[IGSSTATION-248]: HRAO: antenna change and short data interruption

[Oivind Ruud]

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IGS Station Mail          19 Nov 15:11:05 PST 2004      Message Number 248
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Author: Oivind Ruud, UNAVCO

Dear Colleagues,

The antenna at the Hartebeesthoek RAO in Krugersdorp, South Africa (HRAO) has been
replaced with a new Ashtech antenna. A new IGS log will be submitted shortly. This
new log will also reflect corrected dates for INTERNAL clock and EXTERNAL (H-Maser)
frequency standard periods, and to reflect that there was never a radome installed
over any antenna at this site.

Data publishing is temporarily halted till we can ascertain the correct replacement
antenna model for RINEX headers and IGS log. Except for data collected while the old,
broken antenna was still in place, all backlogged data will be published. We
apologize for any inconvenience this outage may cause.

Maintenance and operations of the HRAO station is a collaborative effort supported by
JPL, UNAVCO, and the Hartebeesthoek RAO in Krugersdorp, with funding provided by
NASA's Earth Science Enterprise.

Best regards,

    -Oivind Ruud