GipsyX/RTGx, a new tool set for space geodetic operations and research

GipsyX/RTGx is the Jet Propulsion Laboratory’s (JPL) next generation software package for positioning, navigation, timing, and Earth science using measurements from three geodetic techniques: Global Navigation Satellite Systems (GNSS), Satellite Laser Ranging (SLR), and Doppler Orbitography and Radi...

Full description

Saved in:
Bibliographic Details
Published in:Advances in space research 2020-08, Vol.66 (3), p.469-489
Main Authors: Bertiger, Willy, Bar-Sever, Yoaz, Dorsey, Angie, Haines, Bruce, Harvey, Nate, Hemberger, Dan, Heflin, Michael, Lu, Wenwen, Miller, Mark, Moore, Angelyn W., Murphy, Dave, Ries, Paul, Romans, Larry, Sibois, Aurore, Sibthorpe, Ant, Szilagyi, Bela, Vallisneri, Michele, Willis, Pascal
Format: Article
Language:English
Subjects:
DORIS
GNSS
Multi-technique space geodesy
Orbit determination and satellite clocks
Precise Point Positioning (PPP)
SLR
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:GipsyX/RTGx is the Jet Propulsion Laboratory’s (JPL) next generation software package for positioning, navigation, timing, and Earth science using measurements from three geodetic techniques: Global Navigation Satellite Systems (GNSS), Satellite Laser Ranging (SLR), and Doppler Orbitography and Radiopositioning Integrated by Satellite (DORIS); with Very Long Baseline Interferometry (VLBI) under development. The software facilitates combined estimation of geodetic and geophysical parameters using a Kalman filter approach on real or simulated data in both post-processing and in real-time. The estimated parameters include station coordinates and velocities, satellite orbits and clocks, Earth orientation, ionospheric and tropospheric delays. The software is also capable of full realization of a dynamic terrestrial reference through analysis and combination of time series of ground station coordinates. Applying lessons learned from its predecessors, GIPSY-OASIS and Real Time GIPSY (RTG), GipsyX/RTGx was re-designed from the ground up to offer improved precision, accuracy, usability, and operational flexibility. We present some key aspects of its new architecture, and describe some of its major applications, including Real-time orbit determination and ephemeris predictions in the U.S. Air Force Next Generation GPS Operational Control Segment (OCX), as well as in JPL’s Global Differential GPS (GDGPS) System, supporting User Range Error (URE) of
ISSN:0273-1177
1879-1948
DOI:10.1016/j.asr.2020.04.015