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Detection and laser ranging of orbital objects using optical methods

Wagner, Paul and Hampf, Daniel and Sproll, Fabian and Hasenohr, Thomas and Humbert, Leif and Rodmann, Jens and Riede, Wolfgang (2016) Detection and laser ranging of orbital objects using optical methods. In: Proceedings of SPIE - The International Society for Optical Engineering. SPIE Optical Engineering and Applications, 28. Aug.-01. Sep. 2016, San Diego, CA, USA. doi: 10.1117/12.2236919.

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Official URL: http://proceedings.spiedigitallibrary.org/proceeding.aspx?articleid=2554542


Laser ranging to satellites (SLR) in earth orbit is an established technology used for geodesy, fundamental science and precise orbit determination. A combined active and passive optical measurement system using a single telescope mount is presented which performs precise ranging measurements of retro reflector equipped objects in low earth orbit (LEO). The German Aerospace Center (DLR) runs an observatory in Stuttgart where a system has been assembled completely from commercial off-the-shelf (COTS) components. The visible light directed to the tracking camera is used to perform angular measurements of objects under investigation. This is done astrometrically by comparing the apparent target position with cataloged star positions. First successful satellite laser ranging was demonstrated recently using an optical fiber directing laser pulses onto the astronomical mount. The transmitter operates at a wavelength of 1064 nm with a repetition rate of 3 kHz and pulse energy of 25 μJ. A motorized tip/tilt mount allows beam steering of the collimated beam with μrad accuracy. The returning photons reflected from the object in space are captured with the tracking telescope. A special low aberration beam splitter unit was designed to separate the infrared from visible light. This allows passive optical closed loop tracking and operation of a single photon detector for time of flight measurements at a single telescope simultaneously. The presented innovative design yields to a compact and cost effective but very precise ranging system which allows orbit determination. © (2016) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.

Item URL in elib:https://elib.dlr.de/107404/
Document Type:Conference or Workshop Item (Speech)
Title:Detection and laser ranging of orbital objects using optical methods
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Wagner, PaulPaul.Wagner (at) dlr.dehttps://orcid.org/0000-0002-8882-8202
Hampf, DanielDaniel.Hampf (at) dlr.deUNSPECIFIED
Sproll, FabianFabian.Sproll (at) dlr.deUNSPECIFIED
Hasenohr, Thomasthomas.hasenohr (at) dlr.deUNSPECIFIED
Humbert, Leifleif.humbert (at) dlr.deUNSPECIFIED
Rodmann, JensJens.Rodmann (at) dlr.deUNSPECIFIED
Riede, WolfgangWolfgang.Riede (at) dlr.deUNSPECIFIED
Date:19 September 2016
Journal or Publication Title:Proceedings of SPIE - The International Society for Optical Engineering
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
DOI :10.1117/12.2236919
Keywords:satellite laser ranging, optical telescope, low earth orbit, laser transmitter, fiber, single photon detector, space situational awareness, space debris
Event Title:SPIE Optical Engineering and Applications
Event Location:San Diego, CA, USA
Event Type:international Conference
Event Dates:28. Aug.-01. Sep. 2016
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space System Technology
DLR - Research area:Raumfahrt
DLR - Program:R SY - Space System Technology
DLR - Research theme (Project):R - Space Debris / Laser based SSA (old)
Location: Stuttgart
Institutes and Institutions:Institute of Technical Physics
Deposited By: Wagner, Paul
Deposited On:10 Nov 2016 11:53
Last Modified:30 Mar 2021 09:34

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