M1/M2 Distance Measurements
Date: 16 July 2008
Satellite: Herschel
Depicts: Spacecraft during M1/M2 distance measurements
Location: Cleanroom at ESTEC, Noordwijk, The Netherlands
Copyright: ESA
After the completion of the mechanical test campaign the optomechanical stability of the telescope was verified with M1/M2 distance measurements. The measurements were made using a high precision laser tracker device to determine the distance between the primary and secondary mirrors (M1 and M2). The device is seen in the foreground on the left.
Last Update: 1 September 2019
