Chandra Director’s Office
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Chandra Director’s Office
# Proposals per Cycle
900
800
700
600
No. of Proposals Submitted (zoom)
Number
500
90
LP
80
VLP
400
70
Archive
60
LP
Theory
50
VLP
300
Archive
40
200
Theory
30
100
20
10
0
0
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
10
10
Cycle
Cycle
Chandra Users’ Committee, 9-10 Apr 2008
All proposals
GO
Number
Proposal Cycle 10
639 submitted proposals
*5.6 oversubscribed
(based on time)
64 LP, 8 VLP
Fewer LPs cf Cycle 9 (48)
57 Archive, 41 Theory
Chandra Director’s Office
Total Time Request
Change from Cycle 9
Time request: -3%
LP request: +18%
VLP request: -40%
Grating request: +36%
Time Request (ksecs)
Time Requested per Cycle
120000
100000
80000
60000
40000
20000
0
1
2
3
4
5
6
7
8
Cycle
Fraction Grating Time Requested
Oversubscription in Time
0.35
Ratio: Gratings/Total Request
8
0.3
7
0.25
6
5
0.2
4
0.15
3
0.1
2
0.05
1
0
0
1
2
3
4
5
6
7
8
9
Cycle
Chandra Users’ Committee, 9-10 Apr 2008
10
1
2
3
4
5
6
7
8
9
10
Cycle
Chandra Director’s Office
9
10
Gratings Proposals
Grating Time Request
30000
Time
25000
20000
TOTAL
15000
HETG
10000
LETG
5000
0
1
2
3
4
5
6
7
8
9
10
Cycle
Chandra Users’ Committee, 9-10 Apr 2008
Chandra Director’s Office
Oversubscription by Category
LP over-subscription is
12
10
Oversubscription Ratio
the highest (9.6)
Oversubscription by Category
Compensated by
opening up of LP/VLP
division (6.7)
8
Archive
Theory
LP
VLP
GO
6
4
2
0
1
2
3
4
5
6
7
8
9
10
Cycle
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
Cycle
Chandra Users’ Committee, 9-10 Apr 2008
Chandra Director’s Office
Joint Chandra Proposals:
other Observatory TACs
Joint Proposals
XMM TAC: 2 approved, in ObsCat
HST TAC: not done yet
Spitzer: no joint time this year by
agreement with SSC (end of cold mission)
Chandra Users’ Committee, 9-10 Apr 2008
Chandra Director’s Office
Peer Review
16-21 June 2007, Hilton, Logan Airport
13 topical panels, 1 Big Project Panel (BPP)
Program as last year:
Tues, Wed: topical panels
Wed evening: BPP organizational session
Thurs, Frid: 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
Chandra Users’ Committee, 9-10 Apr 2008
Chandra Director’s Office
Peer Review (cont)
Changes from last year:
LP/VLPs all compete for 6 Msecs
Constrained Observations:
Same as last year (Easy: 45; Average 35; Diff. 20)
Assessment take a full observing cycle
Pat Slane will discuss Cycle 9 scheduling
Cost Review:
External: for proposals asking for > fair share
Internal: remainder
Chandra Users’ Committee, 9-10 Apr 2008
Chandra Director’s Office
Response to October 2007 CUC Report
LP/VLP: single pool for LP and VLP proposals – done
Gratings: increase community awareness
HEAD session (SDS)
Gratings Atlas (SDS)
Threads: 1 new proposal thread, more in the works (SDS)
Survey: Paul Green (next)
Chandra Source Catalog:
What’s New item and new section (4.7.1) encouraging archival proposals
using source catalog
On-line information about catalog (Ian Evans)
Constrained Observations: Scheduling (Pat Slane)
CIAO Community Education (Jonathon McDowell)
Chandra Fellows:
Planning; webcast plus public posting of talks
Question of Mentors for Fellows (Nancy Evans)
Chandra Users’ Committee, 9-10 Apr 2008
Chandra Director’s Office