Authors: Arlot J.-E., Emelyanov N. V., Lainey V., Andreev M., Assafin M., Braga-Ribas F., Camargo J. I. B., Casas R., Christou A., Colas F., Da Silva Neto D. N., Dechambre O., Dias-Oliveira A., Dourneau G., Farmakopoulos A., Gault D., George T., Gorshanov D. L., Herald D., Kozlov V., Kurenya A., Le Campion J. F., Lecacheux J., Loader B., MassallçŸ., Mc Brien M., Murphy A., Parakhin N., Roman-Lopes A., Schnabel C., Sergeev A., Tsamis V., Valdè± Sada P., Vieira-Martins R., and Zhang X.
%F: AA(Institut de m袡nique cè«¥ste et de calcul des 诨让rides - Observatoire de Paris, UMR 8028 du CNRS, 77 Av. Denfert-Rochereau, 75014, Paris, France arlot@imcce.fr), AB(Sternberg astronomical institute, 13 Universitetskij prospect, 119992, Moscow, Russia emelia@sai.msu.ru; Institut de m袡nique cè«¥ste et de calcul des 诨让rides - Observatoire de Paris, UMR 8028 du CNRS, 77 Av. Denfert-Rochereau, 75014, Paris, France), AC(Institut de m袡nique cè«¥ste et de calcul des 诨让rides - Observatoire de Paris, UMR 8028 du CNRS, 77 Av. Denfert-Rochereau, 75014, Paris, France), AD(Terskol Observatory, Kabardino-Balkaria Republic, 361605, Russian Federation), AE(Observatorio do Valongo/UFRJ, Ladeira Pedro Antonio 43, Rio de Janeiro, Brazil), AF(Observatò±¨¯ Nacional/MCTI, rua Gal. J. Cristino 77, Rio de Janeiro, Brazil; Paris Observatory, place J. Janssen, 92190, Meudon, France), AG(Observatò±¨¯ Nacional/MCTI, rua Gal. J. Cristino 77, Rio de Janeiro, Brazil), AH(Institut de Ciè£ies de l'Espai (IEEC-CSIC), Campus UAB, Facultat de Ciè£ies, Torre C5 parell, 08193, Bellaterra, Spain), AI(Armagh Observatory, College Hill, Armagh, BT61 9DG, UK), AJ(Institut de m袡nique cè«¥ste et de calcul des 诨让rides - Observatoire de Paris, UMR 8028 du CNRS, 77 Av. Denfert-Rochereau, 75014, Paris, France), AK(Observatorio do Valongo/UFRJ, Ladeira Pedro Antonio 43, Rio de Janeiro, Brazil), AL(20 rue Jean Monnet, 78180, Montigny-le-Bretonneux, France), AM(Observatò±¨¯ Nacional/MCTI, rua Gal. J. Cristino 77, Rio de Janeiro, Brazil; Observatorio do Valongo/UFRJ, Ladeira Pedro Antonio 43, Rio de Janeiro, Brazil), AN(Universit矤e Bordeaux, Observatoire Aquitain des Sciences de l'Univers, CNRS, UMR 5804, Laboratoire d'Astrophysique de Bordeaux, 2 rue de l'observatoire, BP 89, 33271, Floirac Cedex, France), AO(Sparta Astronomical Society, Sparta, Greece), AP(22 Booker Road, 2777, Hawkesbury Heights, Australia), AQ(136 Rio Senda, Umatilla, Oregon, 97882, USA), AR(Pulkovo Observatory, Saint Petersburg, Russia), AS(3 Lupin Pl, Murrumbateman, NSW, 2582, Australia), AT(Terskol Observatory, Kabardino-Balkaria Republic, 361605, Russian Federation), AU(Terskol Observatory, Kabardino-Balkaria Republic, 361605, Russian Federation), AV(Universit矤e Bordeaux, Observatoire Aquitain des Sciences de l'Univers, CNRS, UMR 5804, Laboratoire d'Astrophysique de Bordeaux, 2 rue de l'observatoire, BP 89, 33271, Floirac Cedex, France), AW(Paris Observatory, place J. Janssen, 92190, Meudon, France), AX(14 Craigieburn Street, 7510, Darfield, New Zealand), AY(AgrupaciñŸ€³tronò¬¨£a de Sabadell, PO Box 50, 08200, Sabadell, Spain), AZ(St. Patrick's Grammar School, Cathedral Road, Armagh, BT61 7QZ, UK), BA(St. Louis Grammar School, 151 Newry Road, Kilkeel, BT34 4EU, UK), BB(Terskol Observatory, Kabardino-Balkaria Republic, 361605, Russian Federation), BC(Department of Physics, Universidad de La Serena, Cisternas 1200, La Serena, Chile), BD(c/ Anselm Clav, 14, 08635 Sant Esteve Sesrovires, Catalonia, Spain), BE(Terskol Observatory, Kabardino-Balkaria Republic, 361605, Russian Federation), BF(Sparta Astronomical Society, Sparta, Greece; Ellinogermaniki Agogi School Observatory, Pallini Attikis, Athens, Greece), BG(Universidad de Monterrey, Departamento de F첩ca y Matem೩cas, Av. I. Morones Prieto 4500 Pte, San Pedro Garza Garc쟬 N.L., CP 66238, Mè·©co), BH(Observatò±¨¯ Nacional/MCTI, rua Gal. J. Cristino 77, Rio de Janeiro, Brazil; Institut de m袡nique cè«¥ste et de calcul des 诨让rides - Observatoire de Paris, UMR 8028 du CNRS, 77 Av. Denfert-Rochereau, 75014, Paris, France), BI(Yunnan Observatory, PR China)
Title: Astrometric results of observations of mutual occultations and eclipses of the Saturnian satellites in 2009
Abstract: Context. The photometry of mutual occultations and eclipses of natural planetary satellites can be used to infer very accurate astrometric data. This can be achieved by processing the light curves of the satellites observed during international campaigns of photometric observations of these mutual events.
Aims: This work focuses on processing the complete database of photometric observations of the mutual occultations and eclipses of the Saturnian satellites made during the international campaign in 2009. The final goal is to derive new accurate astrometric data.
Methods: We develop an accurate photometric model of mutual event observations of sufficiently high accuracy. Our original method is applied to derive astrometric data from photometric observations of the mutual occultations and eclipses of the Saturnian satellites.
Results: We process the 26 light curves obtained during the international campaign of photometric observations of the Saturnian satellites in 2009. Compared with the theory TASS 1.7 by Vienne and Duriez, we find that the root mean square of the "O-C" residuals for the 23 highest quality observations are equal to 48.5 and 21.7 mas in right ascension and declination, respectively, we obtain 16.4 and 20.7 mas with the new theory by Lainey and collaborators and 17.3 and 21.6 mas with JPL SAT351 ephemerides. Topocentric or heliocentric angular differences for satellites pairs are obtained for 16 time instants during the time period from December 19, 2008 to July 16, 2009. Light curves are available at the CDS via anonymous ftp to cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsarc.u-strasbg.fr/viz-bin/qcat?J/A+A/544/A29
Keywords: data, eclipse, major, mutual, observation, occultation, phenomena, photometric, position, Saturn
Journal: Astronomy & Astrophysics
Volume: 544
Number: 1
Pages: 29
Year: 2012
Bibliogaphic Code: 2012A%26A...544A..29A
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