MPEC 2017-B121: 2017 BH30
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M.P.E.C. 2017-B121 Issued 2017 Jan. 29, 19:21 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 2017 BH30 Revision to MPEC 2017-B120 Additional Observations: K17B30H KC2017 01 29.76755 07 31 21.45 +18 38 41.7 17.7 V EB121L04 K17B30H KC2017 01 29.77100 07 31 19.43 +18 41 15.2 17.8 V EB121L04 K17B30H KC2017 01 29.77231 07 31 22.28 +18 41 13.5 17.0 RoEB121K88 K17B30H KC2017 01 29.77319 07 31 21.78 +18 41 53.2 17.2 RoEB121K88 K17B30H KC2017 01 29.77408 07 31 21.29 +18 42 33.3 17.1 RoEB121K88 K17B30H KC2017 01 29.77496 07 31 20.78 +18 43 13.1 17.1 RoEB121K88 K17B30H KC2017 01 29.78258 07 31 35.40 +18 52 06.6 17.0 RqEB121470 K17B30H KC2017 01 29.78327 07 31 35.02 +18 52 40.1 16.7 RqEB121470 Observer details: 470 Ceccano. Observer G. Masi. Measurers G. Masi, U. Masi. 0.43-m f/6.8 reflector + CCD. K88 GINOP-KHK, Piszkesteto. Observer K. Sarneczky. 0.60-m Schmidt + CCD. L04 ROASTERR-1 Observatory, Cluj-Napoca. Observer L. Hudin. 0.3-m f/5.0 reflector + CCD. Orbital elements: 2017 BH30 Earth MOID = 0.0004 AU Epoch 2017 Feb. 16.0 TT = JDT 2457800.5 MPC M 354.34552 (2000.0) P Q n 0.27722199 Peri. 56.80571 -0.99327153 +0.11302413 a 2.3294368 Node 129.67090 -0.11414242 -0.91859616 e 0.6511777 Incl. 1.87936 -0.01957498 -0.37869069 P 3.56 H 28.9 G 0.15 U 4 Residuals in seconds of arc 170129 703 0.3+ 0.1+ 170129 703 0.6- 0.0 170129 Q62 0.4+ 0.4- 170129 703 0.4- 0.1- 170129 703 0.4- 0.1- 170129 Q62 0.8+ 0.5- 170129 703 0.1+ 0.4+ 170129 H01 0.3- 0.2+ 170129 Q62 1.3+ 0.0 170129 703 1.4+ 0.7- 170129 G96 0.3- 0.0 170129 K88 0.1+ 0.1+ 170129 H01 0.0 0.0 170129 G96 0.8- 0.6+ 170129 K88 0.1+ 0.2- 170129 H01 0.0 0.1+ 170129 G96 0.3- 0.4+ 170129 K88 0.2+ 0.2- 170129 H01 0.0 0.1+ 170129 H01 0.2- 0.1+ 170129 L04 0.5- 0.2+ 170129 H01 0.1- 0.0 170129 H01 0.3- 0.2+ 170129 L04 0.3- 0.2+ 170129 I52 0.2- 0.0 170129 H01 0.4- 0.2+ 170129 K88 0.1- 0.5- 170129 I52 0.1- 0.1+ 170129 G96 0.6- 0.2+ 170129 K88 0.3- 0.5- 170129 I52 0.0 0.3+ 170129 G96 0.5- 0.5+ 170129 K88 0.1- 0.7- 170129 I52 0.1+ 0.3+ 170129 G96 0.4- 0.6+ 170129 K88 0.2- 0.9- 170129 703 0.1- 0.3- 170129 G96 0.5- 0.2+ 170129 470 0.5- 1.7+ 170129 703 0.1- 0.2+ 170129 Q62 1.1+ 0.9+ 170129 470 0.4- 1.9+ Ephemeris: 2017 BH30 a,e,i = 2.33, 0.65, 2 q = 0.8126 Date TT R. A. (2000) Decl. Delta r Elong. Phase V 2016 12 30 07 33 19.3 +14 28 07 0.2919 1.2666 164.1 12.3 27.5 ... 2017 01 14 07 33 12.0 +13 56 34 0.1434 1.1259 172.3 6.8 25.4 ... 2017 01 22 07 32 18.7 +13 55 19 0.07141 1.0541 167.9 11.3 24.0 ... 2017 01 28 07 31 32.9 +14 39 29 0.01909 1.0031 162.8 16.9 21.2 2017 01 29 07 31 12.9 +15 32 43 0.01043 0.9949 162.0 17.8 19.9 2017 01 30 07 27 56.2 +25 01 10 0.0017950.9868 159.6 20.4 16.2 ... 2017 02 05 19 31 07.3 -16 58 38 0.05029 0.9405 24.8 154.0 31.5 ... 2017 02 13 19 33 31.7 -17 13 05 0.1211 0.8871 32.2 143.7 31.4 ... 2017 02 28 19 46 43.4 -17 07 20 0.2617 0.8228 44.0 123.2 30.7 A. U. Tomatic (C) Copyright 2017 MPC M.P.E.C. 2017-B121


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