Chandra X-Ray Observatory (CXC)

Cycle 17 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              347    1024   112     37337.39  37337.39
GTO               1       4     4       100.00    100.00
LP               71     431    14     40122.00  40122.00
TOO              66      98    18      6650.00   2800.83
TOO/LP            1       1     1        20.00      4.00
ARCHIVE          55       0     0      3405.50      0.00
THEORY           37       0     0      2604.85      0.00
                ---    ----   ---    --------- ---------
                578    1558   149     84229.39  80364.22
                 Approved 
#Prop   #Tgts  #TC=Y    AppTime    w/Prob Units
-------------------------------------------------
  98     264    36      9370.94   9370.94  ksec
   1       4     4       100.00    100.00  ksec
  13      46     5      6016.00   6016.00  ksec
  35      51     9      3304.00   1008.58  ksec

  18       0     0      1075.70      0.00  1000 US dollars
  10       0     0       676.40      0.00  1000 US dollars
 ---    ----   ---    --------- ---------
 175     365    54     18790.94  16495.52

Multicycle Proposals
                             Requested  
Type           #Prop  Cycle 17  Cycle 18  Cycle 19 
--------------------------------------------------
GO               11    578.00    691.00    580.00
LP                2    450.00    450.00    450.00
TOO               2    335.00    105.00     30.00
              ----- --------- --------- ---------
                 15   1363.00   1246.00   1060.00 
               Approved  
 #Prop  Cycle 17  Cycle 18  Cycle 19 
------------------------------------
     5    287.00    274.00    122.00

     1     90.00     30.00     30.00
 ----- --------- --------- ---------
     6    377.00    304.00    152.00

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

                                                    Requested 
Category                                   #Prop   #Tgts     ReqTime     w/Prob
-------------------------------------------------------------------------------
SOLAR SYSTEM                                   5       4      1008.00   1008.00
STARS AND WD                                  71     203     11919.94  11822.19
WD BINARIES AND CV                            13      21      1307.00   1254.95
BH AND NS BINARIES                            70     106      6121.00   3955.23
SN, SNR AND ISOLATED NS                      105     169      9265.50   8543.90
NORMAL GALAXIES: DIFFUSE EMISSION             21      46      3436.00   3436.00
NORMAL GALAXIES: X-RAY POPULATIONS            34     119      5786.20   5716.20
ACTIVE GALAXIES AND QUASARS                  133     565     17869.05  17251.05
CLUSTERS OF GALAXIES                          99     265     19518.70  19518.70
EXTRAGALACTIC DIFFUSE EMISSION AND SURVEYS    12      39      4450.00   4450.00
GALACTIC DIFFUSE EMISSION AND SURVEYS         15      21      3548.00   3408.00
                                             ---    ----    --------- ---------
                                             578    1558     84229.39  80364.22
           Approved 
  #Prop   #Tgts    AppTime    w/Prob
  ----------------------------------
    2       1       288.00    288.00
   25      47      2494.74   2396.99
    3       3       380.00    380.00
   31      50      2662.00   1195.83
   32      33      2865.00   2490.50
    2       6        46.00     46.00
   10      20      1414.00   1344.00
   31     114      4123.20   3836.20
   31      75      4184.00   4184.00
    3       7        70.00     70.00
    5       9       264.00    264.00
  ---    ----     --------  --------
  175     365     18790.94  16495.52

Multicycle Proposals
                                                         Requested  
Category                                   #Prop  Cycle 17  Cycle 18  Cycle 19 
------------------------------------------------------------------------------
ACTIVE GALAXIES AND QUASARS                    4    420.00    245.00    160.00
BH AND NS BINARIES                             2    136.00    122.00    168.00
NORMAL GALAXIES: X-RAY POPULATIONS             4    575.00    575.00    500.00
SN, SNR AND ISOLATED NS                        3    140.00    140.00    140.00
SOLAR SYSTEM                                   1     72.00    144.00     72.00
STARS AND WD                                   1     20.00     20.00     20.00
                                           ----- --------- --------- ---------
                                              15   1363.00   1246.00   1060.00 
              Approved  
#Prop  Cycle 17  Cycle 18  Cycle 19 
-----------------------------------
    1     85.00     80.00      0.00 
    1     90.00     30.00     30.00 

    2    110.00     30.00     30.00 
    1     72.00    144.00     72.00 
    1     20.00     20.00     20.00 
  --- --------- --------- ---------
    6    377.00    304.00    152.00

3. Targets,Exposure Time by Detector

                                Requested
Detector  Grating    #Tgts      Time    w/Prob
----------------------------------------------
ACIS-I    NONE         377  31023.50  30892.50
ACIS-S    HETG          64  10626.00   8752.65
ACIS-S    LETG           1     85.00     12.75
ACIS-S    NONE        1069  39308.89  37619.32
HRC-I     NONE          30    728.00    725.50
HRC-S     LETG          12   2183.00   2116.00
HRC-S     NONE           5    275.00    245.50
                      ---- --------- ---------
                      1558  84229.39  80364.22
            Approved
 #Tgts      Time    w/Prob
--------------------------
    71   6117.00   6061.00
    28   3759.00   2360.90
     1     85.00     12.75
   253   7846.94   7144.87
     5    408.00    405.50
     4    460.00    425.00
     3    115.00     85.50
  ----  --------  --------
   365  18790.94  16495.52

4. Targets by Exposure Time Range

            Requested
Time            #Tgts
---------------------
   0>=T<2           26
   2>=T<4          102
   4>=T<8          191
   8>=T<16         449
  16>=T<32         282
  32>=T<64         211
  64>=T<128        152
 128>=T<300         98
 300>=T<1000        37
1000>=T<10000       10
      Approved
         #Tgts
         -----
             4
            13
            47
           107
            71
            35
            43
            32
             8
             1

5. Proposals by Exposure Time Range

            Requested
Time            #Prop
---------------------
   0>=T<2            0
   2>=T<4            0
   4>=T<8            2
   8>=T<16           8
  16>=T<32          44
  32>=T<64          99
  64>=T<128        127
 128>=T<300        131
 300>=T<1000        65
1000>=T<10000       10
      Approved
         #Prop
         -----
             0
             0
             2
             5
            14
            35
            39
            38
            13
             1

6. Number of Proposals per P.I.

   Requested
#Prop   #P.I.
-------------
  1       296
  2        87
  3        17
  4        10
  5         1
  6         2
 Approved
     #P.I.
 ---------
     125
      19
       4



7. Proposals by Country

                       Requested
Country         #Prop       Time    w/Prob
------------------------------------------
AUSTRALIA         2        80.00     80.00
AUSTRIA           2       250.00    250.00
BULGARIA          1       120.00    120.00
CANADA            5      1157.00   1002.80
CHILE             4       460.00    460.00
CHINA             2        80.00     80.00
COSTA RICA        1        20.00     20.00
DENMARK           1         0.00      0.00
FRANCE            5       517.00    386.50
GERMANY          19      3882.00   3389.40
GREECE            1        30.00     30.00
INDIA             6       318.00    315.60
IRELAND           1       160.00    160.00
ITALY            36      8024.00   7877.00
JAPAN            12      1668.70   1588.70
KOREA             1       120.00    120.00
MEXICO            1       250.00    250.00
NETHERLANDS      14      2055.00   1531.75
SOUTH AFRICA      2        65.00     65.00
SPAIN             7       535.00    525.20
SWITZERLAND       5       990.00    990.00
TAIWAN            5       674.00    674.00
TURKEY            3       420.00    380.00
UK               24      4049.00   3990.50
USA             417     58214.69  55987.77
VENEZUELA         1        90.00     90.00


Total Foreign   161     26014.70  24376.45
             Approved
    #Prop         Time     w/Prob
    -----------------------------



        3       552.00    481.80
        3       420.00    420.00



        1       150.00     19.50
        5       715.00    222.40

        1        45.00     45.00

        8      1437.00   1365.00
        2       150.00    150.00

        1       250.00    250.00
        4       545.00    397.75
        1        50.00     50.00
        1        85.00     76.50



        6       808.00    805.50
      139     13583.94  12212.07



       36      5207.00   4283.45

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10.7.1 Friday, November 16, 2018
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.