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M1/M2 Distance Measurements

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
2-Dec-2021 06:09 UT

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