Summary of HEASARC ftp+http file transfer statistics in May 2005

This includes the main HEASARC site activity (legacy ftp & http stats and cossc 
ftp stats for CGRO); Imagine & StarChild http statistics are listed separately

NB Decimal MBs and GBs are used here: 1 MB = 1,000 KB, 1 GB = 1,000,000 KB
_____________________________________________________________________________
TOTAL FTP+HTTP TRANSFERS FROM LEGACY DIRS= 527.319 + 427.558 GB = 954.877 GB
            FTP TRANSFERS FROM COSSC DIRS=   5.714  GB
TOTAL E&PO (IMAGINE + STARCHILD) TRANSFERS=472.147 + 2476.711GB= 2948.858 GB
_____________________________________________________________________________

 THE MOST POPULAR (> 0.2 GB of data transferred) DIRECTORIES (COMBINED FTP AND
     HTTP STATS OF LEGACY & COSSC THIS MONTH):

                               Raw Totals        Corrected totals assuming
                     files     GB    %Total(GB)  % retrieved = % tarred
                                                   GB     %Total(GB)

Directory: asca  ftp  4969    5.24   0.98%      12.88     2.42%
                http   903    0.02              11.28
           chandra    1171    3.65   0.68%       4.69     0.88%
                       935    0.16               1.69
           compton   18323    5.73   1.08%       5.73     1.08%
                        39    0.21               0.21
           euve         48    0.54   0.10%       0.54     0.10%
                         0    0.00               0.00
           fits_info   809    0.21   0.04%       0.21     0.04%      
                       171    0.01               0.01
           heasarc    3460    3.26   0.61%       3.26     0.61%
                       414    0.43               0.43
           integral  15118    6.43   1.21%       6.49     1.22%
                      3738    3.22               3.31
           oso8        124    0.78   0.15%       0.78     0.15%
                         0    0.00               0.00
           retrieve    679   31.64   5.94%       ----     ----
                       486   46.64               ----
           rosat       881    0.41   0.08%       0.72     0.13%
                      3521    0.11               0.56
           sax          14    0.30   0.06%       0.48     0.09%
                        39    0.00               0.26
           software  83440   25.79   4.84%      25.79     4.84%
                       129    0.13               0.13
           swift     74861  134.92  25.31%     138.27    25.94%
                     12481    1.88               6.83
           xmm        6275   14.88   2.79%      25.23     4.73%
                      2363    0.49              15.76
           xte      214232  299.15  56.12%     307.76    57.74%
                      1149    0.35              13.03

    subtotal of     ftp     532.93  99.98%     532.83    99.96%
     above dirs    http      53.65 100.00%      53.50    99.72% 
___________________________________________________________________________

              2004-2005 Global Summary of HEASARC Server Statistics

               FROM FTP DIRS         FROM MISSION DIRS      FROM ALL DIRS
 SERVER +>     FTP         FTP        HTTP      HTTP       HTTP      FTP+HTTP
 MONTH         FILES    GIGABYTES     FILES  GIGABYTES    GIGABYTES  GIGABYTES
 -----         -----    ---------    -----  ---------     ---------  --------  

  Jan 2004 387003*     399.46*       13271      39.53     124.59X     524.05*X
  Feb      208885*     282.66*       10039      32.46     118.56X     401.22*X
  Mar       80395*     327.03*       61550     265.99     361.60X     688.63*X

  Apr^      77225*     337.60*        4488      31.26      68.42X     406.02*X
  May!     229428*    2185.04*       10819     320.77     392.67X    2577.71*X
  Jun       81154*     683.50*       12976     101.14     179.13X     862.62*X
  
  Jul      863892*     665.06*       15099     117.11     239.31X     904.37*X
  Aug     1169132*     568.98*      628235     229.71     373.80X     942.78*X
  Sep      818837*     341.15*       18009      72.65     187.53X     528.68*X

  Oct      276326*     370.25*       14501      55.73     171.55X     541.79*X
  Nov!     708155*     831.62*       29057      51.97     268.48X    1100.09*X
  Dec       99118*     323.91*      114104      49.07     288.08X     611.99*X

  Jan 2005 172264*     426.53*      162976@    101.53@    316.26X     742.80*X
  Feb      193727*     682.35*       21920      41.70     241.65X     924.00*X
  Mar      375917*     488.78*       27896      77.54     283.50X     772.28*X 
 
  Apr      322158*     520.18*       45796     134.61     537.32X    1057.49*X
  May      425775*     533.03*       26511      53.65     427.56X     960.59*X

-----------------------------------------------------------------------------
 * includes cossc ftp stats            
 X excludes imagine and starchild http stats
 @ includes starchild http transfers from ftp area
 ^ the http stats for April 2004 are low due to Denial of Service attacks
   and some network hardware problems
 ! the ftp stats for May 2004 are high due to a site in Russia having copied
   a good fraction of the RXTE Archive, and ditto the stats for November 2004
   are high due to large volumes being copied by sites in the UK and Japan
______________________________________________________________________________

             HEASARC Website: Summary of http Activity

   Month   HEASARC non-E/PO    Imagine E/PO     StarChild  E/PO
           #Requests  GB       #Requests  GB    #Requests   GB

  Jan 2004  3827423  124.59   7362732  153.43   7972898   841.17 
  Feb       3308692  118.56   7059971  145.62   7836359   828.84
  Mar       3957483  361.60   8013492  164.54   9414724  1040.37

  Apr        987968   68.42   3179397   64.97   3380382   369.86
  May       1836669  392.67   6772537  134.57   6285395   682.45
  Jun       1904685  179.13   4868160  130.42   3136422   343.87

  Jul       1540098  239.31   3787870   85.94   1944212   214.09
  Aug       2975650  373.80   4193161  100.38   2342343   249.10
  Sep       2290132  187.53   6422847  152.74   4582012   503.26

  Oct       2549502  171.55   7594279  252.96   6237221   762.60
  Nov       3340219  268.48   5647657  352.92   6989299   850.17
  Dec       2976930  288.08   4307739  300.98   5067002   587.91

  Jan 2005  3260582  316.26   5264029  512.70   8705050@ 1151.29@
  Feb       2934291  241.65   5486970 2222.50   8669386  2632.99
  Mar       3010915  283.50   5280493  417.57   8772596  2472.30

  Apr       3210783  537.32   5580082  387.80   8920115  2581.43
  May       3446363  427.56   5856778  472.15   8680145  2476.71

-----------------------------------------------------------------------------

      Detailed Breakdown of Current Month by Mission Directory

  Note that usage statistics on ftp, Gopher and the Web are directly 
  available (on a month-by-month basis) on the Web: the URL is 
  http://heasarc.gsfc.nasa.gov/stats/statsmain.html. In general, directories 
  correspond to specific missions, e.g., rosat to ROSAT, asca to ASCA, etc.,
  with the following exceptions:  the caldb directory contains some 
  multi-mission calibration data (mission specific caldb data are credited
  to the mission not to caldb), fits_info contains FITS-related files, heasarc 
  contains complete database catalogs, and software contains multi-mission 
  software.
 
 Transfer Protocol:         ftp                        http
                       files   Mbytes   %Total      files    Mbytes      
/FTP                                              
Directory: ariel5       617      14.3    0.00%          0       0.0
           asca        4969    5239.4    0.98%        903      21.8    
   ^^      astroe       372      55.6    0.01%          0       0.0    
           bbxrt          0       0.0    0.00%          0       0.0    
           caldb        230       6.5    0.00%          0       0.0
           chandra     1171    3647.3    0.68%        935     164.9    
           compton    18323    5728.9    1.08%         39     205.8    
           conx           0       0.0    0.00%          0       0.0    
           copernicus     5       0.3    0.00%          0       0.0    
           cosb           0       0.0    0.00%          0       0.0    
           dxs            1       0.0    0.00%          0       0.0    
           einstein      18       2.5    0.00%          0       0.0    
           euve          48     539.3    0.10%          0       0.0    
           exosat         5       0.7    0.00%         51       0.5    
           fits_info    809     206.9    0.04%        171       5.8    
           ginga          0       0.0    0.00%         73       0.8    
   **      glast          9      29.0    0.01%          0       0.0    
           heao1          0       0.0    0.00%          0       0.0    
           heao3          4       0.3    0.00%          0       0.0    
           heasarc     3460    3261.7    0.61%        414     427.1    
           hete2          4       0.1    0.00%          0       0.0    
           integral   15118    6427.9    1.21%       3738    3218.9    
           oso8         124     782.3    0.15%          0       0.0    
           retrieve     679   31638.3    5.94%        486   46645.0    
           rosat        881     409.9    0.08%       3521     106.0
           sas2           1       0.0    0.00%          0       0.0
           sas3           0       0.0    0.00%          0       0.0
           sax           14     301.6    0.06%         39       0.5
           software   83440   25790.4    4.84%        129     131.5
           swift      74861  134918.0   25.31%      12481    1883.3
           vela5b         1       0.0    0.00%          0       0.0
           xmm         6275   14876.4    2.79%       2363     490.4
           xte       214232  299154.3   56.12%       1149     348.9
           other        104       1.2    0.00%         19       0.5

           TOTAL:    425775  533033.1  100.00%      26511   53651.7

Note:     (i) Junk directories, as well as the top level of the ftp area, are
          not explicitly listed due to their low usage statistics, but these
          transfers have been included in the "other" category.

          (ii) The breakdown by mission of data copied from the retrieve area
          cannot be directly estimated, but the breakdown by mission of data
          tarred and placed in the retrieve area can be: of 115.743 GB of
          files that were tarred, the fractions were:

          32.739% were XMM-Newton data, 
          27.193% were RXTE data,           
          24.136% were ASCA data, 
          10.608% were Swift data, 
          3.280% were Chandra data, 
          0.967% were ROSAT data, 
          0.203% were Integral data, and 
          0.554% were BeppoSAX data (99.680% total)

          (iii) The cossc ftp statistics are included in the compton stats.

          ^^ Astro-E2 Project testing
          ** GLAST Project testing