Cycle 25 Recommended Targets: Statistics

Statistics for all proposals submitted to the peer review, including the GTO proposals which were competed. This does NOT include GTO time which was uncompeted or Calibration observations. Units for time are given in kiloseconds.

1. Proposals by Type

                                Requested  
Type           #Prop   #Tgts  #TC=Y    ReqTime    w/Prob
--------------------------------------------------------
GO              240     770    57     33014.49  33014.49
GTO/TOO           1       1     0       300.00     30.00
LP               31     359     7     18537.40  18537.40
TOO              55      83    17      5592.00   3256.89
TOO/LP            3       7     5      1630.00    491.00
VLP               7       8     4     16760.00  16760.00
ARCHIVE          49       0     0      4289.90      0.00
THEORY           22       0     0      2126.27      0.00
                ---    ----   ---    --------- ---------
                408    1228    90     75833.89  72089.78

                 Approved 
#Prop   #Tgts  #TC=Y    AppTime    w/Prob Units
-------------------------------------------------
  76     284    16      9946.19   9946.19  ksec
   1       1     0       300.00     30.00  ksec
   3      11     1      2400.00   2400.00  ksec
  21      32     6      2064.00   1048.35  ksec
   1       3     3       550.00    275.00  ksec
   1       1     0      1800.00   1800.00  ksec
  14       0     0      1016.49      0.00  1000 US dollars
   7       0     0       676.44      0.00  1000 US dollars
 ---    ----   ---    --------- ---------
 124     332    26     17060.19  15499.54

Multicycle Proposals

Requested Type #Prop Cycle 25 Cycle 26 Cycle 27 -------------------------------------------------- GO 3 365.00 345.00 125.00 LP 2 374.00 373.00 373.00 TOO 1 90.00 35.00 0.00 TOO/LP 1 340.00 200.00 0.00 VLP 1 2160.00 1160.00 1000.00 ----- --------- --------- --------- 8 3329.00 2113.00 1498.00

Approved #Prop Cycle 25 Cycle 26 Cycle 27 ------------------------------------ 3 365.00 345.00 125.00 1 234.00 233.00 233.00 1 90.00 35.00 0.00 ----- --------- --------- --------- 5 689.00 613.00 358.00

2. Proposals by Subject Category
#Props includes Archive/Theory proposals.

                                                    Requested 
Category                                   #Prop   #Tgts     ReqTime     w/Prob
-------------------------------------------------------------------------------
SOLAR SYSTEM AND EXOPLANETS                    2       2        90.00     90.00
STARS AND WD                                  34      72      3873.00   3873.00
WD BINARIES AND CV                             8      11       725.00    591.50
BH AND NS BINARIES                            51      79      4202.00   3116.60
SN, SNR AND ISOLATED NS                       65     108      8044.50   7535.04
GRAVITATIONAL WAVE EVENT                       5       9      1840.00    917.00
NORMAL GALAXIES: DIFFUSE EMISSION              6       5      1400.00   1400.00
NORMAL GALAXIES: X-RAY POPULATIONS            22      83      5746.80   5746.80
ACTIVE GALAXIES AND QUASARS                  131     702     27964.20  27029.70
CLUSTERS OF GALAXIES                          70     134     15971.39  15971.39
EXTRAGALACTIC DIFFUSE EMISSION AND SURVEYS     4       3      4420.00   4420.00
GALACTIC DIFFUSE EMISSION AND SURVEYS         10      20      1557.00   1398.75
                                             ---    ----    --------- ---------
                                             408    1228     75833.89  72089.78

           Approved 
  #Prop   #Tgts    AppTime    w/Prob
  ----------------------------------
    1       1        20.00     20.00
   16      26      1394.00   1394.00
    2       5       270.00    181.50
   19      30      1642.00   1047.50
   15      23      1818.00   1698.10
    4       7      1300.00    755.00
    1       1       100.00    100.00
    6      34      1681.00   1681.00
   36     155      5953.30   5796.80
   19      38      2521.89   2521.89
    1       0         0.00      0.00
    4      12       360.00    303.75
  ---    ----     --------  --------
  124     332     17060.19  15499.54

Multicycle Proposals

Requested Category #Prop Cycle 25 Cycle 26 Cycle 27 ------------------------------------------------------------------------------ BH AND NS BINARIES 1 90.00 35.00 0.00 EXTRAGALACTIC DIFFUSE EMISSION AND SURVEYS 1 2160.00 1160.00 1000.00 GRAVITATIONAL WAVE EVENT 2 540.00 400.00 0.00 SN, SNR AND ISOLATED NS 3 414.00 393.00 373.00 STARS AND WD 1 125.00 125.00 125.00 ----- --------- --------- --------- 8 3329.00 2113.00 1498.00

Approved #Prop Cycle 25 Cycle 26 Cycle 27 ----------------------------------- 1 90.00 35.00 0.00 1 200.00 200.00 0.00 2 274.00 253.00 233.00 1 125.00 125.00 125.00 --- --------- --------- --------- 5 689.00 613.00 358.00

3. Targets,Exposure Time by Detector

                                Requested
Detector  Grating    #Tgts      Time    w/Prob
----------------------------------------------
ACIS-I    NONE         184  29961.39  29901.89
ACIS-S    HETG          48   6624.00   5827.80
ACIS-S    NONE         965  36829.50  34015.09
HRC-I     NONE          25   2009.00   2009.00
HRC-S     LETG           4    160.00     86.00
HRC-S     NONE           2    250.00    250.00
                      ---- --------- ---------
                      1228  75833.89  72089.78

            Approved
 #Tgts      Time    w/Prob
--------------------------
    69   5567.89   5508.39
    11   1125.00    513.50
   228   8944.30   8095.15
    20   1113.00   1113.00
     2     60.00     19.50
     2    250.00    250.00
  ----  --------  --------
   332  17060.19  15499.54

4. Targets by Exposure Time Range

            Requested
Time            #Tgts
---------------------
   0<=T<2            3
   2<=T<4           44
   4<=T<8          238
   8<=T<16         325
  16<=T<32         246
  32<=T<64         125
  64<=T<128        124
 128<=T<400         98
 400<=T<1000        18
1000<=T<10000        7

5. Proposals by Exposure Time Range

            Requested
Time            #Prop
---------------------
   0<=T<2            0
   2<=T<4            0
   4<=T<8            0
   8<=T<16           9
  16<=T<32          21
  32<=T<64          54
  64<=T<128         82
 128<=T<400        129
 400<=T<1000        35
1000<=T<10000        7

6. Number of Proposals per P.I.

   Requested
#Prop   #P.I.
-------------
  1       229
  2        54
  3        15
  4         5
  6         1

 Approved
     #P.I.
 ---------
      98
      10
       2

7. Proposals by Country

                       Requested
Country         #Prop       Time    w/Prob
------------------------------------------
CANADA           12      1754.00   1746.44
CHINA             8      1686.40   1686.40
CZECHIA           3       484.00    484.00
DENMARK           1        50.00     50.00
FRANCE            1       150.00     37.50
GERMANY           9      1250.00   1102.50
GREECE            1       260.00    260.00
HONG KONG         1       195.00    195.00
INDIA             1        91.00     91.00
ITALY            27      6216.00   5839.50
JAPAN             5       790.00    622.00
KOREA, SOUTH      3       510.00    510.00
NETHERLANDS       2       570.00    480.00
NORWAY            1        40.00     40.00
POLAND            1       300.00    300.00
RUSSIA            1        50.00     50.00
SPAIN             5       534.30    384.30
SWEDEN            1       200.00    200.00
TAIWAN            4       535.00    535.00
TURKEY            1       150.00    150.00
UNITED ARAB EMI   1        12.00      3.60
UNITED KINGDOM    9      4494.00   4429.00
USA             310     55512.19  52893.54


Total Foreign    98     20321.70  19196.24

             Approved
    #Prop         Time     w/Prob
    -----------------------------
        3       460.00    460.00
        2       210.00    210.00
        1        40.00     40.00

        1       150.00     37.50
        3       520.00    462.00


        1        91.00     91.00
        8      1851.00   1516.50








        1        70.00     70.00
        1       150.00    150.00
        1        12.00      3.60
        4       700.00    635.00
       98     12806.19  11823.94


       26      4254.00   3675.60

10.12.4 Friday, March 29, 2024
The Chandra X-Ray Center (CXC) is operated for NASA by the Smithsonian Astrophysical Observatory. 60 Garden Street, Cambridge, MA 02138 USA. Email: cxchelp@cfa.harvard.edu Smithsonian Institution, Copyright © 1998-. All rights reserved.