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Microwave Instrument for the Rosetta Orbiter (MIRO)

NSSDCA ID: 2004-006A-04

Mission Name: Rosetta
Principal Investigator:Dr. Samuel Gulkis


The Microwave Instrument for the Rosetta Orbiter (MIRO) is a microwave spectrometer designed with the following scientific objectives: 1) measure absolute abundance's of major volatile species; 2) characterize the fundamental isotope ratios, 3) quantify the surface outgassing rate; 4) measure the nucleus subsurface temperature and kinetic velocity; 5) measure subsurface temperature of asteroid targets; and 6) search for low levels of gas in the asteroid environment. MIRO is a dual-frequency, heterodyne receiver which can operate simultaneously as both a continuum and very high spectral resolution line receiver. The center band frequencies are 236 GHz (1.3 mm) and 562 GHz (0.5 mm). MIRO is pretuned to observe 8 transitions of 4 molecules including water, carbon monoxide, ammonia and methanol.

Alternate Names

  • MIRO
  • Rosetta/MIRO
  • urn:esa:psa:context:instrument:ro.miro

Funding Agency

  • European Space Agency (International)


  • Planetary Science: Small Bodies

Additional Information

Questions and comments about this experiment can be directed to: Dr. David R. Williams



NameRoleOriginal AffiliationE-mail
Dr. Mark HofstadterGeneral ContactNASA Jet Propulsion
Dr. Samuel GulkisPrincipal InvestigatorNASA Jet Propulsion

Selected References

  • Rickman, H., and L. Jorda, Comet 46P/Wirtanen, the target of the Rosetta mission, Adv. Space Res., 21, No. 11, 1491-1504, doi:10.1016/S0273-1177(97)00942-3, 1998.
  • Gulkis, S., et al., MIRO: Microwave Instrument for Rosetta Orbiter, Space Sci. Rev., 128, 561-597, doi:10.1007/s11214-006-9032-y, 2007.
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