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Title: Odinus  
Author: World Heritage Encyclopedia
Language: English
Subject: Version 1.0 Editorial Team/Spaceflight articles by quality log, Trinculo (moon), Prospero (moon), Portia (moon), Stephano (moon)
Publisher: World Heritage Encyclopedia


Mission type Orbiter
Operator European Space Agency
Spacecraft properties
Dry mass 500-600 kg
Start of mission
Launch date 2034 (proposed)
Neptune orbiter
Spacecraft component Freyja
Uranus orbiter
Spacecraft component Frey

Cosmic Vision

ODINUS (Origins, Dynamics, and Interiors of the Neptunian and Uranian Systems) is a space mission concept proposed to the European Space Agency's Cosmic Vision programme, consisting on a pair of orbiters. The ODINUS mission concept proposes to expand the Uranus orbiter and probe mission to twin spacecraft— dubbed Freyr and Freyja, the twin gods of the Norse pantheon.[1] Their primary mission would be to study Neptune and Uranus with one orbiter each.[2]


The following six instruments are considered essential to the mission:

  • Camera (Wide and Narrow Angle) - Designed to image the planet at the same level of detail as missions to the two gas giants have provided.
  • VIS-NIR Image Spectrometer
  • Magnetometer - To study the magnetic fields of Neptune.
  • Mass Spectrometer (Ions and Neutrals, INMS)
  • Doppler Spectro-Imager - To take seismic measurements.
  • Microwave Radiometer

The following two additional instruments are strongly desired by the mission proposers:

  • Energetic Neutral Atoms Detector - To complement the measurements of the INMS.
  • High-sensitivity Accelerometer - To be used in the atmospheric descent phase.


  1. ^ The ODINUS Mission Concept.
  2. ^ "The ODINUS Mission". December 4, 2013. Retrieved August 31, 2015. 

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