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Long March-4B Rocket Launches Two Satellites with Polarized Scanning Atmospheric Correctors Aboard

Sep 30, 2020

Long March-4B rocket carrying the HJ-2A and HJ-2B satellites lifted off from the Taiyuan Satellite Launch Center at 11:23 (Beijing Time) on Sept. 27.

Two Polarized Scanning Atmospheric correctors (or PSAC) developed by the Anhui Institute of Optics and Fine Mechanics (AIOFM), Hefei Institutes of Physical Science (HFIPS), were aboard the two satellites.

The PSAC can correct radiation error caused by atmosphere to help the main payload camera capturing much clearer and accurate quantitative image of land surface.

Data shows that all goes well as scheduled, indicating the two PSACs' normal operation. After a 20-day of on-orbit degassing mode, PSAC starts its on-orbit normal observation with all its inner systems open.

HJ-2 A/B Satellite plays an important role in Medium Resolution Optical Observation Constellation of the National Civil Space Infrastructure Remote Sensing Satellite System for environment and disaster's monitoring and predicting, which can be realized via these installed multispectral payloads.

Long March-4B rocket carrying HJ-2 A/B Satellite lifted off from the Taiyuan Satellite Launch Center (Image by AIOFM)

Research team working on the PSAC project (Image by AIOFM)

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