Results 1 to 10 of about 125,840 (89)

Satellite orbit determination using satellite gravity gradiometry observations in GOCE mission perspective [PDF]

open access: yesAdvances in Geosciences, 2003
Between the years 2004 and 2005 the launch of the first gradiometric satellite is planned. This satellite will be an important element of the Gravity Field and Steady – State Ocean Circulation Explorer Mission (GOCE).
A. Bobojć, A. Drożyner
doaj   +4 more sources

Improved Initial Orbit Determination Based on the Gooding Method of Low Earth Orbit Space Debris Using Space-Based Observations

open access: yesRemote Sensing, 2023
Initial orbit determination (IOD), as a basis for initial orbit association and accurate orbit determination (OD), has a crucial role in the process of obtaining space debris orbit information. Among the traditional methods, the Gooding method has better
Yewen Yin   +5 more
doaj   +1 more source

An Improved Range-Searching Initial Orbit-Determination Method and Correlation of Optical Observations for Space Debris

open access: yesApplied Sciences, 2023
The Changchun Observatory of the National Astronomical Observatories, Chinese Academy of Sciences, and the Shanghai Astronomical Observatory are used to generate very short arc (VSA) angle observations of objects in low Earth orbit (LEO) and ...
Xiangxu Lei   +8 more
doaj   +1 more source

Orbit Determination of GPS and Koreasat 2 Satellite Using Angle-Only Data and Requirements for Optical Tracking System [PDF]

open access: yesJournal of Astronomy and Space Sciences, 2004
Gauss method for the initial orbit determination was tested using angle-only data obtained by orbit propagation using TLE and SGP4/SDP4 orbit propagation model.
Woo-Kyoung Lee   +5 more
doaj   +1 more source

Two-Site Optical Observation and Initial Orbit Determination for Geostationary Earth Orbit Satellites [PDF]

open access: yesJournal of Astronomy and Space Sciences, 2010
Optical observation system provides angle-only measurement for orbit determination of space object. Range measurement can be directly acquired using laser ranging or tone ranging system.
Jin Choi   +4 more
doaj   +1 more source

Orbit Determination Using Angle-Only Data for MEO & GEO Satellite and Obsolete [PDF]

open access: yesJournal of Astronomy and Space Sciences, 2009
We used an optical observation system with a 0.6m wide-field telescope and 5 computers system in KASI (Korean Astronomy and Space Science Institute) for satellite optical observation.
Jin Choi   +6 more
doaj   +1 more source

Initial orbit determination methods for track-to-track association [PDF]

open access: yes, 2021
The detection and identification of Resident Space Objects (RSOs) from survey tracks requires robust and efficient orbit determination methods for the association of observations of the same RSO.
Escobar, Diego   +2 more
core   +1 more source

Trends of Initial Orbit Determination Accuracy for Time Interval Change Between Three Pairs of Measurement Datas [PDF]

open access: yesJournal of Astronomy and Space Sciences, 2009
Gauss and Laplace methods for initial orbit determination (IOD) are classical orbit determination tools and have been used very efficiently in optical satellite surveillance system.
Okjun Hwang, Jung Hyun Jo
doaj   +1 more source

Applicable Tracking Data Arcs for NORAD TLE Orbit Determination of the KOMPSAT-1 Satellite Using GPS Navigation Solutions [PDF]

open access: yesJournal of Astronomy and Space Sciences, 2005
NORAD Two Line Element (TLE) is very useful to simplify the ground station antenna pointing and mission operations. When a satellite operations facility has the capability to determine NORAD type TLE which is independent of NORAD, it is important to ...
Byoung-Sun Lee
doaj   +1 more source

Effect of Observation Geometry on Short-Arc Angles-Only Initial Orbit Determination

open access: yesApplied Sciences, 2022
Space-based optical sensors are attracting increasing research attention as they can measure the angle of space targets over large areas, facilitating low-cost, wide-area space target surveillance. Studying the effect of observation geometry on short-arc
Zhao Feng   +4 more
doaj   +1 more source

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