MPEC 2020-U24 : 2015 SC17
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M.P.E.C. 2020-U24 Issued 2020 October 16, 18:44 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 SC17
Revision to MPEC 2015-S103
Additional Observations:
K15S17C C2018 10 03.29426422 14 18.008-20 50 11.92 22.55GVEU024F52
K15S17C C2018 10 03.30664822 14 16.350-20 50 27.11 21.97GVEU024F52
K15S17C C2018 10 03.31903422 14 14.657-20 50 42.55 22.60GVEU024F52
K15S17C C2019 04 06.53317816 24 23.569-05 00 13.40 22.02GVEU024F51
K15S17C C2019 04 06.54575116 24 21.869-05 00 02.81 21.30GVEU024F51
K15S17C C2019 04 06.55825916 24 20.175-04 59 52.10 22.99GVEU024F51
K15S17C C2019 04 06.57078716 24 18.435-04 59 41.66 22.32GVEU024F51
K15S17C KC2019 04 25.45116 15 37 26.59 -01 20 49.3 oEU024291
K15S17C KC2019 04 25.46484 15 37 24.31 -01 20 42.3 oEU024291
K15S17C KC2019 04 25.47858 15 37 22.03 -01 20 35.5 oEU024291
K15S17C C2019 05 06.45407915 09 53.986-00 22 59.59 22.17GVEU024F51
K15S17C C2019 05 06.47940015 09 50.296-00 22 55.94 22.41GVEU024F51
K15S17C C2019 05 08.44494415 05 26.829-00 19 04.21 23.39GVEU024F51
Observer details:
291 LPL/Spacewatch II. Observer R. S. McMillan. Measurer T. H. Bressi.
1.8-m f/2.7 reflector + CCD.
F51 Pan-STARRS 1, Haleakala. Observers J. Bulger, K. Chambers, T. Lowe, A.
Schultz, M. Willman. Measurers S. Chastel, M. Huber, Y. Ramanjooloo, R.
Wainscoat, R. Weryk. 1.8-m Ritchey-Chretien + CCD.
F52 Pan-STARRS 2, Haleakala. Observers J. Bulger, K. Chambers, T. Dukes, T.
Lowe, A. Schultz, M. Willman. Measurers S. Chastel, M. Huber, Y.
Ramanjooloo, R. Wainscoat, R. Weryk. 1.8-m Ritchey-Chretien + CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc, reference and Delta-T
181003 F52 73.6+ 5.3+ 190508 F51 86.8+ 31.6+ MPO477824 +0.02 days
Orbital elements:
2015 SC17 Earth MOID = 0.0360 AU
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5 Veres
M 97.35426 (2000.0) P Q
n 0.64619973 Peri. 319.20734 -0.28856423 -0.95642642
a 1.3250274 Node 147.49258 +0.89856360 -0.28656610
e 0.3770223 Incl. 4.74853 +0.33062688 -0.05593188
P 1.53 H 23.0 G 0.15 U 1
Residuals in seconds of arc
150911 F51 0.1+ 0.2+ 151003 691 0.1- 1.0+ 151024 807 0.0 0.1-
150911 F51 0.1+ 0.2+ 151010 807 0.3- 0.1- 151024 807 0.1- 0.1+
150912 F51 0.1+ 0.2+ 151010 807 0.1+ 0.1- 151030 807 0.3- 0.0
150912 F51 0.1+ 0.1+ 151010 807 0.4+ 0.1+ 151030 807 0.4- 0.4-
150923 F51 0.1+ 0.5- 151010 807 0.3+ 0.2+ 151030 807 0.0 0.2-
150923 F51 0.0 0.1- 151010 807 0.2+ 0.3- 151030 807 0.3+ 0.0
150923 F51 0.3+ 0.3- 151012 807 0.3+ 0.1- 151030 807 0.1+ 0.2-
150924 H21 0.5- 0.1+ 151012 807 0.5+ 0.1+ 151030 807 0.0 0.1+
150924 H21 0.6- 0.1- 151012 807 0.4+ 0.3+ 181003 F52 0.0 0.0
150924 H21 0.4- 0.0 151012 807 0.0 0.1- 181003 F52 0.1+ 0.1+
150925 291 0.4- 0.3+ 151012 807 0.2+ 0.4- 181003 F52 0.3- 0.2-
150925 291 0.3- 1.1+ 151016 807 0.1+ 0.0 190406 F51 0.4- 0.2+
150925 291 0.1- 0.4+ 151016 807 0.1+ 0.1- 190406 F51 0.1- 0.1+
151002 705 0.3- 0.4+ 151016 807 0.1- 0.3- 190406 F51 0.2+ 0.2+
151002 705 0.3- 0.4+ 151016 807 0.2- 0.0 190406 F51 0.2- 0.0
151002 705 0.2- 0.0 151016 807 0.2- 0.2+ 190425 291 0.4+ 0.2-
151002 291 0.4- 0.1+ 151022 F51 0.1+ 0.0 190425 291 0.3+ 0.3+
151002 291 0.4- 0.1- 151022 F51 0.1- 0.2+ 190425 291 0.3+ 0.5+
151002 291 0.6- 0.4- 151022 F51 0.1+ 0.0 190506 F51 0.2+ 0.1-
151003 691 0.0 0.3+ 151024 807 0.3+ 0.0 190506 F51 0.3+ 0.2-
151003 691 0.3- 0.1- 151024 807 0.2+ 0.2- 190508 F51 0.3- 0.3-
Ephemeris:
2015 SC17 a,e,i = 1.33, 0.38, 5 q = 0.8255
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2020 09 16 11 55 44.2 +01 59 59 2.0414 1.0439 5.1 4.9 25.1
...
2020 10 01 12 48 34.0 -03 08 35 2.1288 1.1343 4.8 4.2 25.3
...
2020 10 09 13 15 10.9 -05 40 04 2.1768 1.1829 4.2 3.5 25.4
...
2020 10 15 13 34 33.9 -07 26 35 2.2126 1.2190 3.6 2.9 25.5
2020 10 16 13 37 45.1 -07 43 43 2.2185 1.2250 3.5 2.8 25.5
2020 10 17 13 40 55.7 -08 00 40 2.2244 1.2309 3.4 2.7 25.5
...
2020 10 23 13 59 44.7 -09 38 26 2.2591 1.2664 2.8 2.2 25.5
...
2020 10 31 14 24 15.6 -11 38 02 2.3036 1.3125 2.5 1.9 25.6
...
2020 11 15 15 08 45.6 -14 48 31 2.3783 1.3950 4.8 3.4 25.9
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