Imaging Ultraviolet Spectrograph (IUVS)
The Imaging Ultraviolet Spectrograph (IUVS) is a part of the Remote Sensing (RS) Package and measures global characteristics of the upper atmosphere and ionosphere via remote sensing.
- Provides global-scale measurements of major molecules, atoms, ions and isotopes in the Mars atmosphere & corona, while deriving key properties such as exobase and ionosphere altitudes
- IUVS provides major constraints on escape processes and measures the lower atmosphere
- Vertical profiles to characterize composition & structure
- Global images to characterize spatial distribution & variability
- Coronal Scans for “Hot Oxygen” and D/H ratio determination
- Stellar occultations for vertical CO2 profiles to characterize the underlying lower altitude atmosphere
Technical details and heritage:
- Imaging spectroscopy from 110-340 nm, with resolution of 0.5 – 1.0 nm.
- Vertical resolution of 6 km on limb, horizontal resolution of 200km
- Detectors: Image-intensified 2-D active pixel sensors
- Most recent heritage from AIM CIPS
- MAVEN IUVS observations of the aftermath of the Comet Siding Spring meteor shower on Mars
(Geophysical Research Letters article—published online June 2015)—Download PDF (726 KB)
- The Imaging Ultraviolet Spectrograph (IUVS) for the MAVEN Mission
(Space Science Reviews article—published online September 2014)—Download PDF (7MB)
Nick Schneider (LASP) is the instrument lead for the IUVS. For more about Schneider, visit: http://bit.ly/NSchneider.
[VIDEO] MAVEN’s Imaging Ultraviolet Spectrograph
MAVEN Science Community Workshop Presentation
(Dec. 2, 2012)