| Date: | 2006-09-19 18:34:00 | |
| Sender: | Claudia Urschl <Claudia Urschl <claudia.urschl@aiub.unibe.ch>> | |
| Subject: | [SLR-Mail] No. 1492: GIOVE-A orbit update | |
| Author: | Claudia Urschl | |
| Content: | ******************************************************************************** SLR Electronic Mail 2006-09-19 18:34:00 UTC Message No. 1492 ******************************************************************************** Author: Claudia Urschl Subject: GIOVE-A orbit update Dear colleagues, since 3. September (DoY 245) SLR tracking of GIOVE-A is very difficult. There are, however, some SLR observations at DoY 251 and 251 and 259, which differ by about 1.5 km from the predictions. Assuming a velocity change at DoY 245 3:00 UTC of radial -100 mm/sec along track -10 mm/sec out of plane -260 mm/sec allows to fit the SLR obervations at the 5 meter level. A seven day prediction (DoY 260-267) based on the above assumptions can be found at: ftp://cddis.gsfc.nasa.gov/pub/slr/cpf_predicts/2006/giovea/giovea_cpf_060919_7621.cod Hope, you find GIOVE-A again! Best regards, Claudia Urschl -- _______________________________________________________________________ Claudia Urschl Phone : +41-31-631-3802 Astronomical Institute Fax : +41-31-631-3869 University of Bern E-mail : claudia.urschl@aiub.unibe.ch Sidlerstrasse 5 FTP : ftp://ftp.unibe.ch/aiub/ CH-3012 Bern Web : http://www.aiub.unibe.ch/ Switzerland _______________________________________________________________________ From: Claudia Urschl ******************************************************************************** |