A dataset provided by the European Space Agency

Name ExoMars 2016 NOMAD Raw-level Data Product Collection
Mission ExoMars16
URL https://archives.esac.esa.int/psa/ftp/ExoMars2016/em16_tgo_nmd/data_raw
DOI https://doi.org/10.5270/esa-3mub4ea


NOMAD is a 3-channel spectrometer 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 analyses its wavelength spectrum to identify the components of the Martian atmosphere that may suggest a biological source.
This spectrometer consists of three channels: solar occultation (SO), limb nadir and occultation (LNO), and ultraviolet and visible spectrometer (UVIS). The first two channels work in the infrared (2.2 to 4.3 μm); the third channel (UVIS) works in the UV-visible range (0.2 to 0.65 μm), which is able to measure ozone, sulphuric acid, and perform aerosol studies. Measurements are carried out during solar occultation, i.e. the instrument points toward the sunset as the orbiter moves toward or away the dark side of Mars. It also measures in nadir mode, i.e. looking directly at the sunlight reflected from the surface and atmosphere of Mars. The Principal Investigator is Ann Carine Vandaele, from the Belgian Institute for Space Aeronomy (BIRA).

The Raw_Data Collection

The raw data collection contains the raw science and housekeeping data from the instrument and the data is released publicly on a daily basis with a six-month lag from the data being obtained. (Note LNO data is not yet publicly available so can not be downloaded from any time period) Physically the collection is organised by science phase, then orbit range in groups of 100 orbits, then orbit. Different data types e.g. HK plus science from different channels may be mixed in this time related directory. A description of the raw data products can be found in the NOMAD Experiment to Archive ICD (EAICD). This can be found under documents in the user interface or via the Document Collection in the PSA ftp distribution. A quick start guide can also be found at: NOMAD Quick Start Guide

Instrument NOMAD
Temporal Coverage 2016-03-05T00:00:00Z - 2030-12-31T23:59:59Z
Version 109.1
Mission Description

ExoMars 2016 Mission Overview

ExoMars 2016 was launched in March 2016 and consists of the Trace Gas Orbiter (TGO) and Schiaparelli, an entry, descent and landing demonstrator module. The primary goal of the mission is to detect trace gasses in the Martian atmosphere in particular to follow up on earlier detections of Methane.
Schiaparelli, the technology demonstration lander, did not reach the surface, therefore the only data archived was from the DREAMS instrument, which was obtained during the cruise phase of the mission. The Trace Gas Orbiter (TGO) entered science operations at Mars in April 2018 and has been operating nominally since. It has 4 instruments, CaSSIS, a 4 colour push frame camera, FREND, an epithermal neutron detector, and ACS and NOMAD which are high resolution spectrometers covering the UV to thermal IR range optimised for atmospheric studies. All instruments continue in good health apart from the Thermal Infrared (TIRVIM) channel on ACS.
TIRVIM stopped working on December 3rd, 2019 due to HW failure. Since then, it has been kept on to ensure thermal mode of the ACS but without producing science data. Housekeeping data is still being generated and archived as of today.

Mission Phases

Start TimeAcronymName
2016-03-14T00:00:00necpNear Earth Commissioning
2016-10-16T00:00:00mampMars Approach and Orbit Insertion
2016-10-21T00:00:00maopMars Arrival Orbit
2018-03-09T00:00:00cvpCommissioning and Verification
2018-04-21T00:00:00pspScience Phase
Creator Contact Ann Carine Vandaele
Date Published 2022-03-17T00:00:00
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2022-03-17T00:00:00, ExoMars 2016 NOMAD Raw-level Data Product Collection, 109.1. https://doi.org/10.5270/esa-3mub4ea