Summary of HEASARC ftp+http file transfer statistics in the month of April 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 = 131.9 GB + 340.6 GB = 472.5 GB AND FTP TRANSFERS FROM ALL COSSC DIRS = 1.15 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 3938 6.98 5.25% 9.34 7.02% compton 2177 1.25 0.94% 1.25 0.94% euve 56 1.37 1.03% 1.37 1.03% heasarc 779 1.60 1.20% 1.60 1.20% retrieve 342 16.31 12.26% ---- ----- rosat 1719 2.66 2.00% 3.49 2.62% software 2586 27.06 20.34% 27.06 20.34% xmm 3403 5.54 4.16% 5.95 4.47% xte 168283 70.12 52.70% 82.16 61.75% subtotal of 132.89 99.88% 132.22 99.38% 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 Jun ----------------------------------------------------------------------------- * 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 7 0.1 0.00% asca 3938 6984.8 5.25% 535 31.5 astroe 29 1.8 0.00% bbxrt 11 0.3 0.00% caldb 1151 24.8 0.02% chandra 0 0.0 0.00% compton 2177 1249.7 0.94% 20 0.8 copernicus 4 0.1 0.00% cosb 0 0.0 0.00% dxs 0 0.0 0.00% einstein 15 10.7 0.01% 17 5.7 euve 56 1374.1 1.03% 1 0.1 exosat 418 6.0 0.00% 70 0.7 fits_info 70 5.0 0.00% 49 221.6 ginga 38 8.0 0.01% 250 1.4 heao1 2 0.0 0.00% heao3 0 0.0 0.00% 1 0.1 heasarc 779 1602.2 1.20% 699 1419.1 hete2 4 1.4 0.00% htxs 0 0.0 0.00% oso8 0 0.0 0.00% retrieve 342 16307.2 12.26% 415 15191.7 rosat 1719 2664.2 2.00% 2234 57.9 sas2 3 0.1 0.00% sas3 0 0.0 0.00% sax 229 86.1 0.06% 4 0.1 software 2586 27064.5 20.34% 293 408.6 vela5b 5 4.3 0.00% 6 2.7 xmm 3403 5536.3 4.16% 170 62.7 xte 168283 70116.5 52.70% 642 239.4 other 42 0.2 0.00% 68 0.8 TOTAL: 185311 133048.3 100.00% 5474 17644.9 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 40.08 GB tarred, 73.86% were RXTE data, 14.48% ASCA data, 5.06% ROSAT data, 3.65% BeppoSAX data, and 2.53% XMM-Newton data. (**) The cossc ftp statistics are included here. ______________________________________________________________________________ Web directories relevant to HEASARC (all by http transfer) # of files # of Megabytes ab 12,102 79.1 argus 196 2.0 astrobrowse 244 3.8 audio 108,430 60810.6 classx 542 16.9 cgi-bin 37,068 643.8 db-perl 10,071 1219.2 docs 2,115,637 119805.3 fitsio 1,815 58.3 ftools 9,730 73.0 FTP 5,474 17644.9 the breakdown is given above hera 6,058 162.5 Images 5,172,003 37019.9 images 82,236 613.3 lheasoft 27,758 616.8 listserv 15,792 100.0 mail_archive 11,289 76.7 RPS 1,497 19.3 scripts 6,476 41.8 stats 2,575 56.9 Tools 3,519 450.5 topbase 999 21.5 Videos 26,196 24165.1 W3Browse 12,542 109.4 webspec 880 15.8 WebStars 1,104 6.4 wgacat 621 9.2 xanadu 3,372 378.7 xclasses 1,280 5.6 xstar 373 3.5 xte_weather 14,069 1649.6 Imagine the Universe 4,656,939 73644.4 MB