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GPS Receiver On-Orbit Performance for the GOES-R SpacecraftThis paper evaluates the on-orbit performance of the first civilian operational use of a Global Positioning System Receiver (GPSR) at a geostationary orbit (GEO). The GPSR is on-board the newly launched Geostationary Operational Environmental Satellite (GOES-R). GOES-R is the first of four next generation GEO weather satellites for NOAA, now in orbit GOES-R is formally identified as GOES-16. Among the pioneering technologies required to support its improved spatial, spectral and temporal resolution is a GPSR. The GOES-16 GPSR system is a new design that was mission critical and therefore received appropriate scrutiny. As ground testing of a GPSR for GEO can only be done by simulations with numerous assumptions and approximations regarding the current GPS constellation, this paper reveals what performance can be achieved in using on orbit data. Extremely accurate orbital position is achieved using GPS navigation at GEO. Performance results are shown demonstrating compliance with the1007575 meter and 6 cms radial/in-track/cross-track orbital position and velocity accuracy requirements of GOES-16. The aforementioned compliance includes station-keeping and momentum management maneuvers, contributing to no observational outages. This performance is achieved by a completely new system design consisting of a unique L1 GEOantenna, low-noise amplifier (LNA) assembly and a 12 channel GPSR capable of tracking the edge of the main beam and the side lobes of the GPS L1 signals. This paper presents the definitive answer that the GOES-16 GPSR solution exceeds all performance requirements tracking up to 12 satellites and achieving excellent carrier-to-noise density (C/N0). Additionally, these performance results show the practicality of this approach. This paper makes it clear that all future GEO Satellites should consider the addition of a GPSR in their spacecraft design, otherwise they may be sacrificing spacecraft capabilities and accuracy along with incurring increased and continual demand on ground support.
Document ID
20170004849
Document Type
Conference Paper
Authors
Winkler, Stephen (Lockheed Martin Space Systems Co. Denver, CO, United States)
Ramsey, Graeme (Lockheed Martin Space Systems Co. Denver, CO, United States)
Frey, Charles (Lockheed Martin Space Systems Co. King of Prussia, PA, United States)
Chapel, Jim (Lockheed Martin Space Systems Co. Denver, CO, United States)
Chu, Donald (Chesapeake Aerospace, LLC Grasonville, MD, United States)
Freesland, Douglas (ACS Engineering Corp. Greenbelt, MD, United States)
Krimchansky, Alexander (NASA Goddard Space Flight Center Greenbelt, MD United States)
Concha, Marco (ASRC Federal Space and Defense Greenbelt, MD, United States)
Date Acquired
June 1, 2017
Publication Date
May 29, 2017
Subject Category
Spacecraft Instrumentation and Astrionics
Report/Patent Number
GSFC-E-DAA-TN41924
Meeting Information
International ESA Conference on Guidance, Navigation & Control Systems(Salzburg)
Funding Number(s)
CONTRACT_GRANT: NNG09HR00C
CONTRACT_GRANT: NNG15CR65C
CONTRACT_GRANT: NNG13CR48C
Distribution Limits
Public
Copyright
Public Use Permitted.
Keywords
GEO GPS

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