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STAR-C: Towards a transportable Laser Ranging Station

Hasenohr, Thomas and Humbert, Leif and Hampf, Daniel and Riede, Wolfgang (2017) STAR-C: Towards a transportable Laser Ranging Station. In: Proceedings of the International Astronautical Congress, IAC. IAC 2017, 25.-29. Sep. 2017, Adelaide, Australien.

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Abstract

The increasing number of active satellites leads to an expected growth of the space debris population. Even today space debris is one of the major threats for active satellites and manned space missions. Therefore the low Earth orbit (LEO) population has to be monitored closely in order to avoid collisions. Precise measurements of the slant range, which can improve the orbit determination, can be performed by satellite- and space debris laser ranging. At the Institute of Technical Physics at the German Aerospace Center new technologies are developed and investigated for the detection, determination and ranging of space debris based on optical systems. At our fiber based laser ranging station Uhlandshöhe-Forschungsobservatorium (UFO) we successfully demonstrated time of flight measurements to cooperative objects in LEO with low pulse energies but high repetition rates. Based on these experiences we are setting up a transportable laser ranging station STAR-C (Surveillance, Tracking And Ranging - Container) for laser ranging of space debris in LEO. A standard 20ft ISO container, which can be operated autonomously with a 14kVA generator, contains all the scientific equipment and work places. The implemented laser ranging system raises above the roof of the container within less than 1min by a lifting platform. A transmitter- and a 17” receiver telescope are mounted on an agile alt-azimuth mount with an encoder resolution of 26-bit which gives an angular resolution of 1/50arcsec. In order to use the needed higher pulse energies for a ranging to space debris the STAR-C system guides laser pulses through a Coudé train from the space debris laser to the transmitter telescope. A Nd:YAG system at a wavelength of 1064nm will be used as a laser pulse source. At repetition rates of few 100Hz the pulse energy shall be higher than 100mJ for pulse durations (FWHM) smaller than 10ns. This work reports on the progress of the transportable laser ranging station STAR-C. In addition to the first passive optical tracking of an orbiting object in LEO, a comprehensive pointing model that compensates the deterministic tilt of the platform as well as the deployment at arbitrary sites will be discussed in this work.

Item URL in elib:https://elib.dlr.de/116523/
Document Type:Conference or Workshop Item (Poster)
Title:STAR-C: Towards a transportable Laser Ranging Station
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Hasenohr, Thomasthomas.hasenohr (at) dlr.deUNSPECIFIED
Humbert, Leifleif.humbert (at) dlr.deUNSPECIFIED
Hampf, Danieldaniel.hampf (at) dlr.deUNSPECIFIED
Riede, Wolfgangwolfgang.riede (at) dlr.deUNSPECIFIED
Date:25 September 2017
Journal or Publication Title:Proceedings of the International Astronautical Congress, IAC
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:No
Status:Published
Keywords:Space Debris, SSA, Laser Ranging, LEO
Event Title:IAC 2017
Event Location:Adelaide, Australien
Event Type:international Conference
Event Dates:25.-29. Sep. 2017
Organizer:IAF
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Technology
DLR - Research area:Raumfahrt
DLR - Program:R SY - Technik für Raumfahrtsysteme
DLR - Research theme (Project):Vorhaben Einsatz von Lasern zur Detektion von Weltraumschrott
Location: Stuttgart
Institutes and Institutions:Institute of Technical Physics > Active Optical Systems
Deposited By: Hasenohr, Thomas
Deposited On:06 Dec 2017 12:15
Last Modified:31 Jul 2019 20:14

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