separate BPP
discussion
• 3 Msec for each allocation, allowing small movement
of boundary in either direction
 E/PO Funding: discontinued
Chandra Users’ Committee, 29-30 Oct 2009
Chandra Director’s Office
Students and Chandra
 Annual survey to Chandra PIs requesting input on students
(UG and PG) and postdocs working on Chandra projects.
• Total numbers are ~250 per year (not unique), most of
whom are supported by Chandra grants
• Example Breakdown, 2005: 49 UG, 110 PG, 82 PD
 PhDs using Chandra data, up to 2007: 120 PhDs worldwide
(lower limit), average of 20 per year
 Chandra serves as a key training ground for young scientists
and provides funding to promote US-based training
Chandra Users’ Committee, 29-30 Oct 2009
Chandra Director’s Office
Recent and Upcoming events
 SNR and Pulsar Wind Nebulae in the Chandra Era
• 8-10 July, Cambridge, presentations on website
 Chandra’s First Decade of Discovery: 22-25 Sept 2009
• Full program; exciting science, astronauts’ visit, Harbor
Cruise
 Einstein Fellows
• Symposium: 27-28 Oct
• Application Deadline: 5 Nov
 Cycle 12 Schedule:
• CfP release: 15 Dec 2009
• Proposal deadline: 18 March 2010
• Peer Review: 21-25 June 2010
 NASA Senior Review 2010: Due 8 Feb 2010
 CXC Website: New-look top Science page
Chandra Users’ Committee, 29-30 Oct 2009
Chandra Director’s Office