Acronyms

I've realized in the last few posts that I tend to use a lot of acronyms that maybe not everyone is aware of. So here is a brief glossary of acronyms that have or may show up on this page:

ISS - Imaging Sub-System (Cassini's camera)
VIMS - Visual and Infrared Mapping Spectrometer (Cassini's remote spectrometer)
INMS - Ion and Neutral Mass Spectrometer (Cassini's insitu spectrometer)
DISR - Descent Imager and Spectral Radiometer (the camera on Huygens)
GCMS - Gas Chromatograph and Mass Spectrometer (the insitu spectrometer on Huygens)
ACP - Aerosol Collector and Pyrolyzer (instrument on Huygens)
SSP - Surface Science Package (on Huygens)
DWE - Doppler Wind Experiment
OPNAV - OPtical NAVigation images used by Cassini to determine position by looking at known targets