Results 41 to 50 of about 3,665,095 (200)

GOCE orbit predictions for SLR tracking [PDF]

GPS Solutions, 2010
After a descent phase of about half a year, the Gravity field and steady-state Ocean Circulation Explorer (GOCE) reached the final orbital altitude of the first measurement and operational phase (MOP-1) in September 2009. Due to this very low orbital altitude and the inactive drag compensation during descent, the generation of reliable predictions of ...
Jäggi, A., Bock, H., Floberghagen, R.
openaire   +3 more sources

An effective automatic processing engine for improving the multi-GNSS constellation precise orbit prediction

GPS Solutions
Orbit prediction (OP) recently tends to be a very crucial step for supporting real-time GNSS orbit services due to the dynamic stability of navigation satellite orbits.
Xinghan Chen, M. Ge, Xiang Zuo, Harald Schuh   +3 more
semanticscholar   +1 more source

An improved method for LEO orbit prediction using predicted accelerometer data

GPS Solutions
The Low Earth Orbit (LEO) enhanced Global Navigation Satellite System (LeGNSS) relies on LEO satellites to broadcast GNSS-like navigation signals, providing real-time satellite orbit and clock information to enhance GNSS service performance.
Junfeng Du, Xiaolei Dai, Yidong Lou, Yun Qing, Yaquan Peng, Xing Li   +5 more
semanticscholar   +1 more source

LTE: Lightweight Transformer Encoder for Orbit Prediction

Electronics
As the focus of space exploration has recently shifted from national efforts to private enterprises, interest in the space industry has increased.
Seungwon Jeong, Youjin Shin
semanticscholar   +1 more source

Prediction of IGS RTS Orbit Correction Using LSTM Network at the Time of IOD Change

Sensors, 2022
The international GNSS service (IGS) real-time service (RTS) provides orbit and clock corrections for the global navigation satellite system (GNSS) via the internet.
Beomsoo Kim, Jeongrae Kim
doaj   +1 more source

Orbit Determination Error Analysis for the KOMPSAT [PDF]

Journal of Astronomy and Space Sciences, 1998
Orbit error analysis was performed for the GPS navigation solutions and ground station tracking data of the KOMPSAT (Korea Multi-Purpose SATellite), which will be launched in 1999 for cartography of Korean peninsula as main mission. A least square method
Jeong-Sook Lee, Byoung-Sun Lee
doaj  

Analysis and Design of the Automatic Flight Dynamics Operations For Geostationary Satellite Mission [PDF]

Journal of Astronomy and Space Sciences, 2009
Automation of the key flight dynamics operations for the geostationary orbit satellite mission is analyzed and designed. The automation includes satellite orbit determination, orbit prediction, event prediction, and fuel accounting.
Byoung-Sun Lee, Yoola Hwang, Sangwook Park, Young-Ran Lee, Javier Santiago Noguero Galilea   +4 more
doaj   +1 more source

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

Satellite 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, Xiaolei Dai, Xiaopeng Gong, Chenglong Li, Yun Qing, Yang Liu, Yaquan Peng, Shengfeng Gu   +7 more
doaj   +1 more source

Initial Tracking, Fast Identification in a Swarm and Combined SLR and GNSS Orbit Determination of the TUBIN Small Satellite

Aerospace, 2022
Flight dynamics is a topic often overlooked by operators of small satellites without propulsion systems, as two-line elements (TLE) are easily accessible and accurate enough for most ground segment needs.
Clément Jonglez, Julian Bartholomäus, Philipp Werner, Enrico Stoll   +3 more
doaj   +1 more source

Improvement of Orbit Prediction Algorithm for Spacecraft Through Simplified Precession-Nutation Model Using Cubic Spline Interpolation Method

Computer Modeling in Engineering & Sciences, 2020
: For the on-orbit flight missions, the model of orbit prediction is critical for the tasks with high accuracy requirement and limited computing resources of spacecraft.
Gen Xu, Danhe Chen, Xiang Zhang, W. Liao
semanticscholar   +1 more source