Summary of HEASARC ftp+http file transfer statistics in the month of July 2002 (This includes legacy ftp & http stats, and cossc ftp stats for CGRO, and also includes Imagine the Universe legacy http statistics) _____________________________________________________________________________ TOTAL FTP+HTTP TRANSFERS FROM ALL LEGACY DIRS= 289.76GB + 172.89GB = 462.66GB AND FTP TRANSFERS FROM ALL COSSC DIRS= 1.08 GB _____________________________________________________________________________ THE MOST POPULAR (> 1 GB of data transferred) DIRECTORIES (COMBINED FTP STATS OF LEGACY & COSSC THIS MONTH): Raw Totals Corrected totals assuming files GB %Total(GB) % retrieved = % tarred GB %Total(GB) Directory: asca 2846 1.68 0.58% 3.02 1.04% compton 3108 1.59 0.55% 1.72 0.59% retrieve 360 15.30 5.26% --- --- rosat 2390 1.30 0.45% 1.85 0.64% software 4774 42.88 14.74% 42.88 14.74% xmm 2949 4.87 1.68% 5.37 1.84% xte 276803 221.44 76.14% 234.12 80.50% subtotal of 289.06 99.39% 288.96 99.35% above dirs ___________________________________________________________________________ 2001-2002 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 2001 52257* 184.68* 10910 0.60 130.71^ 315.40* Feb 181578* 166.91* 13694 0.35 133.69^ 300.60* Mar 35535* 136.98* 8978 0.25 137.73^ 274.71* Apr# 128551* 125.62* 14941 0.39 126.94^ 252.56* May+ 343076* 244.21* 19162 0.28 138.43^ 382.64* Jun+ 562103* 270.31* 4605 0.24 96.92^ 367.24* Jul~ 71816* 134.66* 4201 1.35 76.37^ 211.03* Aug 55343* 176.74* -- -- 80.49^ 257.23* Sep 93883* 207.66* 2742 1.08 98.70^ 306.36* Oct 49717* 270.69* 13426 2.45 139.43^ 410.13* Nov 101225* 184.16* 7135 0.80 143.51^ 327.68* Dec& 66804* 148.85* 6804 11.03 124.84^ 273.69* Jan 2002 235252* 215.23* 17410 12.47 189.51^ 404.75* Feb 59644* 157.28* 4517 13.12 174.92^ 332.20* Mar 123745* 221.63* 8454 11.83 261.58^ 483.20* Apr 185311* 133.05* 5474 17.64 340.57^ 473.61* May 80257* 142.02* 13648 15.85 348.39^ 490.41* Jun 192516* 178.65* 26388 9.99 180.82^ 359.47* Jul 300588* 290.84* 131191 21.75 172.89^ 463.73* ----------------------------------------------------------------------------- * includes cossc ftp stats ^ includes imagine http stats # A RAID failure on April 26-30 2001 meant that many datasets were offline + Increased by a large amount of RXTE data copied by UCSD in May and June 2001 ~ A RAID failure on July 28-31 2001 meant that many datasets were offline & Problems with the ftp server in December 2001 meant that data retrievals were made only using the http server for a period of about five days. After that time, users can retrieve using either the ftp or the http server. ____________________________________________________________________________ Detailed Breakdown of Current Month by 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 1 0.0 0.00% 13 0.8 asca 2846 1683.0 0.58% 667 961.3 astroe 16 19.4 0.01% 0 0.0 bbxrt 0 0.0 0.00% 1 0.0 caldb 45 7.8 0.00% 0 0.0 chandra 0 0.0 0.00% 0 0.0 compton 3108 1593.3 0.55% 135 21.1 copernicus 4 0.2 0.00% 0 0.0 cosb 0 0.0 0.00% 1 0.1 dxs 0 0.0 0.00% 0 0.0 einstein 31 0.8 0.00% 33 14.3 euve 715 899.6 0.31% 5265 291.8 exosat 5912 502.4 0.17% 164 7.7 fits_info 93 19.1 0.01% 153 30.6 ginga 1 0.0 0.00% 7 0.1 heao1 4 0.1 0.00% 28 0.3 heao3 3 8.4 0.00% 1 0.0 heasarc 388 244.6 0.08% 224 63.5 hete2 0 0.0 0.00% 0 0.0 htxs 9 2.3 0.00% 0 0.0 oso8 0 0.0 0.00% 2 0.1 retrieve 360 15295.6 5.26% 496 15533.8 rosat 2390 1297.6 0.45% 121185 4240.5 sas2 5 1.5 0.00% 10 0.1 sas3 0 0.0 0.00% 0 0.0 sax 99 74.1 0.03% 4 0.0 software 4774 42883.4 14.74% 1175 119.0 vela5b 0 0.0 0.00% 1 0.0 xmm 2949 4874.1 1.68% 344 165.7 xte 276803 221437.7 76.14% 1207 295.8 other 32 0.2 0.00% 75 1.0 TOTAL: 300588 290845.2 100.00% 131191 21747.5 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 44.91 GB tarred, 82.90% were RXTE data, 8.76% were ASCA data, 3.61% were ROSAT data, 3.24% were XMM-Newton data, 0.38% were BeppoSAX data, and 0.84% were CGRO data, (**) The cossc ftp statistics are included here. ______________________________________________________________________________ Web directories relevant to HEASARC (all by http transfer) # of files # of Megabytes ab 7,104 74.9 argus 177 1.7 astrobrowse 219 3.7 audio 32,268 19204.9 classx 405 3.8 cgi-bin 31,083 1054.3 db-perl 21,893 1311.2 docs 1,159,268 40446.0 fitsio 2,385 31.7 ftools 13,930 129.8 FTP 131,191 21747.5 the breakdown is given above grbcat 3,782 19.0 hera 6,619 186.8 Images 2,389,577 17982.5 images 44,849 408.9 lheasoft 36,024 822.6 listserv 41,347 261.0 mail_archive 13,358 96.2 RPS 1,811 24.3 scripts 6,643 26.0 StarTrax 250 1.0 stats 4,238 92.2 tipbase 251 12.0 Tools 4,261 484.7 topbase 2,816 204.5 Videos 19,185 18138.9 W3Browse 14,304 125.3 webspec 1,074 19.7 WebStars 1,012 5.3 wgacat 903 12.8 xanadu 3,619 595.6 xclasses 1,408 6.5 xstar 2,040 8.5 xte_weather 3,748 130.2 Imagine the Universe 2,812,936 48052.2