Real-time orbit prediction in a large telescope system

Song-hua Yang; Yao Mao; Jia-guang Ma

doi:10.1117/12.831455

5 May 2009 Real-time orbit prediction in a large telescope system

Song-hua Yang, Yao Mao, Jia-guang Ma

Proceedings Volume 7281, 4th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes; 72810U (2009) https://doi.org/10.1117/12.831455
Event: AOMATT 2008 - 4th International Symposium on Advanced Optical Manufacturing, 2008, Chengdu, Chengdu, China

Abstract

High precision orbit predict data is not always available for large telescope system, which is designed for tracking space targets. The data from image procession is the only implementation to closed loop control. However, when target is going through thick cloud or low-contrast area, image procession might fail to offer reliable data to closed loop control. Large telescope system usually is built with high precision (arc seconds or several ten arc seconds) while with small field of view. A little time of failure from image procession will lead to escape of target. In this paper, a new way of real-time orbit prediction is presented to substitute traditional way. Real-time orbit prediction produces real-time prediction of high precision from real-time observation data which guides the driver module of large telescope system so that it will keep tracking even if temporary failure of image precession occurred and then high precision observation data is absent after acquisition. This theory has been validated by experiments in a large telescope system. The prediction keeps same order of observational data when failure of image precession occurred and then high precision observation data is absent for targets with orbit altitude 500km and 1000km, so that the system keepst tracking successfully. In this paper, the results of the experiments are analyzed, and the conclusion is that real-time orbit prediction is highly useful for large high precision telescope systems when tracking space target whose high precision orbit prediction is absent.

Citation Download Citation

Song-hua Yang, Yao Mao, and Jia-guang Ma "Real-time orbit prediction in a large telescope system", Proc. SPIE 7281, 4th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes, 72810U (5 May 2009); https://doi.org/10.1117/12.831455

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
4 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Space telescopes

Large telescopes

Image processing

Telescopes

Data acquisition

Computing systems

Control systems

Show All Keywords

Keywords/Phrases

Search In:

Publication Years