Part of the optical ground support equipment (OGSE) for the GRACE-FO mission – a reference plate for measuring the co-alignment of the triple-mirror assembly

Part of the optical ground support equipment (OGSE) for the GRACE-FO mission – a reference plate for measuring the co-alignment of the triple-mirror assembly
Part of the optical ground support equipment (OGSE) for the GRACE-FO mission – a reference plate for measuring the co-alignment of the triple-mirror assembly
The large-scale Laser Ranging and Metrology Test Facility (LRMT) at the DLR Institute of Space Systems in Bremen is a tool for measuring the distance between satellites.