Nadir and Occultation for Mars Discovery
| Operator | European Space Agency |
|---|---|
| Manufacturer | Belgian Institute for Space Aeronomy |
| Instrument type | spectrometer |
| Function | atmospheric composition |
| Mission duration | Planned: 7 years Elapsed: 9 years, 3 months, 2 days |
| Began operations | 9 April 2018 |
| Properties | |
| Mass | 28.86 kg |
| Spectral band | UV to visible |
| Host spacecraft | |
| Spacecraft | ExoMars Trace Gas Orbiter |
| Operator | ESA |
| Launch date | 14 March 2016, 09:31 UTC |
| Rocket | Proton-M/Briz-M |
| Launch site | Baikonur 200/39 |
| COSPAR ID | 2016-017A |
Nadir and Occultation for MArs Discovery (NOMAD) is a 3-channel spectrometer on board the ExoMars Trace Gas Orbiter (TGO) launched to Mars orbit on 14 March 2016.
NOMAD is designed to perform high-sensitivity orbital identification of atmospheric components, concentration and temperature, their sources, loss, and cycles. It measures the sunlight reflected from the surface and atmosphere of Mars, and it analyses its wavelength spectrum to identify the components of the Martian atmosphere that may suggest a biological source. The Principal Investigator is Ann Carine Vandaele, from the Belgian Institute for Space Aeronomy, Belgium.