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LASER RANGING INTERFEROMETER ON GRACE FOLLOW-ON

Dahl, Christian and Braatzsch, A. and Dehne, Marina and Gilles, F. and Hager, P. and Herding, Mark and Nicklaus, Kolja and Voss, K. and Abich, Klaus and Braxmaier, Claus and Gohlke, Martin and Günther, Burghardt and Sanjuan, Jose and zender, bernd and BARRANCO, German and Görth, Alexander and Mahrdt, Christoph and Müller, Vitali and Schütze, Daniel and Stede, Gunnar and Heinzel, Gerhard (2017) LASER RANGING INTERFEROMETER ON GRACE FOLLOW-ON. In: PROCEEDINGS OF THE 5TH INTERNATIONAL CONFERENCE ON SPACE OPTICS (ICSO 2004). ICSO 2016, 18.-21.10.2016, Biarritz, France.

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Abstract

The Gravity Recovery and Climate Experiment (GRACE) is a successful Earth observation mission launched in 2002 consisting of two identical satellites in a polar low-Earth orbit [1]. The distance variations between these two satellites are measured with a Micro Wave Instrument (MWI) located in the central axis. In data postprocessing the spatial and temporal variations of the Earth’s gravitational field are recovered, which are among other things introduced by changing groundwater levels or ice-masses [2, 3, 4, 5]. The Laser Ranging Interferometer (LRI) on-board the GRACE Follow-On (GFO) mission, which will be launched in 2017 by the joint collaboration between USA (NASA) and Germany (GFZ), is a technology demonstrator to provide about two orders of magnitude higher measurement accuracy than the initial GRACE MWI, about 80 nm/√Hz in the measurement band between 2 mHz and 0.1 Hz. The integration of the LRI units on both GFO S/C has been finished in summer 2016. The design as well as the functional, performance, and thermal-vacuum tests results of the German LRI flight units will be presented.

Item URL in elib:https://elib.dlr.de/118466/
Document Type:Conference or Workshop Item (Speech)
Title:LASER RANGING INTERFEROMETER ON GRACE FOLLOW-ON
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Dahl, ChristianSpace tech GmbHUNSPECIFIED
Braatzsch, A.Space tech GmbHUNSPECIFIED
Dehne, MarinaSpaceTech GmbH, ImmenstaadUNSPECIFIED
Gilles, F.SpaceTech GmbHUNSPECIFIED
Hager, P.SpaceTech GmbHUNSPECIFIED
Herding, MarkSpaceTech GmbH, ImmenstaadUNSPECIFIED
Nicklaus, KoljaSpaceTech GmbH, ImmenstaadUNSPECIFIED
Voss, K.SpaceTech GmbHUNSPECIFIED
Abich, KlausRY-DLR, BremenUNSPECIFIED
Braxmaier, Clausclaus.braxmaier (at) dlr.deUNSPECIFIED
Gohlke, MartinMartin.Gohlke (at) dlr.deUNSPECIFIED
Günther, Burghardtburghardt.guenther (at) dlr.deUNSPECIFIED
Sanjuan, JoseDLR-RYUNSPECIFIED
zender, berndbernd.zender (at) dlr.deUNSPECIFIED
BARRANCO, Germanmax-planck-institut, hannoverUNSPECIFIED
Görth, AlexanderMax-Planck-Institut, HannoverUNSPECIFIED
Mahrdt, ChristophMax-Planck-Institut, HannoverUNSPECIFIED
Müller, VitaliMax-Planck-Institut, HannoverUNSPECIFIED
Schütze, DanielMax-Planck-Institut, HannoverUNSPECIFIED
Stede, GunnarMax-Planck-Institut, HannoverUNSPECIFIED
Heinzel, GerhardMax-Planck-Institut, HannoverUNSPECIFIED
Date:25 September 2017
Journal or Publication Title:PROCEEDINGS OF THE 5TH INTERNATIONAL CONFERENCE ON SPACE OPTICS (ICSO 2004)
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:Yes
Status:Published
Keywords:GRACE, LRI, Laser ranging, Interferometer
Event Title:ICSO 2016
Event Location:Biarritz, France
Event Type:international Conference
Event Dates:18.-21.10.2016
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Erdbeobachtung
DLR - Research theme (Project):R - Vorhaben GRACE Follow-On
Location: Bremen
Institutes and Institutions:Institute of Space Systems > Systems Enabling Technologies
Deposited By: Hüls, Simone
Deposited On:30 Jan 2018 11:19
Last Modified:30 Jan 2018 11:19

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