Odin is a multinational atmosphere-studying satellite mission which launched on 20 February 2001 and remains operational.
|Orbit Height||620 km|
|Orbit Type||Sun-synchronous polar|
Odin is part of ESA's Third Party Missions programme, in which ESA has an agreement to distribute data products from the mission.
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).
SMR (Submillimeter wave Radiometer)
SMR is a passive microwave limb sounder.
|Type||Single sideband heterodyne receivers (use of InP material)|
118.25 - 119.25 GHz, 486.1 - 503.9 GHz, 541 - 580.4 GHz
100 MHz to 1 GHz
0.1 MHz to 1 MHz
1 K in 1 MHz with S/N = 5 after 15 minutes
Cooled Schottky mixers
LO based on Gunn diodes and frequency multipliers
Cooled HEMT low noise amplifiers
two 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.
280 - 800 nm
1 nm from 300-450 nm, < 2nm from 450-800 nm
perpendicular to the orbit plane (horizontal)
0.02º (vertical) x 0.75º (horizontal) corresponding to 1 km x 40 km on Earth
1 km at the limb
aligned with SMR boresight
Si CCD array (1353 x 286 pixels)
Species to be detected
O3, NO2, BrO, OCLO, O2, aerosols
Bandpass filter center wavelengths
1.263 µm, 1.273 µm, 1.520 µm
10 nm (1.263 and 1.273), 40 nm (1.520)
118 km (vertical) x 2 km (horizontal)
1 km in the vertical direction
23 mm diameter
Detector Type (linear arrays with hybrid multiplexers)
3 InGaAs, each detector has 128 pixels
Detector Pointing Direction
in the orbit plane (vertical)
-40ºC (or less)
Temperature stability during exposure
The following data collections are available for the Odin mission: