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Iris US

Interface Region Imaging Spectrograph


Designation 39197 / 13033A
Launch date 28 Jun 2013
Country of origin United States
Mission UV Astronomy
Perigee/Apogee 629/669 km
Inclination 97.9°
Period 97.6 min
Launch vehicle Pegasus XL #43

Launch originaly planned in Dec 2012.

IRIS will make detailed measurements of the flow of energy and plasma through the Sun's atmosphere and heliosphere. The IRIS mission will open a window of discovery into a crucial gap in current solar observational capabilities.
Has a 20cm telescope.

Owned and operated by NASA's Goddard Space Flight Center, part of the Explorer program.

External resources


sat-index articles

n2yo.com tracking

Technical data


Prime contractor Lockheed Martin
Mass at launch 200 kg
Dry mass  
Solar array  
DC power  
Design lifetime  

Downlink on 2220.8 MHz over downlink stations only.

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