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Latest CYGNSS Status (as of 2/24/17)

All 8 spacecraft of the CYGNSS constellation (launched Dec. 15, 2016) are performing nominally. "First light" occurred on Jan. 4, 2017, when the first Delay Doppler Map was acquired by spacecraft FM03 over the South Atlantic Ocean east of Brazil. At that time the spacecraft was still Sun-pointed, but when it was at local noon, its orientation and location in the orbit allowed the Delay Doppler Mapping Instrument (DDMI) to correctly receive reflected GPS signals. Spacecraft science orientation and science data collection was achieved on Feb. 15, 2017.

Currently 7 of the 8 spacecraft are in science orientation with the DDMI science antennas pointing nadir, collecting science data while spacecraft FM01 was just placed in high drag orientation to begin optimizing the fleet's spacing in the orbit. All on-orbit subsystems are performing to specification. The CYGNSS Post Launch Acceptance Review is scheduled for March 23, 2017.

firstlight

Related Papers

CYGNSS Abstract

The CYGNSS Nanosatellite Constellation Hurricane Mission

The NASA EV-2 Cyclone Global Navigation Satellite System (CYGNSS) Mission

CYGNSS Mission Overview and Implementation Update

CYGNSS Mission Overview and Preflight Update

 

Related Links

University of Michigan: CYGNSS

NASA's CYGNSS blog

Southwest Research Institute

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