Preparing MPCs (Info)

MPEC 2017-L47 : S/2017 J 1

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M.P.E.C. 2017-L47 Issued 2017 June 5, 15:17 UT The Minor Planet Electronic Circulars contain information on unusual minor planets and routine data on comets. They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A. Prepared using the Tamkin Foundation Computer Network MPC@CFA.HARVARD.EDU URL https://www.minorplanetcenter.net/ ISSN 1523-6714 S/2017 J 1 Additional Observations: SK17J010 C2016 02 05.64655 11 23 30.14 +04 02 03.2 23.7 rcEL047568 SK17J010 C2016 02 05.65734 11 23 29.95 +04 02 04.5 23.7 rcEL047568 SK17J010 C2016 04 10.25724 10 58 12.55 +07 04 03.1 23.8 rcEL047568 SK17J010 C2016 04 10.49682 10 58 08.58 +07 04 31.6 23.8 rcEL047568 SK17J010 C2017 02 24.56974 13 18 34.49 -06 53 43.2 23.8 rcEL047568 SK17J010 C2017 02 24.64168 13 18 33.24 -06 53 37.5 23.8 rcEL047568 SK17J010 C2017 03 23.24858 13 08 05.54 -06 00 40.0 24.0 rcEL047807 SK17J010 C2017 03 23.27130 13 08 04.87 -06 00 36.9 23.9 rcEL047807 SK17J010 C2017 03 26.28417 13 06 36.13 -05 52 56.5 23.9 rcEL047807 SK17J010 C2017 03 26.32711 13 06 34.81 -05 52 49.6 23.8 rcEL047807 SK17J010 C2017 04 22.11022 12 53 07.38 -04 43 04.4 23.8 rcEL047304 SK17J010 C2017 04 22.14163 12 53 06.48 -04 42 59.8 23.8 rcEL047304 SK17J010 C2017 04 23.15981 12 52 37.95 -04 40 34.5 23.8 rcEL047304 SK17J010 C2017 04 23.18409 12 52 37.27 -04 40 30.9 23.9 rcEL047304 Observer details: 304 Las Campanas Observatory. Observer S. S. Sheppard. 6.5-m Magellan-Baade telescope + CCD. 568 Mauna Kea. Observers S. S. Sheppard, D. J. Tholen, C. Trujillo. 8.2-m Subaru Telescope + CCD. 807 Cerro Tololo. Observers S. S. Sheppard, C. Trujillo. 4.0-m CTIO reflector + CCD. Orbital elements: S/2017 J 1 Epoch 2017 Sept. 4.0 TT = JDT 2458000.5 MPC M 161.32649 (2000.0) P Q n 0.48965383 Peri. 79.73238 -0.31399774 -0.90701199 a 0.1569807 Node 326.77425 -0.93870913 +0.34086171 e 0.3968680 Incl. 149.19651 +0.14223425 +0.24727019 P 2.01 H 16.5 P/d 735.21 From 14 observations 2016 Feb. 5-2017 Apr. 23, mean residual 0".28. Residuals in seconds of arc 160205 568 0.1+ 0.0 170224 568 0.1+ 0.5+ 170422 304 0.0 0.3- 160205 568 0.3+ 0.1- 170323 807 0.2+ 0.1+ 170422 304 0.1+ 0.2- 160410 568 0.1+ 0.2+ 170323 807 0.2+ 0.2- 170423 304 0.1- 0.4- 160410 568 0.4- 0.2+ 170326 807 0.4- 0.2+ 170423 304 0.1+ 0.2- 170224 568 0.3+ 0.5+ 170326 807 0.6- 0.4+ Gareth V. Williams (C) Copyright 2017 MPC M.P.E.C. 2017-L47

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Another satellite of Jupiter is announced, S/2017 J 1, just 3 days after the announcement of S/2016 J 1.