MPEC 2018-C51 : 2018 CR1
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M.P.E.C. 2018-C51 Issued 2018 Feb. 10, 18:27 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 2018 CR1 Observations: K18C01R C2018 01 29.65387 11 02 55.118+71 52 38.71 20.5 zUEC051F51 K18C01R C2018 01 29.67367 11 02 31.753+71 51 19.60 19.8 zUEC051F51 K18C01R C2018 01 30.47586 10 47 44.577+70 56 30.51 20.2 iUEC051F51 K18C01R C2018 01 30.48935 10 47 29.723+70 55 32.82 20.0 iUEC051F51 K18C01R C2018 01 30.50286 10 47 14.806+70 54 34.54 20.1 iUEC051F51 K18C01R* C2018 02 07.23007 09 13 49.17 +58 21 15.3 19.6 GUEC051703 K18C01R C2018 02 07.23544 09 13 46.71 +58 20 38.4 20.1 GUEC051703 K18C01R C2018 02 07.24081 09 13 44.10 +58 20 01.8 19.4 GUEC051703 K18C01R C2018 02 07.26455 09 13 32.92 +58 17 19.5 19.2 GUEC051I52 K18C01R C2018 02 07.26496 09 13 32.74 +58 17 16.8 19.0 GUEC051I52 K18C01R C2018 02 07.26538 09 13 32.53 +58 17 13.9 19.2 GUEC051I52 K18C01R C2018 02 07.26579 09 13 32.36 +58 17 11.1 19.1 GUEC051I52 K18C01R KC2018 02 07.30240 09 13 15.65 +58 12 57.3 19.0 RqEC051G58 K18C01R KC2018 02 07.30692 09 13 13.54 +58 12 26.4 19.5 RqEC051G58 K18C01R KC2018 02 07.31177 09 13 11.27 +58 11 52.9 19.3 RqEC051G58 K18C01R KC2018 02 07.31641 09 13 09.07 +58 11 21.3 19.3 RqEC051G58 K18C01R C2018 02 07.33363 09 13 00.54 +58 09 24.7 19.6 GUEC051I52 K18C01R C2018 02 07.33404 09 13 00.33 +58 09 21.6 19.9 GUEC051I52 K18C01R C2018 02 07.33446 09 13 00.19 +58 09 18.3 20.6 GUEC051I52 K18C01R C2018 02 07.33487 09 12 59.84 +58 09 14.1 UEC051I52 K18C01R C2018 02 07.34749 09 12 53.99 +58 07 49.2 19.4 GUEC051V06 K18C01R C2018 02 07.34800 09 12 53.75 +58 07 45.8 19.7 GUEC051V06 K18C01R C2018 02 07.34850 09 12 53.51 +58 07 42.3 19.2 GUEC051V06 K18C01R C2018 02 07.34901 09 12 53.28 +58 07 38.4 19.3 GUEC051V06 K18C01R C2018 02 07.42030 09 12 20.20 +57 59 23.0 19.5 GUEC051I52 K18C01R C2018 02 07.42072 09 12 19.97 +57 59 20.8 19.6 GUEC051I52 K18C01R C2018 02 07.42113 09 12 19.87 +57 59 17.6 19.6 GUEC051I52 K18C01R C2018 02 07.42231 09 12 19.30 +57 59 09.9 19.4 GUEC051I52 K18C01R C2018 02 07.48286 09 11 51.74 +57 52 06.0 19.4 GUEC051I52 K18C01R C2018 02 07.48327 09 11 51.53 +57 52 03.3 19.3 GUEC051I52 K18C01R C2018 02 07.48369 09 11 51.36 +57 52 00.5 19.2 GUEC051I52 K18C01R C2018 02 07.48486 09 11 50.82 +57 51 52.0 19.3 GUEC051I52 K18C01R KC2018 02 07.81182 09 09 33.38 +57 14 04.8 19.1 VqEC051C95 K18C01R KC2018 02 07.81679 09 09 31.22 +57 13 30.8 19.2 VqEC051C95 K18C01R KC2018 02 07.85775 09 09 10.23 +57 08 50.9 19.6 VqEC051C42 K18C01R KC2018 02 07.87710 09 09 01.78 +57 06 34.7 19.8 VqEC051C42 K18C01R KC2018 02 08.08477 09 07 38.84 +56 42 26.1 19.3 RqEC051H36 K18C01R KC2018 02 08.08556 09 07 38.50 +56 42 20.4 19.4 RqEC051H36 K18C01R KC2018 02 08.09113 09 07 36.18 +56 41 41.4 19.7 RqEC051H36 K18C01R C2018 02 08.15677 09 07 09.03 +56 34 07.9 19.1 GUEC051I52 K18C01R C2018 02 08.15701 09 07 08.91 +56 34 06.7 19.6 GUEC051I52 K18C01R C2018 02 08.15725 09 07 08.75 +56 34 04.7 19.3 GUEC051I52 K18C01R C2018 02 08.15751 09 07 08.66 +56 34 03.1 19.1 GUEC051I52 K18C01R KC2018 02 08.21579 09 06 43.90 +56 27 22.3 oEC051711 K18C01R KC2018 02 08.21849 09 06 42.73 +56 27 03.3 oEC051711 K18C01R KC2018 02 08.22118 09 06 41.61 +56 26 44.7 oEC051711 K18C01R C2018 02 09.14810809 00 43.00 +54 37 59.0 19.5 GUEC051H01 K18C01R C2018 02 09.15180 09 00 41.74 +54 37 33.0 19.5 GUEC051I52 K18C01R C2018 02 09.15400 09 00 40.85 +54 37 17.2 19.9 GUEC051I52 K18C01R C2018 02 09.15621 09 00 40.09 +54 37 01.8 19.3 GUEC051I52 K18C01R C2018 02 09.15645 09 00 39.93 +54 37 00.2 19.5 GUEC051I52 K18C01R C2018 02 09.15806709 00 39.22 +54 36 49.4 19.3 GUEC051H01 K18C01R C2018 02 09.16514409 00 36.54 +54 36 00.0 19.2 GUEC051H01 K18C01R C2018 02 09.16893109 00 35.10 +54 35 33.5 19.2 GUEC051H01 K18C01R KC2018 02 09.26118 08 59 59.94 +54 24 47.2 oEC051711 K18C01R KC2018 02 09.26416 08 59 58.79 +54 24 26.0 oEC051711 K18C01R KC2018 02 09.26725 08 59 57.64 +54 24 04.8 oEC051711 K18C01R KC2018 02 10.01802 08 55 35.05 +52 55 06.7 UEC051J95 K18C01R KC2018 02 10.02004 08 55 34.26 +52 54 52.7 UEC051J95 K18C01R KC2018 02 10.02239 08 55 33.48 +52 54 35.6 19.6 GUEC051J95 K18C01R C2018 02 10.14064 08 54 56.65 +52 40 36.2 18.8 GUEC051I52 K18C01R C2018 02 10.14145 08 54 56.28 +52 40 30.2 19.5 GUEC051I52 K18C01R C2018 02 10.14169 08 54 56.16 +52 40 28.1 19.2 GUEC051I52 K18C01R C2018 02 10.14292 08 54 55.78 +52 40 19.7 19.2 GUEC051I52 Observer details: 703 Catalina Sky Survey. Observer G. J. Leonard. Measurers E. J. Christensen, D. C. Fuls, A. R. Gibbs, A. D. Grauer, J. A. Johnson, R. A. Kowalski, S. M. Larson, G. J. Leonard, R. G. Matheny, R. L. Seaman, F. C. Shelly. 0.68-m Schmidt + 10K CCD. 711 McDonald Observatory. Observer J. G. Ries. 2.1-m reflector + CCD + focal reducer. C42 Xingming Observatory, Mt. Nanshan. Observers Z. Xu, X. Gao. Measurer Z. Xu. 0.6-m f/8 Ritchey-Chretien + CCD. C95 SATINO Remote Observatory, Haute Provence. Observer J. Jahn. 0.60-m f/3.2 Newtonian reflector + CCD. F51 Pan-STARRS 1, Haleakala. Observers J. Bulger, T. Lowe, A. Schultz, M. Willman. Measurers K. Chambers, S. Chastel, L. Denneau, H. Flewelling, M. Huber, E. Lilly, E. Magnier, R. Wainscoat, C. Waters, R. Weryk. 1.8-m Ritchey-Chretien + CCD. G58 Chabot Space and Science Center, Oakland. Observer G. McKeegan. 0.9-m f/4.5 Cassegrain + CCD. H01 Magdalena Ridge Observatory, Socorro. Observers W. H. Ryan, E. V. Ryan. Measurer W. H. Ryan. 2.4-m f/8.9 reflector + CCD. H36 Sandlot Observatory, Scranton. Observer G. Hug. 0.56-m reflector + CCD. I52 Steward Observatory, Mt. Lemmon Station. Observers G. J. Leonard, R. A. Kowalski, J. A. Johnson. Measurers E. J. Christensen, D. C. Fuls, A. R. Gibbs, A. D. Grauer, J. A. Johnson, R. A. Kowalski, S. M. Larson, G. J. Leonard, R. G. Matheny, R. L. Seaman, F. C. Shelly. 1.0-m reflector + CCD. J95 Great Shefford. Observer P. Birtwhistle. 0.40-m f/6.0 Schmidt-Cassegrain + CCD. V06 Catalina Sky Survey-Kuiper. Observer R. A. Kowalski. Measurers E. J. Christensen, D. C. Fuls, A. R. Gibbs, A. D. Grauer, J. A. Johnson, R. A. Kowalski, S. M. Larson, G. J. Leonard, R. G. Matheny, R. L. Seaman, F. C. Shelly. 1.55-m reflector + CCD. Orbital elements: 2018 CR1 Earth MOID = 0.3186 AU Epoch 2018 Mar. 23.0 TT = JDT 2458200.5 MPC M 30.33408 (2000.0) P Q n 0.31143448 Peri. 111.38344 +0.08608962 -0.94730854 a 2.1555507 Node 328.28876 +0.54682884 +0.30379904 e 0.4958882 Incl. 35.94269 +0.83280658 -0.10155137 P 3.16 H 20.4 G 0.15 U 7 Residuals in seconds of arc 180129 F51 0.1+ 0.0 180207 V06 0.1- 0.1+ 180208 711 0.5+ 0.0 180129 F51 0.1- 0.1- 180207 V06 0.0 0.3- 180208 711 0.7+ 0.1+ 180130 F51 0.1+ 0.0 180207 I52 0.3- 0.6- 180209 H01 0.0 0.0 180130 F51 0.1+ 0.2+ 180207 I52 0.6- 0.2+ 180209 I52 0.0 0.1+ 180130 F51 0.1- 0.1+ 180207 I52 0.2+ 0.2- 180209 I52 0.5- 0.3- 180207 703 0.3- 0.5+ 180207 I52 0.1- 0.4+ 180209 I52 0.2+ 0.3- 180207 703 0.3+ 0.2+ 180207 I52 0.0 0.0 180209 I52 0.4- 0.2- 180207 703 0.3- 0.2+ 180207 I52 0.2- 0.2+ 180209 H01 0.1- 0.0 180207 I52 0.2- 0.0 180207 I52 0.0 0.3+ 180209 H01 0.0 0.0 180207 I52 0.1- 0.1+ 180207 I52 0.1- 0.0 180209 H01 0.0 0.0 180207 I52 0.2- 0.1+ 180207 C95 0.2+ 0.2+ 180209 711 0.2+ 0.1+ 180207 I52 0.1- 0.1+ 180207 C95 0.2+ 0.3+ 180209 711 0.1+ 0.0 180207 G58 0.0 0.2+ 180207 C42 0.3- 0.1- 180209 711 0.3+ 0.6+ 180207 G58 0.0 0.2+ 180207 C42 0.5- 0.5- 180210 J95 0.3+ 0.1- 180207 G58 0.0 0.0 180208 H36 0.4+ 0.6+ 180210 J95 0.5- 0.3+ 180207 G58 0.2- 0.2+ 180208 H36 0.4+ 0.4+ 180210 J95 0.2- 0.0 180207 I52 0.5+ 0.2- 180208 H36 0.6+ 0.3- 180210 I52 0.9+ 0.2+ 180207 I52 0.3+ 0.5- 180208 I52 0.3+ 0.0 180210 I52 0.0 0.1- 180207 I52 0.8+ 0.9- 180208 I52 0.1+ 0.4+ 180210 I52 0.3- 0.5- 180207 I52 (0.5- 2.3-) 180208 I52 0.4- 0.1+ 180210 I52 0.0 0.3- 180207 V06 0.0 0.0 180208 I52 0.2- 0.3+ 180207 V06 0.1- 0.1+ 180208 711 0.7+ 0.2+ Ephemeris: 2018 CR1 a,e,i = 2.16, 0.50, 36 q = 1.0866 Date TT R. A. (2000) Decl. Delta r Elong. Phase V 2018 01 11 16 24 33.8 +69 47 46 0.4425 1.1285 97.3 59.8 21.0 ... 2018 01 26 12 22 53.1 +74 41 20 0.3540 1.1854 116.4 48.1 20.3 ... 2018 02 03 09 54 59.7 +65 54 22 0.3285 1.2232 130.1 38.1 19.9 ... 2018 02 09 09 01 36.3 +54 55 28 0.3280 1.2544 139.6 30.7 19.8 2018 02 10 08 55 41.7 +52 57 20 0.3297 1.2598 140.8 29.6 19.8 2018 02 11 08 50 23.4 +50 58 39 0.3320 1.2652 142.0 28.7 19.8 ... 2018 02 17 08 28 04.0 +39 24 48 0.3567 1.2990 145.9 25.2 19.9 ... 2018 02 25 08 13 45.6 +26 22 16 0.4161 1.3464 143.2 26.1 20.3 ... 2018 03 12 08 08 25.8 +10 39 05 0.5834 1.4408 130.2 31.8 21.4 A. U. Tomatic (C) Copyright 2018 MPC M.P.E.C. 2018-C51


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