Results 11 to 20 of about 6,687 (290)

Sentinel-1A – First precise orbit determination results [PDF]

open access: yesAdvances in Space Research, 2017
Sentinel-1A is the first satellite of the European Copernicus programme. Equipped with a Synthetic Aperture Radar (SAR) instrument the satellite was launched on April 3, 2014. Operational since October 2014 the satellite delivers valuable data for more than two years. The orbit accuracy requirements are given as 5 cm in 3D.
Stefan Hackel   +2 more
exaly   +7 more sources

Precise Orbit Determination [PDF]

open access: yes, 2017
Precise Orbit Determination (POD) is an integral part for analyzing measurements from space geodetic techniques such as Satellite Laser Ranging (SLR) and Global Navigation Satellite Systems (GNSS) such as the Global Positioning System (GPS). In the last two decades, POD based on GPS data has furthermore been established as one of the standard ...
Jäggi, Adrian, Arnold, Daniel
core   +7 more sources

A review of real-time multi-GNSS precise orbit determination based on the filter method

open access: yesSatellite Navigation, 2022
Stable and reliable high-precision satellite orbit products are the prerequisites for the positioning services with high performance. In general, the positioning accuracy depends strongly on the quality of satellite orbit and clock products, especially ...
Yidong Lou   +7 more
doaj   +2 more sources

Precise Orbit Determination for BeiDou GEO/IGSO Satellites during Orbit Maneuvering with Pseudo-Stochastic Pulses [PDF]

open access: yesRemote Sensing, 2019
In order to provide better service for the Asia-Pacific region, the BeiDou navigation satellite system (BDS) is designed as a constellation containing medium earth orbit (MEO), geostationary earth orbit (GEO), and inclined geosynchronous orbit (IGSO ...
Zhiwei Qin   +7 more
doaj   +2 more sources

Precise Orbit Determination for ADEOS-II [PDF]

open access: yes, 2006
We performed the precise orbit determination of ADEOS-II using single frequency GPS data and reviewed the results. JAXA precise orbit determination system is called “GUTS (Global and high accUracy Trajectory determination system)”. In the 18th ISSFD, we reported that the accuracy of precise orbit determination achieved about 51cm.
Nakamura, S.   +3 more
openaire   +3 more sources

ACCURACY OF SATELLITE OPTICAL OBSERVATIONS AND PRECISE ORBIT DETERMINATION

open access: yesOdessa Astronomical Publications, 2017
The  monitoring  of  low-orbit  space  objects (LEO-objects) is performed in the Astronomical Observatory  of  Odessa  I.I. Mechnikov  National  University (Ukraine) for many years.
L. Shakun   +8 more
doaj   +4 more sources

Precise orbit and baseline determination for maneuvering low earth orbiters [PDF]

open access: yesGPS Solutions, 2015
Orbital maneuvers are usually performed as needed for low earth orbiters to maintain a predefined trajectory or formation-flying configuration. To avoid unexpected discontinuities and to connect pre- and post-maneuver arcs with a minimal set of parameters, a maneuver has to be considered in the routine GPS-based orbit determinations.
Bing Ju   +5 more
openaire   +7 more sources

Analysis on BDS-3 Autonomous Navigation Performance Based on the LEO Constellation and Regional Stations

open access: yesRemote Sensing, 2023
The global navigation satellite system (GNSS) is developing rapidly, and the related market applications and scientific research are increasing. Studies based on large low Earth orbit (LEO) satellite constellations have become research hotspots.
Baopeng Xu   +8 more
doaj   +1 more source

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