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Optical technologies for observation of low Earth orbit objects

Hampf, Daniel und Wagner, Paul und Riede, Wolfgang (2014) Optical technologies for observation of low Earth orbit objects. In: Proceedings of the International Astronautical Congress, IAC. 65th International Astronautical Congress 2014, 2014-09-29 - 2014-10-03, Toronto, Canada.

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Kurzfassung

In order to avoid collisions with space debris, the near Earth orbit must be continuously scanned by either ground- or spaced-based facilities. For the low Earth orbit, radar telescopes are the workhorse for this task, especially due to their continuous availability. However, optical observation methods can deliver complementary information, especially towards high accuracy measurements. Passive-optical observations are inexpensive and can yield very precise information about the apparent position of the object in the sky via comparison with background stars. However, the object's distance from the observer is not readily accessible, which constitutes a major drawback of this approach for the precise calculation of the orbital elements. Two experimental methods have been devised to overcome this problem: Using two observatories a few kilometres apart, strictly simultaneous observations of the same object yield an accurate, instantaneous 3D position determination through measurement of the parallax. If only one observatory is available, a pulsed laser can be used in addition to the passive-optical channel to measure the distance to the object, in a similar fashion as used by the satellite laser ranging community. However, compared to conventional laser ranging, a stronger laser and more elaborate tracking algorithms are necessary. The two approaches can also be combined by illuminating the object with a pulsed laser from one observatory and measuring the return times at both observatories. These techniques are explored by German Aerospace Center in Stuttgart using its orbital debris research observatory, in cooperation with the Satellite Laser Ranging station in Graz and the Geode- tic Observatory in Wettzell. This contribution will present some of the results and plans for further measurement campaigns.

elib-URL des Eintrags:https://elib.dlr.de/91072/
Dokumentart:Konferenzbeitrag (Poster)
Titel:Optical technologies for observation of low Earth orbit objects
Autoren:
AutorenInstitution oder E-Mail-AdresseAutoren-ORCID-iDORCID Put Code
Hampf, Danieldaniel.hampf (at) dlr.deNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Wagner, Paulpaul.wagner (at) dlr.dehttps://orcid.org/0000-0002-8882-8202NICHT SPEZIFIZIERT
Riede, Wolfgangwolfgang.riede (at) dlr.deNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Datum:September 2014
Erschienen in:Proceedings of the International Astronautical Congress, IAC
Referierte Publikation:Ja
Open Access:Ja
Gold Open Access:Nein
In SCOPUS:Ja
In ISI Web of Science:Nein
Status:veröffentlicht
Stichwörter:Weltraumschrott, space debris, optische Beobachtung
Veranstaltungstitel:65th International Astronautical Congress 2014
Veranstaltungsort:Toronto, Canada
Veranstaltungsart:internationale Konferenz
Veranstaltungsbeginn:29 September 2014
Veranstaltungsende:3 Oktober 2014
Veranstalter :International Astronautical Federation
HGF - Forschungsbereich:Luftfahrt, Raumfahrt und Verkehr
HGF - Programm:Raumfahrt
HGF - Programmthema:Technik für Raumfahrtsysteme
DLR - Schwerpunkt:Raumfahrt
DLR - Forschungsgebiet:R SY - Technik für Raumfahrtsysteme
DLR - Teilgebiet (Projekt, Vorhaben):R - Vorhaben Laserbasiertes SSA (alt)
Standort: Stuttgart
Institute & Einrichtungen:Institut für Technische Physik > Aktive optische Systeme
Hinterlegt von: Hampf, Daniel
Hinterlegt am:13 Nov 2014 10:37
Letzte Änderung:24 Apr 2024 19:56

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