| Literature DB >> 31386438 |
Klaus Abich1, Alexander Abramovici2, Bengie Amparan3, Andreas Baatzsch4, Brian Bachman Okihiro2, David C Barr2, Maxime P Bize2, Christina Bogan5, Claus Braxmaier1, Michael J Burke2, Ken C Clark2, Christian Dahl4, Katrin Dahl4, Karsten Danzmann5, Mike A Davis3, Glenn de Vine2, Jeffrey A Dickson2, Serge Dubovitsky2, Andreas Eckardt6, Thomas Ester7, Germán Fernández Barranco5, Reinhold Flatscher8, Frank Flechtner9,10, William M Folkner2, Samuel Francis2, Martin S Gilbert2, Frank Gilles4, Martin Gohlke1, Nicolas Grossard11, Burghardt Guenther6, Philipp Hager4, Jerome Hauden11, Frank Heine7, Gerhard Heinzel5, Mark Herding4, Martin Hinz12, James Howell3, Mark Katsumura2, Marina Kaufer4, William Klipstein2, Alexander Koch5, Micah Kruger3, Kameron Larsen2, Anton Lebeda13, Arnold Lebeda13, Thomas Leikert12, Carl Christian Liebe2, Jehhal Liu2, Lynette Lobmeyer3, Christoph Mahrdt5, Thomas Mangoldt6, Kirk McKenzie2, Malte Misfeldt5, Phillip R Morton2, Vitali Müller5, Alexander T Murray2, Don J Nguyen2, Kolja Nicklaus4, Robert Pierce3, Joshua A Ravich2, Gretchen Reavis3, Jens Reiche5, Josep Sanjuan1, Daniel Schütze5, Christoph Seiter7, Daniel Shaddock2, Benjamin Sheard5, Michael Sileo3, Robert Spero2, Gary Spiers2, Gunnar Stede5, Michelle Stephens3, Andrew Sutton2, Joseph Trinh2, Kai Voss4, Duo Wang2, Rabi T Wang2, Brent Ware2, Henry Wegener5, Steve Windisch7, Christopher Woodruff2, Bernd Zender6, Marcus Zimmermann12.
Abstract
The Laser Ranging Interferometer (LRI) instrument on the Gravity Recovery and Climate Experiment (GRACE) Follow-On mission has provided the first laser interferometric range measurements between remote spacecraft, separated by approximately 220 km. Autonomous controls that lock the laser frequency to a cavity reference and establish the 5 degrees of freedom two-way laser link between remote spacecraft succeeded on the first attempt. Active beam pointing based on differential wave front sensing compensates spacecraft attitude fluctuations. The LRI has operated continuously without breaks in phase tracking for more than 50 days, and has shown biased range measurements similar to the primary ranging instrument based on microwaves, but with much less noise at a level of 1 nm/sqrt[Hz] at Fourier frequencies above 100 mHz.Year: 2019 PMID： 31386438 DOI： 10.1103/PhysRevLett.123.031101
Source DB: PubMed Journal: Phys Rev Lett ISSN： 0031-9007 Impact factor: 9.161