Chandra X-Ray Observatory (CXC)

Cycle 15 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              381    1064   101     39059.20  39059.20
GTO/TOO           1       1     0       150.00     15.00
LP               62     269    32     31347.10  31347.10
TOO              68     117    32      6418.00   3325.89
XVP              16     490    16     32145.59  32145.59
ARCHIVE          69       0     0      4638.32      0.00
THEORY           39       0     0      2755.08      0.00
                ---    ----   ---    --------- ---------
                636    1941   181    109119.89 105892.78
                 Approved 
#Prop   #Tgts  #TC=Y    AppTime    w/Prob Units
-------------------------------------------------
 108     247    31     10144.00  10144.00  ksec
   1       1     0       150.00     15.00  ksec
   8      25     9      3577.00   3577.00  ksec
  35      52     8      2908.00   1217.83  ksec
   2       2     0      5000.00   5000.00  ksec
  17       0     0      1068.83      0.00  1000 US dollars
   8       0     0       611.70      0.00  1000 US dollars
 ---    ----   ---    --------- ---------
 179     327    48     21779.00  19953.83

Multicycle Proposals
                             Requested  
Type           #Prop  Cycle 15  Cycle 16  Cycle 17 
--------------------------------------------------
GO                6    267.00    210.00    198.00
LP                3    743.00    674.00    460.00
TOO               1     90.00     30.00     30.00
XVP               1   2839.00    930.00      0.00
              ----- --------- --------- ---------
                 11   3939.00   1844.00    688.00 
               Approved  
 #Prop  Cycle 15  Cycle 16  Cycle 17 
------------------------------------
     3     98.00     98.00     98.00



 ----- --------- --------- ---------
     3     98.00     98.00     98.00

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

                                                    Requested 
Category                                   #Prop   #Tgts     ReqTime     w/Prob
-------------------------------------------------------------------------------
SOLAR SYSTEM                                   3       9       281.00    281.00
STARS AND WD                                  89     235     14500.60  14461.60
WD BINARIES AND CV                            26      53      3146.70   3010.70
BH AND NS BINARIES                            89     135      7618.20   6080.95
SN, SNR AND ISOLATED NS                      103     179     12235.50  11392.14
NORMAL GALAXIES: DIFFUSE EMISSION             29      43      2968.00   2968.00
NORMAL GALAXIES: X-RAY POPULATIONS            39     110      5461.80   5461.80
ACTIVE GALAXIES AND QUASARS                  131     467     22600.70  21936.20
CLUSTERS OF GALAXIES                          94     650     30410.79  30410.79
EXTRAGALACTIC DIFFUSE EMISSION AND SURVEYS    21      44      9417.60   9417.60
GALACTIC DIFFUSE EMISSION AND SURVEYS         12      16       479.00    472.00
                                             ---    ----    --------- ---------
                                             636    1941    109119.89 105892.78
           Approved 
  #Prop   #Tgts    AppTime    w/Prob
  ----------------------------------
    3       9       281.00    281.00
   23      36      1894.10   1863.10
    7       8       403.00    287.00
   35      50      2979.00   2048.53
   30      52      2522.00   2081.80
    6       7       595.00    595.00
   10      26       996.80    996.80
   30      71      3463.00   3162.50
   22      47      3175.10   3175.10
    8       9      5241.00   5241.00
    5      12       229.00    222.00
  ---    ----     --------  --------
  179     327     21779.00  19953.83

Multicycle Proposals
                                                         Requested  
Category                                   #Prop  Cycle 15  Cycle 16  Cycle 17 
------------------------------------------------------------------------------
BH AND NS BINARIES                             2    233.00    104.00    190.00
CLUSTERS OF GALAXIES                           1   2839.00    930.00      0.00
NORMAL GALAXIES: X-RAY POPULATIONS             3    375.00    375.00    375.00
SN, SNR AND ISOLATED NS                        2     73.00     73.00     73.00
STARS AND WD                                   2    119.00     62.00     50.00
WD BINARIES AND CV                             1    300.00    300.00      0.00
                                           ----- --------- --------- ---------
                                              11   3939.00   1844.00    688.00 
              Approved  
#Prop  Cycle 15  Cycle 16  Cycle 17 
-----------------------------------


    1     25.00     25.00     25.00 
    2     73.00     73.00     73.00 


  --- --------- --------- ---------
    3     98.00     98.00     98.00

3. Targets,Exposure Time by Detector

                                Requested
Detector  Grating    #Tgts      Time    w/Prob
----------------------------------------------
ACIS-I    HETG           2     30.00     30.00
ACIS-I    NONE         824  46313.79  45832.79
ACIS-S    HETG          76  12064.00  10744.85
ACIS-S    LETG           5   1700.00   1610.00
ACIS-S    NONE        1003  43879.10  42691.30
HRC-I     NONE          14   1049.00   1049.00
HRC-S     LETG          17   4084.00   3934.84
                      ---- --------- ---------
                      1941 109119.89 105892.78
            Approved
 #Tgts      Time    w/Prob
--------------------------

    76   8434.10   8341.10
    25   3194.00   2462.35
     2    700.00    610.00
   211   8836.90   8053.38
     9    269.00    269.00
     4    345.00    218.00
  ----  --------  --------
   327  21779.00  19953.83

4. Targets by Exposure Time Range

            Requested
Time            #Tgts
---------------------
   0>=T<2            8
   2>=T<4           70
   4>=T<8          221
   8>=T<16         540
  16>=T<32         401
  32>=T<64         321
  64>=T<128        231
 128>=T<300         94
 300>=T<1000        48
1000>=T<10000        7
      Approved
         #Tgts
         -----
             4
            21
            42
            70
            48
            58
            46
            30
             4
             2

5. Proposals by Exposure Time Range

            Requested
Time            #Prop
---------------------
   0>=T<2            0
   2>=T<4            0
   4>=T<8            1
   8>=T<16          17
  16>=T<32          40
  32>=T<64         109
  64>=T<128        154
 128>=T<300        126
 300>=T<1000        65
1000>=T<10000       16
      Approved
         #Prop
         -----
             0
             0
             1
             6
            19
            35
            49
            35
             7
             2

6. Number of Proposals per P.I.

   Requested
#Prop   #P.I.
-------------
  1       323
  2        92
  3        29
  4         6
  5         1
  6         1
  7         1
 Approved
     #P.I.
 ---------
     136
      17
       3




7. Proposals by Country

                       Requested
Country         #Prop       Time    w/Prob
------------------------------------------
AUSTRALIA         1        40.00     40.00
BELGIUM           1       350.00    350.00
BULGARIA          1       139.00    139.00
CANADA           10      1404.80   1282.10
CHILE             2       230.00    230.00
CHINA             2       185.00    185.00
FRANCE            8       767.00    590.00
GERMANY          31      3452.60   2916.60
GREECE            4       570.00    560.00
INDIA             5       356.00    353.60
IRELAND           1        21.00     21.00
ISRAEL            2       120.00     72.00
ITALY            28      6985.00   6890.00
JAPAN            12      1550.00   1474.00
KOREA             1        30.00     30.00
NETHERLANDS      11      1067.00    772.72
POLAND            1        40.00     40.00
RUSSIA            2        42.00     42.00
SLOVAKIA          1       216.00    213.84
SPAIN             6       960.00    917.50
SWITZERLAND       2       530.00    530.00
TAIWAN            5       340.00    340.00
TURKEY            1        20.00     20.00
UK               19      5395.00   5333.00
USA             479     84309.49  82550.42


Total Foreign   157     24810.40  23342.36
             Approved
    #Prop         Time     w/Prob
    -----------------------------
        1        40.00     40.00


        2       195.00    142.50
        1       190.00    190.00

        4       376.00    229.00
        8      1335.00    979.00
        1        50.00     40.00
        4       316.00    313.60

        1        60.00     30.00
        7       651.00    556.00
        2        64.00     48.00

        2        73.00     73.00



        2       165.00    122.50
        1       250.00    250.00


        6       550.00    550.00
      137     17464.00  16390.23


       42      4315.00   3563.60
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DS10.8 Tuesday April 23 2019
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 © 1998-2018. All rights reserved.