| Date: | 2002-10-08 09:12:00 | |
| Sender: | Urs Hugentobler <urs.hugentobler@aiub.unibe.ch> <EDC slrreport account <slreport@dgfi.badw.de>> | |
| Subject: | [SLR-Report] No. 2204: CODE SLR-GPS QL-Report: Eclipsing Satellites | |
| Author: | Urs Hugentobler | |
| Content: | ******************************************************************************** SLR Electronic Report 2002-10-08 09:12:00 UTC Message No. 2204 ******************************************************************************** Author: Urs Hugentobler Subject: CODE SLR-GPS QL-Report: Eclipsing Satellites Dear colleagues, starting with the SLR-GPS Quicklook report that will be issued today eclipling satellites will be indicated with a flag ´E´ in the column following the PRN number. The flag appears if the SLR observations were acquired with the satellite in the Earth´s shadow or within 30 minutes after entering back into sunlight. Due to attitude motion of the GPS satellites in the shadow and after leaving of the shadow SLR residuals may become unusually large. The E-flag gives an indication whether the computed residuals may be thrusted or not. Appart from a flag ´E´ a flag ´X´ may occur indicating that the shadow detection algorithm failed and for the flagged satellite no check was possible. This flag should, of course, never occur... We hope that the new information included into the QL-Reports helps the SLR community to better interprete outliers in the residuals and to monitor the high quality of the acquired observations. With best regards Urs Hugentobler Heike Bock AIUB AAC From: EDC slrreport account ******************************************************************************** |