[IGSMAIL-6877] Deactivation of GPS-36 with SLR retroreflectors

[CODE]

Author: Krzysztof Sosnica/AIUB/CODE

Dear colleagues,

The last GPS satellite equipped with the laser retroreflector array, 
namely GPS-36 (PRN: 6, COSPAR: 9401601), has been recently deactivated.
The Center for Orbit Determination in Europe (CODE) is, thus, not 
providing the SLR orbit predictions for this satellite anymore.
The ILRS stations track now the whole GLONASS constellation following 
the resolution of the 18th International Laser Workshop in Fujiyoshida, 
Japan. Thus, we provide daily SLR Quick-Look Residual Analysis Reports 
including all GLONASS satellites and none of the GPS satellites.

Sincerely,
Krzysztof Sosnica
CODE, Astronomical Institute, University of Bern, Switzerland
sosnica at aiub.unibe.ch