MPEC 2017-M66 : 2015 OX78
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M.P.E.C. 2017-M66 Issued 2017 June 25, 18:08 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
2015 OX78
Revision to MPEC 2015-P46
Additional Observations:
K15O78X KC2017 06 24.36511721 09 08.39 -04 50 16.3 22.0 VuEM066H21
K15O78X KC2017 06 24.36815721 09 08.35 -04 50 20.6 22.4 VuEM066H21
K15O78X KC2017 06 24.37140121 09 08.31 -04 50 25.2 22.1 VuEM066H21
K15O78X KC2017 06 25.33664921 09 01.39 -05 13 38.9 22.1 VuEM066H21
K15O78X KC2017 06 25.34056921 09 01.36 -05 13 44.4 22.2 VuEM066H21
K15O78X KC2017 06 25.36388921 09 01.09 -05 14 18.7 22.5 VuEM066H21
Observer details:
H21 Astronomical Research Observatory, Westfield. Observer R. Holmes.
Measurers S. Foglia, L. Buzzi, T. Linder, R. Holmes. 1.3-m f/4.0
astrograph + CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc, reference and Delta-T
170624 H21 1.1- 0.9+ 170625 H21 0.5- 0.3- MPO370385 +0.00029 day
Orbital elements:
2015 OX78 Earth MOID = 0.1343 AU
Epoch 2017 Sept. 4.0 TT = JDT 2458000.5 MPC
M 314.87806 (2000.0) P Q
n 0.49868425 Peri. 296.23482 +0.37626027 -0.73503808
a 1.5748975 Node 119.53766 +0.89308737 +0.44978035
e 0.3950797 Incl. 40.41388 -0.24662353 +0.50736245
P 1.98 H 20.2 G 0.15 U 1
Residuals in seconds of arc
150628 F51 0.1+ 0.2+ 160102 807 0.1+ 0.1- 160128 H21 0.1+ 0.0
150628 F51 0.1+ 0.2+ 160109 807 0.1+ 0.3+ 160129 807 0.2+ 0.5-
150628 F51 0.2+ 0.1+ 160109 807 0.0 0.4+ 160129 807 0.4+ 0.4-
150709 F51 0.1+ 0.0 160109 807 0.1- 0.1+ 160129 807 0.3+ 0.2-
150709 F51 0.1+ 0.0 160109 807 0.1- 0.0 160129 807 0.3+ 0.2-
150711 F51 0.1+ 0.1+ 160109 807 0.1- 0.2+ 160129 807 0.3+ 0.4-
150711 F51 0.1+ 0.0 160115 807 0.2- 0.1- 160130 H21 0.2+ 0.5+
150711 F51 0.1+ 0.0 160115 807 0.0 0.3- 160130 H21 0.0 0.6+
150726 F51 0.3- 0.2- 160115 807 0.2+ 0.2+ 160130 H21 0.3+ 0.6+
150726 F51 0.1- 0.2- 160116 807 0.2- 0.3- 160130 F51 0.2+ 0.8+
150726 F51 0.1+ 0.1- 160116 807 0.6- 0.5- 160130 F51 0.2+ 0.8+
150727 W85 0.1- 0.4- 160116 807 0.2- 0.1+ 160130 F51 0.1+ 0.5+
150727 W85 0.1- 0.4- 160116 807 0.0 0.0 160131 926 0.0 0.4+
150727 W85 0.2- 0.2- 160116 807 0.3- 0.1- 160131 926 0.0 0.5-
150802 807 0.0 0.1- 160118 291 0.1+ 0.0 160131 926 0.1+ 0.3-
150802 807 0.3- 0.0 160118 291 0.1+ 0.2- 160202 H21 0.2+ 0.2-
150802 807 0.3- 0.1- 160123 807 0.6- 0.0 160202 H21 0.2- 0.0
150821 474 0.7- 0.0 160123 807 0.1- 0.2- 160202 H21 0.2- 0.0
150821 474 0.5- 0.5+ 160123 807 0.3- 0.1- 160203 926 0.6- 0.7-
150821 474 0.2- 0.2- 160123 807 0.1- 0.1+ 160203 926 0.0 0.4-
151222 807 0.4+ 0.0 160125 807 0.4- 1.0- 160203 926 0.5+ 0.1-
151222 807 0.1+ 0.1+ 160125 807 0.6- 0.3- 160203 291 0.3- 0.1-
151222 807 0.5- 0.1+ 160125 807 0.3- 0.3- 160203 291 0.3- 0.3-
151223 807 0.1+ 0.2+ 160126 807 0.4+ 0.4- 160203 291 0.5- 0.1-
151223 807 0.1+ 0.1+ 160126 807 0.6- 0.0 160305 291 0.5+ 0.2-
151223 807 0.3- 0.6+ 160126 807 0.1+ 0.3- 160305 291 0.3+ 0.4-
151229 807 0.3- 0.3- 160126 807 0.3+ 0.6- 160305 291 0.3+ 0.1-
151229 807 0.2- 0.0 160126 807 0.3+ 0.9- 170624 H21 0.2- 0.6+
151229 807 0.3- 0.0 160127 H36 0.2+ 0.2+ 170624 H21 0.3- 0.6+
151229 807 0.4- 0.2- 160127 H36 0.2+ 0.1- 170624 H21 0.5- 0.5+
151229 807 0.2- 0.2- 160127 H36 0.1+ 0.2- 170625 H21 0.0 1.0-
160102 807 0.2+ 0.2- 160128 H21 0.1- 0.2- 170625 H21 0.2+ 0.7-
160102 807 0.2+ 0.1- 160128 H21 0.1- 0.5- 170625 H21 0.4+ 0.6-
160102 807 0.2+ 0.1+ 160128 H21 0.1- 0.2-
160102 807 0.3+ 0.4+ 160128 H21 0.2- 0.4-
Ephemeris:
2015 OX78 a,e,i = 1.57, 0.40, 40 q = 0.9527
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2017 05 26 20 57 48.6 +01 11 36 1.2812 1.8463 106.6 31.7 23.4
...
2017 06 10 21 06 41.9 -00 44 59 1.0515 1.7812 119.0 29.9 22.9
...
2017 06 18 21 08 57.5 -02 40 24 0.9351 1.7443 126.7 27.8 22.5
...
2017 06 24 21 09 10.4 -04 41 38 0.8522 1.7157 133.1 25.6 22.2
2017 06 25 21 09 04.0 -05 05 17 0.8389 1.7108 134.2 25.2 22.1
2017 06 26 21 08 55.0 -05 30 01 0.8257 1.7060 135.4 24.7 22.1
...
2017 07 02 21 07 01.8 -08 23 05 0.7502 1.6762 142.7 21.6 21.7
...
2017 07 10 21 01 29.6 -13 29 11 0.6610 1.6354 153.6 16.0 21.2
...
2017 07 25 20 38 55.8 -27 20 50 0.5440 1.5553 170.9 5.9 20.3
A. U. Tomatic (C) Copyright 2017 MPC M.P.E.C. 2017-M66
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