Advanced ISS Air Monitoring — The ANITA and ANITA2 Missions

The JPL ENose: Results of a Six Month Monitoring Period on the International Space Station

“…Analysis has also shown that there are occasional releases of Freon 218 (perfluoropropane) of 10 -100 ppm as well as formaldehyde, methanol and at least one release of ethanol. Both the humidity rise and fall and the releases of Freon 218 are consistent with data reported by the developers of the European Space Agency experimental instrument, ANITA (ANalyzing InTerferometer for Ambient air) [5].…”

The JPL ENose: Results of a Six Month Monitoring Period on the International Space Station

“…Initial analysis also showed that there are occasional releases of Freon 218 (perfluoropropane) of 10 -100 ppm. Both the humidity rise and fall and the releases of Freon 218 are consistent with data reported by the developers of the European Space Agency experimental instrument, ANITA (ANalyzing InTerferometer for Ambient air) [5]. This paper will discuss the data acquired by the ENose during its period of operation on the EXPRESS Rack on ISS, results of on-board data analysis, and compare those results to ground validation that was done on the JPL Electronic Nose before delivery for launch.…”

Status and inspiration on the development of the air monitoring system ANITA for European Space Agency

“…Based on the stability of ANITA instrument and the effective baseline drift compensation in analysis software, the background spectrum is set to be updated every 12 hours in order to minimize the cycle time. As a compromise between the need for short cycle time on the hand and the allocation of time for signal integration and air sample update on the other hand, the cycle time of each measurement includes one minute of signal integration time and two minutes of response time [5].…”