Creation of the new industry-standard space test of laser retroreflectors for the GNSS and LAGEOS |
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| Authors: | S Dell’Agnello GO Delle Monache DG Currie R Vittori C Cantone M Garattini A Boni M Martini C Lops N Intaglietta R Tauraso DA Arnold MR Pearlman G Bianco S Zerbini M Maiello S Berardi L Porcelli CO Alley JF McGarry C Sciarretta V Luceri TW Zagwodzki |
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| Institution: | 1. Laboratori Nazionali di Frascati (LNF) dell’INFN via E. Fermi 40, 00044 Frascati, Rome, Italy;2. University of Maryland (UMD), Department of Physics, John S. Toll Building, Regents Drive, College Park, MD 20742-4111, USA;3. Aeronautica Militare Italiana, Viale dell’ Università 4, 00185 Rome, Italy;4. Agenzia Spaziale Italiana (ASI), Viale Liegi 26, 00198 Rome, Italy;5. University of Rome “Tor Vergata”, Dipartimento di Matematica, Via della Ricerca Scientifica, 00133 Rome, Italy;6. Harvard-Smithsonian Center for Astrophysics (CfA), 60 Garden Street, Cambridge, MA 02138, USA;g ASI, Centro di Geodesia Spaziale “G. Colombo” (ASI-CGS), Località Terlecchia, P.O. Box ADP, 75100 Matera, Italy;h University of Bologna, Department of Physics Sector of Geophysics, Viale Berti Pichat 8, 40127 Bologna, Italy;i NASA, Goddard Space Flight Center (GSCF), code 694, Greenbelt, MD 20771, USA |
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| Abstract: | We built a new experimental apparatus (the “Satellite/lunar laser ranging Characterization Facility”, SCF) and created a new test procedure (the SCF-Test) to characterize and model the detailed thermal behavior and the optical performance of cube corner laser retroreflectors in space for industrial and scientific applications. The primary goal of these innovative tools is to provide critical design and diagnostic capabilities for Satellites Laser Ranging (SLR) to Galileo and other GNSS (Global Navigation Satellite System) constellations. The capability will allow us to optimize the design of GNSS laser retroreflector payloads to maximize ranging efficiency, to improve signal-to-noise conditions in daylight and to provide pre-launch validation of retroreflector performance under laboratory-simulated space conditions. Implementation of new retroreflector designs being studied will help to improve GNSS orbits, which will then increase the accuracy, stability, and distribution of the International Terrestrial Reference Frame (ITRF), to provide better definition of the geocenter (origin) and the scale (length unit). |
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| Keywords: | Galileo GPS SLR New space test Laser retroreflectors Industry-standard LAGEOS |
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