Inspection of dewars before helium filling
![](https://cdn.sci.esa.int/documents/33622/35366/1567218193284-Remplissage_CU1_69-410.jpg)
Date: 20 April 2009
Satellite: Herschel
Depicts: Dewar with liquid helium
Location: Cleanroom of S5B building, CSG, Kourou, French Guiana
Copyright: ESA-CNES-Arianespace / Optique Vidéo du CSG - P. Baudon
Last Update: 1 September 2019