Space and ground segment performance of the FORMOSAT-3/COSMIC mission: four years in orbit

Details Space and ground segment performance of the FORMOSAT-3/COSMIC mission: four years in orbit Space and ground segment performance of the FORMOSAT-3/COSMIC mission: four years in orbit

Jan 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011amtd....4..599f&link_type=abstract

Atmospheric Measurement Techniques Discussions, Volume 4, Issue 1, 2011, pp.599-638

Computer Science

Sound

Scientific paper

The FORMOSAT-3/COSMIC (Constellation Observing System for Meteorology, Ionosphere, and Climate) mission consisting of six Low-Earth-Orbit (LEO) satellites is the world's first demonstration constellation using radio occultation signals from Global Positioning System (GPS) satellites. The radio occultation signals are retrieved in near real-time for global weather/climate monitoring, numerical weather prediction, and space weather research. The mission has processed on average 1400 to 1800 high-quality atmospheric sounding profiles per day. The atmospheric radio occultation soundings data are assimilated into operational numerical weather prediction models for global weather prediction, including typhoon/hurricane/cyclone forecasts. The radio occultation data has shown a positive impact on weather predictions at many national weather forecast centers. A proposed follow-on mission transitions the program from the current experimental research system to a significantly improved real-time operational system, which will reliably provide 8000 radio occultation soundings per day. The follow-on mission as planned will consist of 12 satellites with a data latency of 45 min, which will provide greatly enhanced opportunities for operational forecasts and scientific research. This paper will address the FORMOSAT-3/COSMIC system and mission overview, the spacecraft and ground system performance after four years in orbit, the lessons learned from the encountered technical challenges and observations, and the expected design improvements for the new spacecraft and ground system.

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