Odin - Earth Online

Featured

Remote sensing data map impacts of natural hazards

As climate change increases the frequency and severity of natural disasters, remote sensing data can warn about extreme events and help tackle emergency situations.

Showcasing the atmosphere-studying Odin mission

Learn about the Odin mission in our new infographic.

International collaboration: Summarising ESA’s Third Party Missions

ESA’s Third Party Missions programme consists of more than 50 missions from around the world. Learn more about the Third Party Missions in this video.

Satellites expand research on Space Weather and Sun-Earth Interactions

Earth observation data provide vital warnings about the impact of solar activity and strive to unravel the influence the Sun has on Earth’s system.

Atmosphere-studying Odin mission enjoys ongoing success

More than two decades after it began operations, the Odin remote sensing satellite is continuing to make strong contributions to high-impact atmospheric science.

About Odin

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

*Mission Parameters*
Orbit Height	620 km
Orbit Type	Sun-synchronous polar
Orbit Inclination	98.2°

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*
Type	Single sideband heterodyne receivers (use of InP material)
Frequencies	118.25 - 119.25 GHz, 486.1 - 503.9 GHz, 541 - 580.4 GHz
Bandwidth	100 MHz to 1 GHz
Resolution	0.1 MHz to 1 MHz
Sensitivity	1 K in 1 MHz with S/N = 5 after 15 minutes
Mixers	Cooled Schottky mixers
Local Oscillators	LO based on Gunn diodes and frequency multipliers
LNA	Cooled HEMT low noise amplifiers
Spectrometers	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.

*OSIRIS Instrument Specifications*
UV/VIS Spectrograph
Wavelength	280 - 800 nm
Wavelength Resolution	1 nm from 300-450 nm, < 2nm from 450-800 nm
Slit Orientation	perpendicular to the orbit plane (horizontal)
FOV	0.02º (vertical) x 0.75º(horizontal) corresponding to 1 km x 40 km on Earth
Spatial Resolution	1 km at the limb
Pointing Direction	aligned with SMR boresight
AD Converter	14 bit
Detector Type	Si CCD array (1353 x 286 pixels)
Species to be detected	O₃, NO₂, BrO, OCLO, O₂, aerosols
IR Imager
Bandpass filter center wavelengths	1.263 µm, 1.273 µm, 1.520 µm
Bandwidth (FWHM)	10 nm (1.263 and 1.273), 40 nm (1.520)
FOV	118 km (vertical) x 2 km (horizontal)
Spatial Resolution	1 km in the vertical direction
Telescope Aperture	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)
Detector Temperature	-40ºC (or less)
Temperature stability during exposure	±0.1ºC

Odin Data

DATA DESCRIPTION

The following data collections are available for the Odin mission:

Odin INSTRUMENTS

Odin DATA