MPEC 2016-Y65 : 2016 YN4
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M.P.E.C. 2016-Y65 Issued 2016 Dec. 27, 22:24 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 2016 YN4 Observations: K16Y04N* C2016 12 24.57483 12 20 01.83 +52 17 17.1 18.8 wLEY065T05 K16Y04N C2016 12 24.58642 12 19 49.65 +52 17 36.5 19.0 wLEY065T05 K16Y04N C2016 12 24.59792 12 19 37.34 +52 17 56.0 18.9 wLEY065T05 K16Y04N C2016 12 24.60935 12 19 25.28 +52 18 12.9 19.0 wLEY065T05 K16Y04N KC2016 12 26.16114 11 53 05.60 +52 44 24.9 18.1 RrEY065106 K16Y04N KC2016 12 26.16435 11 53 02.15 +52 44 26.1 18.6 RrEY065106 K16Y04N KC2016 12 26.16757 11 52 58.98 +52 44 27.8 18.1 RrEY065106 K16Y04N C2016 12 26.46762211 48 02.67 +52 47 06.6 18.1 GUEY065H01 K16Y04N C2016 12 26.47437711 47 55.84 +52 47 09.8 18.1 GUEY065H01 K16Y04N C2016 12 26.48451211 47 45.57 +52 47 14.6 18.0 GUEY065H01 K16Y04N C2016 12 26.49006511 47 39.95 +52 47 17.2 18.1 GUEY065H01 K16Y04N KC2016 12 26.86974 11 41 29.60 +52 48 28.0 19.2 VqEY065Z99 K16Y04N KC2016 12 26.87354 11 41 26.28 +52 48 30.0 18.9 VqEY065Z99 K16Y04N KC2016 12 26.87731 11 41 22.58 +52 48 31.2 18.4 VqEY065Z99 K16Y04N KC2016 12 26.93939511 40 22.77 +52 48 50.4 19.0 VqEY065Z80 K16Y04N KC2016 12 26.94674211 40 15.43 +52 48 52.7 18.6 VqEY065Z80 K16Y04N KC2016 12 26.95409111 40 08.29 +52 48 54.7 18.4 VqEY065Z80 K16Y04N KC2016 12 26.98270 11 39 40.80 +52 49 07.9 17.8 RqEY065C23 K16Y04N KC2016 12 26.98495 11 39 38.60 +52 49 07.1 17.9 RqEY065C23 K16Y04N KC2016 12 26.98719 11 39 36.37 +52 49 08.0 17.9 RqEY065C23 K16Y04N KC2016 12 27.05195 11 38 33.42 +52 49 24.2 18.3 VqEY065J69 K16Y04N KC2016 12 27.05779 11 38 27.72 +52 49 25.8 18.4 VqEY065J69 K16Y04N KC2016 12 27.06362 11 38 22.01 +52 49 27.2 18.4 VqEY065J69 K16Y04N KC2016 12 27.09220 11 37 54.13 +52 49 33.3 qEY065J95 K16Y04N KC2016 12 27.09478 11 37 51.62 +52 49 33.6 qEY065J95 K16Y04N KC2016 12 27.09745 11 37 48.99 +52 49 34.3 18.1 RqEY065J95 K16Y04N KC2016 12 27.11809 11 37 28.44 +52 49 43.5 18.0 RqEY065K30 K16Y04N KC2016 12 27.12790 11 37 18.85 +52 49 45.1 17.8 RqEY065K30 K16Y04N KC2016 12 27.13851 11 37 08.43 +52 49 46.8 18.2 RqEY065K30 K16Y04N C2016 12 27.39647 11 33 03.09 +52 49 57.9 18.5 VqEY065I52 K16Y04N C2016 12 27.39808 11 33 01.52 +52 49 57.9 18.5 VqEY065I52 K16Y04N C2016 12 27.39968 11 32 59.96 +52 49 58.1 18.5 VqEY065I52 K16Y04N C2016 12 27.40135 11 32 58.33 +52 49 58.1 18.5 VqEY065I52 K16Y04N C2016 12 27.47836111 31 43.02 +52 50 00.3 18.0 GUEY065H01 K16Y04N KC2016 12 27.48177 11 31 38.00 +52 49 56.6 18.7 VqEY065W25 K16Y04N C2016 12 27.48549011 31 36.06 +52 50 00.0 18.0 GUEY065H01 K16Y04N KC2016 12 27.48727 11 31 32.78 +52 49 56.3 18.6 VqEY065W25 K16Y04N C2016 12 27.49430911 31 27.45 +52 49 59.5 17.9 GUEY065H01 K16Y04N C2016 12 27.49881211 31 23.06 +52 49 59.2 18.0 GUEY065H01 K16Y04N KC2016 12 27.83769 11 26 06.19 +52 48 18.5 SEY065C43 K16Y04N KC2016 12 27.84096 11 26 03.20 +52 48 17.7 SEY065C43 K16Y04N KC2016 12 27.84472 11 25 59.72 +52 48 17.6 SEY065C43 Observer details: 106 Crni Vrh. Observer B. Mikuz. 0.6-m f/3.3 Deltagraph + CCD. C23 Olmen. Observer A. Diepvens. 0.20-m f/9 refractor + CCD. C43 Hoyerswerda. Observer P. Lindner. 0.30-m f/6.3 Schmidt-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. I52 Steward Observatory, Mt. Lemmon Station. Observer D. C. Fuls. 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. J69 North Observatory, Clanfield. Observer D. Briggs. 0.41-m f/4.5 Newtonian reflector + CCD. J95 Great Shefford. Observer P. Birtwhistle. 0.40-m f/6.0 Schmidt-Cassegrain + CCD. K30 Luscherz. Observer L. Grimm. 0.25-m f/4.8 Newtonian reflector + CCD. T05 ATLAS-HKO, Haleakala. Observers L. Denneau, A. Heinze, H. Weiland, B. Stalder, J. Tonry, A. Sherstyuk. Measurers L. Denneau, A. Heinze, J. Tonry. 0.5-m f/2.0 Schmidt + CCD. W25 RMS Observatory, Cincinnati. Observer B. Rowe. 0.35-m Schmidt-Cassegrain + CCD. Z80 Northolt Branch Observatory. Observer G. Wells. Measurer D. Bamberger. 0.15-m f/10 Schmidt-Cassegrain + CCD + f/6.3 focal reducer. Z99 Clixby Observatory, Cleethorpes. Observer A. Mickleburgh. 0.36-m f/8 Schmidt-Cassegrain + CCD. Orbital elements: 2016 YN4 Earth MOID = 0.0804 AU Epoch 2017 Feb. 16.0 TT = JDT 2457800.5 MPC M 26.03527 (2000.0) P Q n 0.25700745 Peri. 39.53007 +0.93168929 -0.36035883 a 2.4500347 Node 341.43545 +0.28611341 +0.80564284 e 0.7111025 Incl. 8.26895 +0.22381729 +0.47019265 P 3.83 H 19.9 G 0.15 U 8 Residuals in seconds of arc 161224 T05 0.3- 0.5- 161226 Z80 0.7+ 0.1+ 161227 K30 0.1+ 0.2- 161224 T05 0.6+ 0.1- 161226 Z80 1.5- 0.0 161227 I52 0.1- 0.3+ 161224 T05 0.5- 0.8+ 161226 Z80 1.8- 0.4- 161227 I52 0.2- 0.1+ 161224 T05 0.2+ 0.5- 161226 C23 0.3+ 1.4+ 161227 I52 0.2- 0.1+ 161226 106 0.6- 1.2+ 161226 C23 0.2+ 0.1- 161227 I52 0.3- 0.0 161226 106 (2.2- 0.4+) 161226 C23 0.2- 0.1+ 161227 H01 0.0 0.2- 161226 106 1.2- 0.1+ 161227 J69 0.2- 0.1+ 161227 W25 0.9- 0.3+ 161226 H01 0.3+ 0.0 161227 J69 0.2- 0.2+ 161227 H01 0.1- 0.2- 161226 H01 0.3+ 0.1- 161227 J69 0.3- 0.1+ 161227 W25 0.3+ 0.7+ 161226 H01 0.2+ 0.1- 161227 J95 0.3+ 0.0 161227 H01 0.1- 0.3- 161226 H01 0.2+ 0.0 161227 J95 0.5+ 0.2- 161227 H01 0.1- 0.3- 161226 Z99 0.6- 0.9+ 161227 J95 0.3+ 0.1- 161227 C43 0.4- 0.2+ 161226 Z99 (2.4+ 1.7+) 161227 K30 0.5- 0.2- 161227 C43 0.1- 0.2- 161226 Z99 (1.7+ 1.6+) 161227 K30 0.0 0.2- 161227 C43 0.1- 0.1+ Ephemeris: 2016 YN4 a,e,i = 2.45, 0.71, 8 q = 0.7078 Date TT R. A. (2000) Decl. Delta r Elong. Phase V 2016 11 27 17 13 07.8 +04 46 34 0.2405 0.7875 29.9 141.3 23.3 ... 2016 12 12 15 32 02.2 +34 04 02 0.1658 0.9194 62.4 108.4 19.9 ... 2016 12 20 13 39 10.6 +48 30 08 0.1670 1.0020 91.4 79.0 18.8 ... 2016 12 26 11 55 46.7 +52 42 37 0.1858 1.0667 111.9 58.8 18.5 2016 12 27 11 39 21.6 +52 49 27 0.1902 1.0776 115.0 55.8 18.5 2016 12 28 11 23 33.0 +52 48 07 0.1949 1.0886 118.0 52.9 18.5 ... 2017 01 03 10 04 35.6 +50 40 11 0.2297 1.1548 134.0 37.8 18.5 ... 2017 01 11 08 58 45.2 +45 44 56 0.2908 1.2437 150.0 23.3 18.8 ... 2017 01 26 08 02 17.3 +37 35 59 0.4430 1.4090 160.0 13.8 19.7 A. U. Tomatic (C) Copyright 2016 MPC M.P.E.C. 2016-Y65


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