Attitude and Spin Period of Space Debris Envisat Measured by Satellite Laser Ranging.

The article reports on the April 8, 2012 end of the Environmental Satellite (Envisat) mission. A discussion of range measurements to the satellite that allowed determination of the attitude and the spin period of Envisat during seven months of 2013 which were performed by Satellite Laser Ranging (SLR) stations, and found the spin axis of the satellite is 2.52 meters and causes the meter-scale oscillations of the range measurements between the ground SLR system and the satellite, is presented.