ROSINA's double focusing mass spectrometer (DFMS)
![](https://cdn.sci.esa.int/documents/34878/35534/1567216632560-Rosetta_ROSINA_DFMS_625.jpg)
Date: 09 May 2014
Satellite: Rosetta
Copyright: ESA/Rosetta/ROSINA/UBern/BIRA/LATMOS/LMM/IRAP/MPS/SwRI/TUB/UMich
The Rosetta Orbiter Spectrometer for Ion and Neutral Analysis (ROSINA) is a combination of two mass spectrometers and a pressure sensor:
- the Double Focusing Mass Spectrometer (DFMS)
- the Reflectron Time-of-Flight (RTOF) mass spectrometer
- the Comet Pressure Sensor (COPS)
This photo shows the DFMS mass spectrometer.
Last Update: 1 September 2019