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NOMAD Mission objective … Mission profile … Nadir and Occultation for MArs Discovery ESA’s ExoMars 2016 mission, scheduled to arrive at Mars in October 2016, consists of a Trace Gas Orbiter (TGO) plus an entry, descent and landing demonstrator module (EDM), known as Schiaparelli. The main objectives of this mission are to search for evidence of methane and other trace atmospheric gases that could be signatures of active biological or geological processes and to test key technologies in preparation for ESA's contribution to subsequent missions to Mars. Launchwindow March 14 th – 25 th 2016 Launchsite Baikonur Cosmodrome (Kazakhstan) on a Proton launcher Arrival at Mars mid October 2016 Release of Schiaparelli from TGO on October 16th, 2016 TGO insertion in Mars Orbit on October 19 th , 2016 1 year aerobraking phase till December 2017 TGO science operation start in December 2017 End of mission TGO: December 2022 Trace Gas Orbiter spacecraft at a glance… Designed by ESA, built by Thales Alenia Space (Cannes, F) Spacecraft dimensions 3.2m×2m×2m with solar wings spanning 17.5m tip-to-tip Total satellite mass 4332 kg (incl. 112 kg of science payload and 600 kg Schiaparelli) X-band system with 2.2m high-gain antenna and 3 low-gain antennas for communication with Earth Electra UHF band transceivers with a single helix antenna for communication with rovers & landers. Science instrument package: Atmospheric Chemistry Suite (ACS); Colour and Stereo Surface Imaging System (CaSSIS); Fine Resolution Epithermal Neutron Detector (FREND); Nadir and Occultation for Mars Discovery (NOMAD)

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Page 1: NOMAD - OIP · NOMAD … in search of traces of life! T he NOMAD instrument is a 3-channel spectrometer suite to conduct a spectroscopic survey of Mars’atmosphere in

NOMAD

Mission objective …

Mission profile …

Nadir and Occultation for MArs Discovery

ESA’s ExoMars 2016 mission, scheduled to arrive at Mars in

October 2016, consists of a Trace Gas Orbiter (TGO) plus anentry, descent and landing demonstrator module (EDM),known as Schiaparelli.

The main objectives of this mission are to search for

evidence of methane and other trace atmospheric gasesthat could be signatures of active biological or geologicalprocesses and to test key technologies in preparation forESA's contribution to subsequent missions to Mars.

Launchwindow March 14th – 25th 2016 Launchsite Baikonur Cosmodrome (Kazakhstan) on a Proton launcher Arrival at Mars mid October 2016 Release of Schiaparelli from TGO on October 16th, 2016 TGO insertion in Mars Orbit on October 19th, 2016 1 year aerobraking phase till December 2017 TGO science operation start in December 2017 End of mission TGO: December 2022

Trace Gas Orbiter spacecraft at a glance… Designed by ESA, built by Thales Alenia Space (Cannes, F)

Spacecraft dimensions 3.2m×2m×2m with solar wings spanning 17.5m tip-to-tip Total satellite mass 4332 kg (incl. 112 kg of science payload and 600 kg Schiaparelli) X-band system with 2.2m high-gain antenna and 3 low-gain antennas for communication with Earth Electra UHF band transceivers with a single helix antenna for communication with rovers & landers. Science instrument package:

Atmospheric Chemistry Suite (ACS); Colour and Stereo Surface Imaging System (CaSSIS); Fine Resolution Epithermal Neutron Detector (FREND); Nadir and Occultation for Mars Discovery (NOMAD)

Page 2: NOMAD - OIP · NOMAD … in search of traces of life! T he NOMAD instrument is a 3-channel spectrometer suite to conduct a spectroscopic survey of Mars’atmosphere in

NOMAD … in search of traces of life!

The NOMAD instrument is a 3-channel spectrometer suite to conduct

a spectroscopic survey of Mars’ atmosphere in the UV, visible and IRspectral ranges. This broad coverage of the instrument enables thedetection of the components of the Martian atmosphere (CH4,O3,trace species, isotopes, etc) even in low concentrations. In addition toidentifying the constituents of the Martian atmosphere, NOMAD willalso map their locations.

The measurements will be carried out in solar occultation, i.e. the

instrument points toward the Sun when the Orbiter moves at the darkside of Mars, as well as in nadir mode, i.e. looking directly at thesunlight reflected from the surface and atmosphere of Mars.

Initiated by ESA and Belgium’s Belgian Federal Science Policy

Office (BELSPO).

NOMAD was built by an international consortium led by IASB-

BIRA [B] as Principle Investigator and OIP Sensor Systems asIndustrial Prime. Lambda-X [B] was subcontractor.

OIP was responsible for the optical design and the Assembly,

Integration and Verification (AIV) of the payload (Phase B/C/D).Project is funded by ESA/PRODEX.

International partnership …

A 3-channel spectrometer suit Combination of flight-proven concepts and innovations based on

existing and proven instrumentation A total of 5 optical apertures Wavelength range: 200-650nm & 2.3-4.3µm Mass 26kg, envelope 40x53x37cm³ (HxLxW) Power 36W average; 48.7W peak 1553 interface for HouseKeeping data; SpaceWire for Science data Data rate/volume (per nominal day of 12 orbits):

HK (1553) = 6.64Mbit/day Science (SpW) = 2525Mbit/day

Passive cooling Developed by 12 countries and 53 partners

NOMAD in numbers …