Navy Prototype Optical Interferometer observations of geosynchronous satellites

被引：20

作者：

Hindsley, Robert B. ^{[1
]}

Armstrong, J. Thomas ^{[1
]}

Schmitt, Henrique R. ^{[1
,2
]}

Andrews, Jonathan R. ^{[3
]}

Restaino, Sergio R. ^{[3
]}

Wilcox, Christopher C. ^{[3
]}

Vrba, Frederick J. ^{[4
]}

Benson, James A. ^{[4
]}

DiVittorio, Michael E. ^{[4
]}

Hutter, Donald J. ^{[4
]}

Shankland, Paul D. ^{[4
]}

Gregory, Steven A. ^{[5
]}

机构：

[1] USN, Res Lab, Remote Sensing Div, Washington, DC 20375 USA

[2] Computat Phys Inc, Springfield, VA 22151 USA

[3] USN, Res Lab, Remote Sensing Div, Albuquerque, NM 87117 USA

[4] US Naval Observ, Flagstaff Stn, Flagstaff, AZ 86001 USA

[5] Boeing LTS, Albuquerque, NM 87117 USA

来源：

APPLIED OPTICS | 2011年 / 50卷 / 17期

关键词：

D O I：

10.1364/AO.50.002692

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Using a 15.9 m baseline at the Navy Prototype Optical Interferometer (NPOI), we have successfully detected interferometric fringes in observations of the geosynchronous satellite (geosat) DirecTV-9S while it glinted on two nights in March 2009. The fringe visibilities can be fitted by a model consisting of two components, one resolved (greater than or similar to 3.7 m) and one unresolved (similar to 1.1 m). Both the length of the glint and the specular albedos are consistent with the notion that the glinting surfaces are not completely flat and scatter reflected sunlight into an opening angle of roughly 15 degrees. Enhancements to the NPOI that would improve geosat observations include adding an infrared capability, which could extend the glint season, and adding larger, adaptive-optics equipped telescopes. Future work may test the feasibility of observing geosats with aperture-masked large telescopes and of developing an array of six to nine elements. (C) 2011 Optical Society of America

引用

页码：2692 / 2698

页数：7

共 12 条

[1]

[Anonymous], ALLENS ASTROPHYSICAL

[2]

Armstrong J.T., 2009, P SOC PHOTO-OPT INS, p74680K

[3]

Armstrong JT, 1998, ASTROPHYS J, V496, P550, DOI 10.1086/305365

[4] The VLTI -: A status report [J].

Glindemann, A ;

Algomedo, J ;

Amestica, R ;

Ballester, P ;

Bauvir, B ;

Bugueño, E ;

Correia, S ;

Delgado, F ;

Delplancke, F ;

Derie, F ;

Duhoux, P ;

di Folco, E ;

Gennai, A ;

Gilli, B ;

Giordano, P ;

Gitton, P ;

Guisard, S ;

Housen, N ;

Huxley, A ;

Kervella, P ;

Kiekebusch, M ;

Koehler, B ;

Lévêque, S ;

Longinotti, A ;

Ménardi, S ;

Morel, S ;

Paresce, F ;

Duc, TP ;

Richichi, A ;

Schöller, M ;

Tarenghi, M ;

Wallander, A ;

Wittkowski, M ;

Wilhelm, R .

ASTROPHYSICS AND SPACE SCIENCE, 2003, 286 (1-2) :35-44

[5] The colours of the Sun [J].

Holmberg, J ;

Flynn, C ;

Portinari, L .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2006, 367 (02) :449-453

[6]

KAPLAN GH, 1990, B AM ASTRON SOC, V22, P930

[7] Space-based visible space object photometry: Initial results [J].

Lambour, R ;

Bergemann, R ;

von Braun, C ;

Gaposchkin, EM .

JOURNAL OF GUIDANCE CONTROL AND DYNAMICS, 2000, 23 (01) :159-164

[8]

PERLEY R, 2001, EVLA PHAS 2 DEF M SO

[9] The Naval Research Laboratory MEM Adaptive Optics Program [J].

Restaino, Sergio R. ;

Martinez, Ty ;

Andrews, Jonathan R. ;

Wilcox, Christopher C. ;

Santiago, Freddie ;

Payne, Don M. .

MEMS ADAPTIVE OPTICS III, 2009, 7209

[10] THE PERSEUS FLASHER AND SATELLITE GLINTS [J].

SCHAEFER, BE ;

BARBER, M ;

BROOKS, JJ ;

DEFORREST, A ;

MALEY, PD ;

MCLEOD, NW ;

MCNIEL, R ;

NOYMER, AJ ;

PRESNELL, AK ;

SCHWARTZ, R ;

WHITNEY, S .

ASTROPHYSICAL JOURNAL, 1987, 320 (01) :398-404

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