CEOS EO HANDBOOK – INSTRUMENT SUMMARY
- ACRIM III
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Full Name
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Active Cavity Radiometer Irradiance Monitor
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Status
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No longer operational
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Instrument Agencies
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NASA
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Maturity
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Instrument Type
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Earth radiation budget radiometers 
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Geometry
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Instrument Technology
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Solar irradiance monitor
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Sampling
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Sounding
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Data Access
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Open Access
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Data Format
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HDF-EOS
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Measurements and Applications
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Measurements of solar luminosity and solar constant. Data used as record of time variation of total solar irradiance, from extreme UV through to infrared.
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Resolution Summary
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5 deg FOV
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Swath Summary
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71 mins per orbit of full solar disk data
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Accuracy Summary
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0.1% of full scale
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Waveband Summary
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UV - MWIR: 0.15 - 5 µm
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| 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) |
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Instrument Measurements
Measurements Overview
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Instrument Missions
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