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                              IGS DATA CENTER
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Short  Name                :  HRAO

Institution                :  Hartebeesthoek Radio Astronomy Observatory

Function within IGS        :  Regional Data Center for Africa

Mail Address               :  HartRAO
                              PO BOX 443
                              Krugersdorp
                              1740
                              South Africa

Contact                    :  Ludwig Combrinck

Telephone                  :  +27 (012) 326-0742

Fax                        :  +27 (012) 326-0756

E-Mail                     :  ludwig@ludwig.hartrao.ac.za
                              or ludwig@bootes.hartrao.ac.za

Internet Address           :  ludwig.hartrao.ac.za (192.96.5.45) : ftp

Telnet Access              :  none

FTP Access                 :  anonymous

WWW Access              :http://www.hartrao.ac.za/geodesy/geodesy_index



Access Restrictions        :  read only

Computer/Operating System  :  SUN SPARC 4/SUNOS
                              PC Pentium II/LINUX 2.03

Amount of data on line     :  Since Jan 1 1998


Other important information:  Users can access time series plots of some
                              of the stations via the web page. Any requests
                              for additional stations or products to be added,
                              which will benefit the geodetic commmunity
                              are welcomed.

List of stations served (IGS) :

              :  HRAO (HartRAO, Hartebeesthoek, South Africa [HRAO/JPL])
              :  HARK (SAC, Hartebeesthoek, South Africa [CNES])
              :  SUTH (SAAO, Sutherland, South Africa [HRAO/JPL])
              :  ASC1 (Ascension Island [JPL])
              :  MALI (Malindi, Kenya [ESA/ESOC])
              :  KERG (Port aux Francais, Kerguelen Islands [CNES])
              :  DAV1 (Davis, Antarctica [AUSLIG])
              :  OHIG (O'Higgins, Antarctic Peninsula [BKG])
              :  VESL (SANAE IV, Antarctica [AWI])
              :  GOUG (Gough Island [AWI])

Regional station (to be upgraded to an IGS station later this
year)

             :  NAMI (Windhoek, Namibia [HRAO/JPL])


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                          DIRECTORY STRUCTURE
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Directory                 Filenames           Description
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rinex/YYYY/DDD/           ssssDDD0.YYo.gz     Compressed RINEX obs files
                                              for stations 'ssss',
                                              day 'DDD', year 'YY'

                          eigsDDD0.YYn.gz     Compressed IGS RINEX nav
                                              files
                                              for day 'DDD', year 'YY'

products/WWWW/            igsWWWWD.sp3.gz     Compressed IGS precise
                                              ephemeris

                                              for GPS week 'WWWW' and
                                              day 'D' in SP3 format,
                                              'D'=7: Full week

pub/holdings/YYYY/        check_YY.hrao       Summary of RINEX observation
                                              files held.

                          check_import.hrao   Latest running summary,
                                              updated daily, downloaded by
                                              IGSCB

pub/logs/                 ssssYYMM            Latest IGS log files
                                              for station 'ssss' year 'YY'
                                              and month 'MM'

pub/utilities             gzip.doc            File archive utilities
                          gzip.exe
                          dos2unix
                          unix2dos
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