MPEC 2021-A154 : 2014 SM260
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M.P.E.C. 2021-A154 Issued 2021 January 12, 15:00 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
2014 SM260
Revision to MPEC 2014-S104
Additional Observations:
K14SQ0M KC2021 01 11.25683002 54 41.370+29 11 15.76 23.73GVEA154T14
K14SQ0M C2021 01 12.25611902 53 08.651+28 58 42.63 24.10GVEA154T14
K14SQ0M C2021 01 12.25871902 53 08.404+28 58 40.59 23.76GVEA154T14
K14SQ0M C2021 01 12.26132002 53 08.158+28 58 38.69 23.55GVEA154T14
Observer details:
T14 Mauna Kea-UH/Tholen NEO Follow-Up (CFHT). Observer L. Wells. Measurer D.
J. Tholen. 3.6-m f/4.1 reflector + MegaCam.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
210111 T14 0.00+ 0.03+ 210112 T14 0.00+ 0.03+ MPO315319 -0.53 days
Orbital elements:
2014 SM260 PHA, Earth MOID = 0.0292 AU
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5 Veres
M 323.27757 (2000.0) P Q
n 0.29020312 Peri. 247.12378 -0.71850451 +0.69345178
a 2.2594427 Node 336.66755 -0.57815768 -0.63834495
e 0.8841993 Incl. 7.78178 -0.38663286 -0.33412625
P 3.40 H 21.0 G 0.15 U 1
Residuals in seconds of arc
140923 G96 0.2- 0.2- 140924 H21 0.1- 0.2+ 141011 291 0.8- 0.1+
140923 G96 0.3+ 0.1- 140924 H21 0.1+ 0.3+ 141011 291 0.1- 0.3+
140923 G96 0.1- 0.1+ 140924 G96 0.2+ 0.4- 141011 291 0.1- 0.5+
140923 G96 0.3- 0.0 140924 G96 0.3- 0.3- 141022 568 0.0 0.0
140923 G96 0.1- 0.0 140926 G96 0.0 0.1- 141022 568 0.0 0.0
140923 G96 0.6+ 0.1+ 140926 G96 1.0- 0.1+ 210111 T14 0.0 0.0
140923 G96 0.2+ 0.2+ 140929 291 0.2+ 0.7+ 210112 T14 0.0 0.0
140923 J04 0.2+ 0.2- 140929 291 0.4- 0.1+ 210112 T14 0.0 0.1-
140924 J04 0.2- 0.1- 140929 291 0.5+ 0.6+ 210112 T14 0.0 0.0
140924 J04 0.1+ 0.1- 141003 568 0.0 0.0
140924 H21 0.1+ 0.4+ 141003 568 0.0 0.0
Ephemeris:
2014 SM260 a,e,i = 2.26, 0.88, 8 q = 0.2616
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2020 12 13 04 02 00.0 +34 36 38 1.2599 2.2082 159.2 9.1 23.8
...
2020 12 28 03 22 58.9 +32 10 38 1.2049 2.0474 138.4 18.6 23.9
...
2021 01 05 03 05 42.9 +30 31 02 1.2016 1.9568 126.9 23.7 24.0
...
2021 01 11 02 55 05.9 +29 14 30 1.2074 1.8864 118.5 27.3 24.0
2021 01 12 02 53 32.2 +29 01 55 1.2089 1.8745 117.1 27.8 24.0
2021 01 13 02 52 02.1 +28 49 25 1.2106 1.8625 115.8 28.4 24.0
...
2021 01 19 02 44 16.6 +27 37 13 1.2224 1.7892 107.9 31.6 24.0
...
2021 01 27 02 37 08.3 +26 10 54 1.2406 1.6876 98.0 35.3 24.1
...
2021 02 11 02 32 22.3 +24 06 23 1.2675 1.4841 81.3 41.1 24.0
A. U. Tomatic (C) Copyright 2021 MPC M.P.E.C. 2021-A154
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