Observation Altitude (in kilometers) above Earth's Surface Horizontal Surface Distance (in kilometers) +/- .05 km +/- .05 km CZ-4B R/B 1/10/11 174.4 km 397.6 km CZ-4B R/B 1/11/11 174.4 km 918.1 km CZ-4B R/B 1/12/11 174.4 km 128.4 km CZ-4B R/B 1/13/11 157.7 km 784.3 km CZ-4B R/B 1/14/11 157.7 km 476.5 km CZ-4B R/B 1/17/11 140.9 km 1096 km