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About Odin

Odin is a multinational atmosphere-studying satellite mission which launched on 20 February 2001 and remains operational.

Mission Parameters
Orbit Height620 km
Orbit TypeSun-synchronous polar
Orbit Inclination98.2°

Odin is part of ESA's Third Party Missions programme, in which ESA has an agreement to distribute data products from the mission.

Odin Objectives

The Odin mission objectives are mainly astronomy and aeronomy applications (atmospheric research: observation of stratospheric ozone chemistry, mesospheric ozone science, summer mesospheric science, coupling of atmospheric regions).

Odin Instruments

SMR (Submillimeter wave Radiometer)

SMR is a passive microwave limb sounder.

SMR Instrument Specifications
TypeSingle sideband heterodyne receivers (use of InP material)
Frequencies118.25 - 119.25 GHz, 486.1 - 503.9 GHz, 541 - 580.4 GHz
Bandwidth100 MHz to 1 GHz
Resolution0.1 MHz to 1 MHz
Sensitivity1 K in 1 MHz with S/N = 5 after 15 minutes
MixersCooled Schottky mixers
Local OscillatorsLO based on Gunn diodes and frequency multipliers
LNACooled HEMT low noise amplifiers
Spectrometerstwo hybrid autocorrelators and one AOS (Acousto-Optic Spectrometer)


OSIRIS (Optical Spectrograph and Infrared Imaging System)

OSIRIS is an ultra violet/visible light/infra red limb sounder.

OSIRIS Instrument Specifications
UV/VIS Spectrograph
Wavelength280 - 800 nm
Wavelength Resolution1 nm from 300-450 nm, < 2nm from 450-800 nm
Slit Orientationperpendicular to the orbit plane (horizontal)
FOV0.02º (vertical) x 0.75º (horizontal) corresponding to 1 km x 40 km on Earth
Spatial Resolution1 km at the limb
Pointing Directionaligned with SMR boresight
AD Converter14 bit
Detector TypeSi CCD array (1353 x 286 pixels)
Species to be detectedO3, NO2, BrO, OCLO, O2, aerosols

IR Imager

Bandpass filter center wavelengths1.263 µm, 1.273 µm, 1.520 µm
Bandwidth (FWHM)10 nm (1.263 and 1.273), 40 nm (1.520)
FOV118 km (vertical) x 2 km (horizontal)
Spatial Resolution1 km in the vertical direction
Telescope Aperture23 mm diameter
Detector Type (linear arrays with hybrid multiplexers)3 InGaAs, each detector has 128 pixels
Detector Pointing Directionin the orbit plane (vertical)
Detector Temperature-40ºC (or less)
Temperature stability during exposure±0.1ºC

Odin Data


The following data collections are available for the Odin mission:



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