1998-067QZ - Norad ID: 45256
| Spacetrack Directory Name | HARP |
| Alternative name | 1998-067QZ |
| Orbit launches |
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| Deorbitation date |
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| Days in orbit | 8536 |
| Country/organisation of origin | USA (US) |
| Starting point | TYMSC (Baikonur Cosmodrome, Kazakhstan) |
| Perigee | 355 km |
| Apogee | 362 km |
Mission is to measure the microphysical properties of cloud water and ice particles. HARP is a precursor for the new generation of imaging polarimeters to be used for the detailed measurements of aerosol and cloud properties. Space validation of new technology required by the NASA Decadal Survey Aerosol-Cloud-Ecosystem (ACE) mission. Prove the on-flight capabilities of a highly accurate wide FOV hyper-angle imaging polarimeter for characterizing aerosol & cloud properties. Prove that CubeSat technology can provide science-quality Earth Sciences data. The HARP payload is a wide FOV imager that splits 3 spatially identical images into 3 independent polarizers and detector arrays.