ACRIM III Instrument

Measurements and Applications

Measurements of solar luminosity and solar constant. Data used as record of time variation of total solar irradiance, from extreme UV through to infrared.

Instrument Summary

Full Name
Active Cavity Radiometer Irradiance Monitor
Status
No longer operational
Instrument Agencies
Maturity
Instrument Type
Earth radiation budget radiometers
Geometry
Instrument Technology
Solar irradiance monitor
Sampling
Sounding
Data Access
Open Access
Data Format
HDF-EOS

Performance Summary

Resolution
5 deg FOV
Swath
71 mins per orbit of full solar disk data
Accuracy
0.1% of full scale
Waveband
UV - MWIR: 0.15 - 5 µm
UV (~0.01 µm - ~0.40 µm)
VIS (~0.40 µm - ~0.75 µm)
NIR (~0.75 µm - ~1.3 µm)
SWIR (~1.3 µm - ~3.0 µm)
MWIR (~3.0 µm - ~6.0 µm)

Instrument Missions

ACRIMSAT - Active Cavity Radiometer Irradiance Monitor (1999 - 2013)

Instrument Measurements