MPEC 2017-Y109: 2017 YX4
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M.P.E.C. 2017-Y109 Issued 2017 Dec. 26, 19:41 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 YX4
Observations:
K17Y04X* C2017 12 24.49245 04 37 06.55 +39 09 31.4 18.9 oUEY109T05
K17Y04X C2017 12 24.50496 04 37 01.34 +39 08 28.5 19.4 oUEY109T05
K17Y04X C2017 12 24.51706 04 36 56.40 +39 07 27.3 19.0 oUEY109T05
K17Y04X C2017 12 24.51752 04 36 56.24 +39 07 25.8 18.9 oUEY109T05
K17Y04X C2017 12 24.52955 04 36 51.32 +39 06 24.3 18.6 oUEY109T05
K17Y04X C2017 12 24.53001 04 36 51.13 +39 06 21.7 18.6 oUEY109T05
K17Y04X C2017 12 24.54211 04 36 46.30 +39 05 20.3 18.9 oUEY109T05
K17Y04X KC2017 12 25.10451 04 33 25.96 +38 19 33.6 18.6 RqEY109H36
K17Y04X KC2017 12 25.11277 04 33 22.44 +38 18 53.4 18.7 RqEY109H36
K17Y04X KC2017 12 25.11747 04 33 20.41 +38 18 30.1 18.3 RqEY109H36
K17Y04X C2017 12 25.12622 04 33 18.94 +38 17 54.2 18.9 RoEY109926
K17Y04X C2017 12 25.13028 04 33 17.22 +38 17 35.0 19.1 RoEY109926
K17Y04X C2017 12 25.13428 04 33 15.48 +38 17 15.4 19.2 RoEY109926
K17Y04X C2017 12 25.24621 04 32 26.36 +38 07 55.4 18.4 GUEY109I52
K17Y04X KC2017 12 25.24991 04 32 23.63 +38 07 39.1 oEY109711
K17Y04X C2017 12 25.25279 04 32 23.42 +38 07 21.6 18.6 GUEY109I52
K17Y04X C2017 12 25.25297 04 32 23.33 +38 07 20.1 18.6 GUEY109I52
K17Y04X IC2017 12 25.25324 04 32 22.18 +38 07 22.1 oEY109711
K17Y04X KC2017 12 25.25598 04 32 20.94 +38 07 07.8 oEY109711
K17Y04X C2017 12 25.25831 04 32 20.99 +38 06 52.7 18.2 GUEY109I52
K17Y04X KC2017 12 25.80682 04 28 49.82 +37 17 25.7 19.0 RqEY109113
K17Y04X KC2017 12 25.81006 04 28 48.45 +37 17 08.2 19.2 RqEY109113
K17Y04X KC2017 12 25.81329 04 28 47.02 +37 16 50.7 19.6 RqEY109113
K17Y04X KC2017 12 25.81653 04 28 45.63 +37 16 33.9 19.0 RqEY109113
K17Y04X C2017 12 25.87028 04 28 21.82 +37 11 46.1 qEY109246
K17Y04X C2017 12 25.87082 04 28 21.56 +37 11 41.8 qEY109246
K17Y04X FC2017 12 25.87401 04 28 20.20 +37 11 25.1 qEY109246
K17Y04X KC2017 12 25.92092 04 27 58.58 +37 07 02.3 18.8 RoEY109K88
K17Y04X KC2017 12 25.92436 04 27 57.06 +37 06 42.5 18.9 RoEY109K88
K17Y04X KC2017 12 25.92780 04 27 55.52 +37 06 22.8 18.8 RoEY109K88
K17Y04X C2017 12 26.20085 04 26 09.46 +36 41 04.2 UEY109I52
K17Y04X C2017 12 26.20103 04 26 09.37 +36 41 03.4 UEY109I52
K17Y04X C2017 12 26.20236 04 26 08.74 +36 40 55.7 19.1 GUEY109I52
Observer details:
113 Volkssternwarte Drebach, Schoenbrunn. Observer G. Lehmann. 0.5-m f/4.6
reflector + CCD.
246 Klet Observatory-KLENOT. Observers M. Tichy, J. Ticha. Measurer M. Tichy.
1.06-m KLENOT Telescope + CCD.
711 McDonald Observatory. Observer J. G. Ries. 2.1-m reflector + CCD + focal
reducer.
926 Tenagra II Observatory. Observers M. Schwartz, P. R. Holvorcem. Measurer
M. Schwartz. 0.81-m f/7 Ritchey-Chretien + CCD.
H36 Sandlot Observatory, Scranton. Observer G. Hug. 0.56-m reflector + CCD.
I52 Steward Observatory, Mt. Lemmon Station. 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. 1.0-m reflector + CCD.
K88 GINOP-KHK, Piszkesteto. Observer K. Sarneczky. 0.60-m Schmidt + CCD.
T05 ATLAS-HKO, Haleakala. Observers L. Denneau, A. Heinze, H. Weiland,
J. Tonry. Measurers L. Denneau, H. Flewelling, A. Heinze, B. Stalder,
J. Tonry. 0.5-m f/2.0 Schmidt + CCD.
Orbital elements:
2017 YX4 Earth MOID = 0.0179 AU
Epoch 2017 Sept. 4.0 TT = JDT 2458000.5 MPC
M 212.91859 (2000.0) P Q
n 0.80461296 Peri. 256.93792 -0.98820482 -0.05967332
a 1.1448398 Node 279.50953 +0.11377804 -0.90251137
e 0.2500584 Incl. 8.22137 -0.10249776 -0.42651181
P 1.22 H 23.7 G 0.15 U 7
Residuals in seconds of arc
171224 T05 0.0 0.5+ 171225 926 0.2+ 0.5+ 171225 113 0.1- 0.7-
171224 T05 0.4- 0.1+ 171225 926 0.1- 0.1+ 171225 113 0.2+ 0.1-
171224 T05 0.0 0.3- 171225 I52 0.1+ 0.1- 171225 246 0.1+ 1.2+
171224 T05 0.3+ 0.5+ 171225 711 0.2- 0.1+ 171225 246 0.2- 0.1-
171224 T05 0.0 0.2- 171225 I52 0.2- 0.2+ 171225 246 0.5+ 0.9+
171224 T05 0.0 0.4- 171225 I52 0.3- 0.4- 171225 K88 0.1- 0.3+
171224 T05 0.6+ 0.4- 171225 711 0.1+ 0.5+ 171225 K88 0.0 0.2+
171225 H36 0.2- 0.3- 171225 711 0.2- 0.5+ 171225 K88 0.2- 0.1+
171225 H36 0.1+ 0.4- 171225 I52 0.0 0.1- 171226 I52 0.2+ 0.4-
171225 H36 0.1- 0.8- 171225 113 0.3- 0.5- 171226 I52 0.1+ 0.2-
171225 926 0.0 0.2+ 171225 113 0.2+ 0.6- 171226 I52 0.1- 0.2-
Ephemeris:
2017 YX4 a,e,i = 1.14, 0.25, 8 q = 0.8586
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2017 11 26 05 57 36.1 +47 57 11 0.2129 1.1677 144.9 29.0 22.0
...
2017 12 11 05 35 33.7 +47 25 16 0.1334 1.1071 155.1 22.0 20.6
...
2017 12 19 05 06 43.9 +44 17 11 0.09672 1.0740 157.5 20.5 19.8
...
2017 12 25 04 34 02.0 +38 28 31 0.07239 1.0491 154.0 24.3 19.2
2017 12 26 04 27 29.4 +37 00 08 0.06866 1.0450 152.6 25.6 19.2
2017 12 27 04 20 36.3 +35 19 52 0.06505 1.0408 151.0 27.3 19.1
...
2018 01 02 03 31 15.2 +19 28 08 0.04673 1.0163 134.0 44.1 18.8
...
2018 01 10 02 00 30.3 -20 11 58 0.03904 0.9845 90.5 87.3 19.7
...
2018 01 25 22 39 57.8 -57 30 45 0.07955 0.9304 45.4 131.1 23.9
A. U. Tomatic (C) Copyright 2017 MPC M.P.E.C. 2017-Y109
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