Results 51 to 60 of about 6,687 (290)

COSMIC-2 Precise Orbit Determination [PDF]

open access: yes, 2019
We present initial results for post-processed GNSS orbit and clock estimation for the FORMOSAT-7/COSMIC-2 (Constellation Observing System for Meteorology, Ionosphere, and Climate) constellation.
Arnold, Daniel   +5 more
core  

The BeiDou Navigation Message [PDF]

open access: yes, 2013
The article provides an overview of the BeiDou navigation message contents and highlights its specific communalities and differences with respect to other GNSS constellations. Making use of data collected by multi-GNSS monitoring stations of the MGEX and
Steigenberger, Peter   +1 more
core   +1 more source

GEORB:Release for precise orbit determination of low Earth orbiters and satellite gravity missions [PDF]

open access: yes, 2023
Gravity and precisE ORBit determination system (GEORB) is a software for precise orbit determination of low Earth orbiters, gravity field recovery based on satellite gravity missions and orbit design of future space missions.
Papanikolaou, Thomas   +1 more
core   +1 more source

Results and Analyses of BDS Precise Orbit Determination with the Enhancement of Fengyun-3C [PDF]

open access: yesJournal of Geodesy and Geoinformation Science, 2019
Global navigation satellite system occultation sounder (GNOS) Fengyun-3C was launched successfully on September 23, 2013, which carried GPS/BDS receiver for the first time.
Tian ZENG,Lifen SUI,Xiaolin JIA,Guofeng JI,Qinghua ZHANG
doaj   +1 more source

Desaturation Maneuvers and Precise Orbit Determination for the BepiColombo Mission

open access: yes, 2011
The purpose of this work is the analysis of the consequences that desaturation maneuvers can have in the precise orbit determination corresponding to the Radio Science Experiment (MORE) of the BepiColombo mission to Mercury. This mission is an ESA/JAXA joint project with very challenging objectives regarding geodesy, geophysics and fundamental physics.
ALESSI E. M.   +3 more
openaire   +3 more sources

Reciprocal control of viral infection and phosphoinositide dynamics

open access: yesFEBS Letters, EarlyView.
Phosphoinositides, although scarce, regulate key cellular processes, including membrane dynamics and signaling. Viruses exploit these lipids to support their entry, replication, assembly, and egress. The central role of phosphoinositides in infection highlights phosphoinositide metabolism as a promising antiviral target.
Marie Déborah Bancilhon, Bruno Mesmin
wiley   +1 more source

First In-orbit Experience of TerraSAR-X Flight Dynamics Operations [PDF]

open access: yes, 2007
TerraSAR-X is an advanced synthetic aperture radar satellite system for scientific and commercial applications that is realized in a public-private partnership between the German Aerospace Center (DLR) and the Astrium GmbH.
Kiehling, Reinhard   +11 more
core   +1 more source

Flight Dynamics Operations of the TanDEM-X Formation [PDF]

open access: yes, 2012
Since end of 2010 the German TerraSAR-X and TanDEM-X satellites are routinely operated as the first configurable single-pass Synthetic Aperture Radar interferometer in space. The two 1340 kg satellites fly in a 514 km sun-synchronous orbit.
Aida, Saika   +4 more
core   +1 more source

Precise Orbit Determination of Mars-crossing Asteroids

open access: yesThe Astronomical Journal
This study investigates the orbit determination of the Mars-crossing asteroids (MCAs) with a focus on the possibility of detecting their Yarkovsky signals. We analyze the influences of force model uncertainties on MCA orbits, including the uncertainty of
Xin Liu   +6 more
doaj   +1 more source

Centimeter-Level Precise Orbit Determination for the Luojia-1A Satellite Using BeiDou Observations

open access: yesRemote Sensing, 2020
Luojia-1A is a scientific experimental satellite operated by Wuhan University, which is the first low earth orbiter (LEO) navigation signal augmentation experimental satellite.
Lei Wang   +6 more
doaj   +1 more source

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