[Iaude] MPEC U14: 2018 SA1 [a=2.96,e=0.60,i=30.2,H=21.05]
mpec at marsden.cfa.harvard.edu
mpec at marsden.cfa.harvard.edu
Mon Oct 16 10:10:00 EDT 2023
M.P.E.C. 2023-U14 Issued 2023 October 16, 14:08 UT
The Minor Planet Electronic Circulars contain information on unusual
minor planets, routine data on comets and natural satellites,
and occasional editorial announcements. 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 at CFA.HARVARD.EDU
URL https://www.minorplanetcenter.net/ ISSN 1523-6714
2018 SA1
Revision to MPEC 2018-S41
Additional Observations:
K18S01A KC2023 09 15.10948518 30 37.624-02 19 46.31 21.40GVEU014I52
K18S01A KC2023 09 15.11412418 30 38.390-02 20 06.29 21.22GVEU014I52
K18S01A KC2023 09 15.11877418 30 39.143-02 20 26.38 21.03GVEU014I52
K18S01A KC2023 09 15.12342018 30 39.866-02 20 46.21 21.06GVEU014I52
K18S01A 0C2023 10 15.22036320 29 29.829-33 56 20.86 22.29GVEU014T12
K18S01A 0C2023 10 15.22328920 29 30.668-33 56 28.25 22.36GVEU014T12
K18S01A 0C2023 10 15.22490520 29 31.131-33 56 32.36 22.21GVEU014T12
Observer details:
I52 Steward Observatory, Mt. Lemmon Station. Observer D. C. Fuls. Measurers
E. J. Christensen, D. Fay, J. B. Fazekas, D. C. Fuls, A. R. Gibbs, A. D.
Grauer, H. Groeller, J. K. Hogan, R. A. Kowalski, S. M. Larson, G. J.
Leonard, D. Rankin, R. L. Seaman, A. Serrano, F. C. Shelly, K. W.
Wierzchos. 1.0-m prime focus + CCD.
T12 University of Hawaii 88-inch telescope, Maunakea. Observer D. J. Tholen.
2.24-m f/10.1 reflector + 2112 x 2112 pixels STA1600 10k CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
230915 I52 0.17- 0.06- 231015 T12 0.20- 0.15- E2023-P36 -0.00 days
Orbital elements:
2018 SA1 Earth MOID = 0.1893 AU
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5 Veres
M 356.38626 (2000.0) P Q
n 0.19318553 Peri. 179.92555 +0.96647328 +0.22231568
a 2.9636004 Node 165.18609 -0.23583825 +0.96644872
e 0.5960887 Incl. 30.16369 -0.10153675 -0.12865695
P 5.10 H 21.05 G 0.15 U 1
Residuals in seconds of arc
180916 G96 0.4+ 0.5- 180918 I52 0.1+ 0.3+ 181106 807 0.2+ 0.0
180916 G96 0.4- 0.2- 180918 I52 0.1+ 0.2+ 181106 807 0.1- 0.2+
180916 G96 0.1- 0.1+ 180918 I52 0.1- 0.2- 181129 807 0.2- 0.5+
180916 G96 0.0 0.2- 180919 L01 0.9+ 0.8+ 181129 807 0.1- 0.2-
180916 G96 0.1- 0.0 180919 L01 0.5+ 0.2- 181129 807 0.0 0.3-
180916 G96 0.3+ 0.9- 181006 474 0.3- 0.1- 230915 I52 0.2- 0.1+
180916 G96 0.1- 1.2- 181006 474 0.1- 0.1- 230915 I52 0.1+ 0.1+
180916 G96 0.5- 1.0- 181006 474 0.4+ 0.2- 230915 I52 0.2+ 0.0
180917 I52 0.5- 0.1- 181006 474 0.3- 0.2- 230915 I52 0.1- 0.1+
180917 I52 0.2- 0.2+ 181019 807 0.2+ 0.2+ 231015 T12 0.0 0.0
180917 I52 0.3+ 0.4+ 181019 807 0.1+ 0.1+ 231015 T12 0.0 0.0
180917 I52 0.2- 0.1- 181019 807 0.1+ 0.2+ 231015 T12 0.0 0.1-
180918 I52 0.2+ 0.4- 181106 807 0.0 0.0
Ephemeris:
2018 SA1 a,e,i = 2.96, 0.60, 30 q = 1.1970
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2023 09 16 18 33 08.3 -03 23 28 0.4620 1.2121 105.2 53.2 21.7
...
2023 10 01 19 25 06.3 -21 02 10 0.4733 1.1971 102.6 54.7 21.8
...
2023 10 09 19 59 49.3 -28 59 20 0.5018 1.2003 101.0 54.8 21.9
...
2023 10 15 20 28 24.6 -33 46 48 0.5324 1.2078 99.8 54.5 22.1
2023 10 16 20 33 20.3 -34 28 14 0.5381 1.2095 99.6 54.4 22.1
2023 10 17 20 38 18.1 -35 07 48 0.5441 1.2113 99.4 54.3 22.1
...
2023 10 23 21 08 38.1 -38 26 10 0.5831 1.2244 98.4 53.5 22.3
...
2023 10 31 21 49 20.0 -41 12 32 0.6427 1.2481 97.1 52.1 22.5
...
2023 11 15 23 00 28.3 -42 20 02 0.7721 1.3093 95.2 48.8 22.9
A. U. Tomatic (C) Copyright 2023 MPC M.P.E.C. 2023-U14
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