MPEC 2020-U177 : 2016 RW
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M.P.E.C. 2020-U177 Issued 2020 October 22, 16:23 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 RW
Revision to MPEC 2016-R48
Additional Observations:
K16R00W KC2018 12 13.15547 00 21 19.69 -04 03 13.6 oEU177291
K16R00W KC2018 12 13.17792 00 21 30.48 -04 02 44.1 oEU177291
K16R00W KC2018 12 14.06792 00 28 53.02 -03 43 29.7 oEU177291
K16R00W KC2018 12 14.07685 00 28 57.29 -03 43 18.4 22.3 RoEU177291
K16R00W KC2018 12 14.08586 00 29 01.55 -03 43 06.1 22.5 RoEU177291
Observer details:
291 LPL/Spacewatch II. Observer M. T. Read. Measurer T. H. Bressi. 1.8-m
f/2.7 reflector + CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
181213 291 0.16- 0.01- 181214 291 0.16- 0.01- MPO435123 -0.09 days
Orbital elements:
2016 RW Earth MOID = 0.0153 AU
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5 Veres
M 7.99945 (2000.0) P Q
n 0.48124170 Peri. 158.70243 +0.79680432 -0.59995873
a 1.6127259 Node 238.36704 +0.54148439 +0.76171241
e 0.3846539 Incl. 4.83611 +0.26813713 +0.24462979
P 2.05 H 23.2 G 0.15 U 0
Residuals in seconds of arc
160903 G96 0.4+ 0.3+ 160904 H21 0.3- 0.0 160929 H45 0.5- 0.4-
160903 G96 0.1- 0.1+ 160904 H21 0.3- 0.0 160929 H45 0.0 0.6-
160903 G96 0.5- 0.0 160904 658 0.7+ 1.2+ 160929 H45 0.0 0.2-
160903 G96 0.2- 0.1- 160904 658 0.7+ 1.0+ 160929 H45 0.0 0.3-
160903 G96 0.8+ 0.0 160904 658 0.8+ 0.9+ 160929 H45 0.0 0.1+
160903 G96 1.3- 1.1+ 160904 G96 0.4- 0.6- 161003 204 0.1+ 0.0
160903 G96 0.4- 0.2- 160904 G96 0.5- 0.2+ 161003 204 0.1- 0.2-
160903 691 0.1+ 0.2- 160904 G96 0.2- 0.3- 161003 204 0.1- 0.1-
160903 691 0.3- 0.2+ 160904 G96 0.5- 0.3+ 161005 G58 0.2+ 0.1+
160903 691 0.2- 0.3- 160905 658 0.4+ 0.1+ 161005 G58 0.1+ 0.0
160903 291 0.3- 0.1+ 160905 658 0.3+ 0.1- 161005 G58 0.0 0.0
160903 291 0.2- 0.4+ 160905 658 0.1+ 0.1- 161015 C51 0.2- 0.3-
160903 291 0.2+ 0.1+ 160905 291 0.1+ 0.2+ 161021 926 0.1- 0.6-
160903 033 0.1+ 0.3+ 160905 291 0.3+ 0.3+ 161021 926 0.3- 0.3+
160903 033 0.0 0.3- 160905 291 0.3+ 0.0 161021 926 0.2- 0.2+
160903 033 0.2- 0.4- 160909 691 0.6+ 0.7- 161206 807 0.0 0.2-
160903 033 0.1+ 0.1- 160909 691 0.7+ 1.0- 161206 807 0.1- 0.1+
160903 033 0.1+ 0.2- 160917 705 0.0 0.0 161206 807 0.5- 0.8+
160903 033 0.0 0.1- 160917 705 0.1+ 0.1- 161220 291 0.9+ 0.1-
160903 033 0.2- 0.2- 160917 705 0.0 0.3- 161220 291 0.5+ 0.3-
160903 033 0.1+ 0.1+ 160918 926 0.0 0.0 181213 291 0.4- 0.0
160904 033 0.4- 0.2+ 160918 926 0.1+ 0.3+ 181213 291 0.3- 0.5+
160904 033 0.8- 0.4- 160925 926 0.1+ 0.3+ 181214 291 0.4+ 0.3+
160904 033 0.0 0.1- 160925 926 0.5- 0.1+ 181214 291 0.4+ 0.1-
160904 H21 0.1- 0.2- 160929 H45 0.2+ 0.4+ 181214 291 0.3- 0.4+
Ephemeris:
2016 RW a,e,i = 1.61, 0.38, 5 q = 0.9924
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2020 09 22 18 03 26.8 -14 29 38 0.6597 1.2170 91.7 55.5 24.7
...
2020 10 07 18 33 36.6 -14 55 55 0.6570 1.1408 84.4 60.7 24.7
...
2020 10 15 18 53 27.4 -14 59 46 0.6486 1.1042 81.3 63.2 24.7
...
2020 10 21 19 10 00.8 -14 56 01 0.6391 1.0792 79.4 65.0 24.7
2020 10 22 19 12 54.6 -14 54 45 0.6373 1.0753 79.1 65.3 24.7
2020 10 23 19 15 50.7 -14 53 17 0.6354 1.0714 78.8 65.6 24.7
...
2020 10 29 19 34 15.9 -14 40 06 0.6227 1.0498 77.3 67.4 24.6
...
2020 11 06 20 00 58.7 -14 09 29 0.6027 1.0257 75.8 69.5 24.6
...
2020 11 21 20 57 56.8 -12 23 32 0.5597 0.9974 74.6 72.7 24.5
A. U. Tomatic (C) Copyright 2020 MPC M.P.E.C. 2020-U177
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