MPEC 2018-P05 : 2017 YW5
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M.P.E.C. 2018-P05 Issued 2018 Aug. 3, 11:33 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 YW5
Revision to MPEC 2017-Y132
Additional Observations:
K17Y05W C2018 07 17.48236521 25 42.459+07 20 48.40 22.52GVEP005T12
K17Y05W C2018 07 17.49171821 25 41.273+07 20 40.20 22.79GVEP005T12
K17Y05W KC2018 08 02.37226720 53 13.358+02 19 31.31 22.37GVEP005T12
K17Y05W C2018 08 02.49748720 52 57.463+02 16 45.37 22.64GVEP005T12
Observer details:
T12 Mauna Kea-UH/Tholen NEO Follow-Up (2.24-m). Observer D. Fohring.
Measurer D. J. Tholen. 2.24-m f/10.1 reflector + CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc, reference and Delta-T
180717 T12 16.3- 1.4- 180802 T12 14.6- 0.3+ MPO438046 -0.0010 day
Orbital elements:
2017 YW5 Earth MOID = 0.0959 AU
Epoch 2018 Mar. 23.0 TT = JDT 2458200.5 MPC
M 3.78914 (2000.0) P Q
n 0.68811992 Peri. 357.37923 -0.99758163 +0.06817967
a 1.2706520 Node 186.57606 -0.06143191 -0.95580604
e 0.3119983 Incl. 6.77304 -0.03251167 -0.28598311
P 1.43 H 23.0 G 0.15 U 4
Residuals in seconds of arc
171225 F51 0.0 0.1- 171226 F51 0.2+ 0.0 180120 807 0.3- 0.1+
171225 F51 0.3+ 0.1- 171226 F51 0.3+ 0.1+ 180120 807 0.1+ 0.4+
171225 F51 0.3- 0.2+ 171228 807 0.4+ 0.1- 180120 807 0.0 0.1-
171225 F51 0.0 0.1+ 171228 807 0.1+ 0.3- 180203 807 0.0 0.0
171226 926 0.2- 0.1+ 171228 807 0.1+ 0.2- 180203 807 0.1+ 0.0
171226 926 0.2+ 0.0 171228 291 0.3- 0.0 180203 807 0.2+ 0.0
171226 926 0.0 0.2- 171228 291 0.4- 0.1+ 180204 807 0.0 0.0
171226 568 0.2+ 0.1+ 171228 291 0.7- 0.2- 180204 807 0.2+ 0.0
171226 568 0.2+ 0.1+ 180114 I52 1.2- 0.6- 180204 807 0.0 0.0
171226 568 0.2+ 0.0 180114 I52 0.1+ 0.2- 180717 T12 0.0 0.1-
171226 691 0.2+ 0.0 180114 I52 0.5+ 0.7- 180717 T12 0.1- 0.1-
171226 691 0.5+ 0.0 180119 807 0.4- 0.4+ 180802 T12 0.0 0.0
171226 691 0.2- 0.1+ 180119 807 0.4- 0.2+ 180802 T12 0.1+ 0.1-
171226 F51 0.2+ 0.0 180119 807 0.4- 0.2+
Ephemeris:
2017 YW5 a,e,i = 1.27, 0.31, 7 q = 0.8742
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2018 07 04 21 48 11.7 +09 34 59 0.3947 1.2881 125.8 39.8 23.1
...
2018 07 19 21 22 42.3 +06 57 57 0.3941 1.3560 144.3 25.9 22.8
...
2018 07 27 21 06 14.2 +04 34 25 0.4042 1.3900 153.9 18.7 22.7
...
2018 08 02 20 53 57.3 +02 27 51 0.4183 1.4144 159.6 14.5 22.7
2018 08 03 20 51 58.6 +02 05 45 0.4212 1.4184 160.3 14.0 22.7
2018 08 04 20 50 01.5 +01 43 28 0.4244 1.4224 160.9 13.5 22.7
...
2018 08 10 20 39 04.6 -00 32 19 0.4469 1.4454 162.0 12.5 22.8
...
2018 08 18 20 27 12.6 -03 29 28 0.4869 1.4745 157.7 15.1 23.1
...
2018 09 02 20 15 14.0 -08 11 24 0.5900 1.5238 143.4 23.3 23.9
A. U. Tomatic (C) Copyright 2018 MPC M.P.E.C. 2018-P05
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