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Reprocessing of the Hartebeesthoek 2014 co-location survey
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<p>A local tie survey was carried out at Hartebeesthoek observatory (South Africa) in February 2014 by surveyors from Rural Development & Land Reform, University of KwaZulu-Natal, NASA and IGN. Hartebeesthoek observatory is one of the few sites in the world which currently hosts instruments from the four space geodesy techniques, namely DORIS, GNSS, SLR and VLBI. A first adjustment of the survey observations was carried out in 2014 and the tie vectors between instrument reference points were published.</p><p>As the precision of the VLBI axis offsets was requested by the International VLBI Service and a new version of the IGN adjustment software COMP3D was released, it was decided to reprocess the survey data of the main Hartebeesthoek observatory sub-site HartRAO. Indeed, the new software package allows processing in one step complex survey data, specifically in case of indirect determination of VLBI and SLR telescope reference points. The new processing strategy will be described and the tie vectors compared with 2014 results.</p>
Title: Reprocessing of the Hartebeesthoek 2014 co-location survey
Description:
<p>A local tie survey was carried out at Hartebeesthoek observatory (South Africa) in February 2014 by surveyors from Rural Development & Land Reform, University of KwaZulu-Natal, NASA and IGN.
Hartebeesthoek observatory is one of the few sites in the world which currently hosts instruments from the four space geodesy techniques, namely DORIS, GNSS, SLR and VLBI.
A first adjustment of the survey observations was carried out in 2014 and the tie vectors between instrument reference points were published.
</p><p>As the precision of the VLBI axis offsets was requested by the International VLBI Service and a new version of the IGN adjustment software COMP3D was released, it was decided to reprocess the survey data of the main Hartebeesthoek observatory sub-site HartRAO.
Indeed, the new software package allows processing in one step complex survey data, specifically in case of indirect determination of VLBI and SLR telescope reference points.
The new processing strategy will be described and the tie vectors compared with 2014 results.
</p>.
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