MPEC 2023-M173 : 2018 SZ
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M.P.E.C. 2023-M173 Issued 2023 June 30, 14:07 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@CFA.HARVARD.EDU
URL https://www.minorplanetcenter.net/ ISSN 1523-6714
2018 SZ
Revision to MPEC 2018-S40
Additional Observations:
K18S00Z KC2014 02 09.47015108 53 02.768-03 41 46.39 22.19GVEM173F51
K18S00Z C2016 04 10.40351614 50 39.146+13 53 45.86 23.93GVEM173F51
K18S00Z C2016 04 10.41453414 50 38.377+13 54 01.45 23.70GVEM173F51
K18S00Z C2016 04 10.42578014 50 37.607+13 54 17.45 22.87GVEM173F51
K18S00Z C2016 04 10.43680014 50 36.855+13 54 33.00 23.73GVEM173F51
K18S00Z KC2023 06 28.34380818 13 18.916+25 07 47.06 22.82GVEM173V06
K18S00Z KC2023 06 28.35868918 13 17.526+25 07 46.96 22.91GVEM173V06
K18S00Z KC2023 06 28.37356718 13 16.115+25 07 46.81 22.98GVEM173V06
Observer details:
F51 Pan-STARRS 1, Haleakala. Observers J. Bulger, K. Chambers, T. Lowe, P.
Minguez, A. Schultz, I. Smith. Measurers S. Chastel, J. Fairlamb, M.
Huber, Y. Ramanjooloo, R. Wainscoat, R. Weryk. 1.8-m Ritchey-Chretien +
CCD.
V06 Catalina Sky Survey-Kuiper. Observer J. K. Hogan. 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. 1.55-m
reflector + 1K CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
140209 F51 0.21- 0.00- 230628 V06 0.21- 0.01- MPO473502 +0.13 days
Orbital elements:
2018 SZ Earth MOID = 0.1362 AU
Epoch 2023 Feb. 25.0 TT = JDT 2460000.5 Veres
M 208.13112 (2000.0) P Q
n 0.57982716 Peri. 218.36897 +0.92741937 -0.36171468
a 1.4243072 Node 162.11020 +0.37082418 +0.92243364
e 0.2224230 Incl. 18.04628 -0.04881334 +0.13519866
P 1.70 H 22.12 G 0.15 U 1
Residuals in seconds of arc
140209 F51 0.2+ 0.4- 180918 L01 0.3+ 0.4- 181014 474 0.0 0.1+
160410 F51 0.2+ 0.1+ 180918 I52 0.1- 0.2- 181014 474 0.1+ 0.1+
160410 F51 0.1- 0.0 180918 I52 0.0 0.4- 181014 474 0.1- 0.0
160410 F51 0.2- 0.1+ 180918 I52 0.5- 0.2- 181101 807 0.4- 0.1+
160410 F51 0.2- 0.0 180918 I52 0.1- 0.2- 181101 807 0.2- 0.0
180916 G96 0.4+ 0.1- 180919 H21 0.1+ 0.1- 181101 807 0.2- 0.1+
180916 G96 0.1+ 0.2+ 180919 H21 0.2+ 0.1- 181102 807 0.4- 0.3+
180916 G96 0.2+ 0.3+ 180922 I52 0.6- 0.3- 181102 807 0.0 0.0
180916 G96 0.2- 0.0 180922 I52 0.1- 0.1- 181102 807 0.3+ 0.0
180916 V06 0.5+ 0.3- 180922 I52 0.0 0.2+ 181201 807 0.1+ 0.1+
180916 V06 0.1- 0.0 180922 I52 0.2- 0.5- 181201 807 0.0 0.1+
180916 V06 0.2- 0.1+ 180929 I52 0.9+ 0.2+ 181201 807 0.1+ 0.2+
180916 V06 0.2- 0.1- 180929 I52 0.1- 0.1- 190105 807 0.3+ 0.1+
180917 I52 0.2- 0.2+ 180929 I52 0.2- 0.3+ 190105 807 0.1+ 0.2-
180917 I52 0.1+ 0.1- 180929 I52 0.3+ 0.2+ 190105 807 0.0 0.0
180917 I52 0.3+ 0.4+ 181013 807 0.2- 0.2+ 230628 V06 0.0 0.1-
180917 I52 0.2+ 0.0 181013 807 0.2- 0.1- 230628 V06 0.1+ 0.1+
180918 L01 0.0 0.6+ 181013 807 0.0 0.1+ 230628 V06 0.1- 0.3+
Ephemeris:
2018 SZ a,e,i = 1.42, 0.22, 18 q = 1.1075
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2023 05 31 18 42 19.1 +20 12 24 0.6851 1.5267 126.9 32.1 23.6
...
2023 06 15 18 30 47.4 +23 53 27 0.6049 1.4827 130.7 31.3 23.2
...
2023 06 23 18 20 53.9 +24 55 32 0.5703 1.4581 131.5 31.5 23.1
...
2023 06 29 18 12 21.4 +25 07 34 0.5481 1.4392 131.4 32.0 23.0
2023 06 30 18 10 52.7 +25 06 24 0.5448 1.4361 131.4 32.1 22.9
2023 07 01 18 09 23.4 +25 04 18 0.5414 1.4329 131.3 32.2 22.9
...
2023 07 07 18 00 24.2 +24 31 31 0.5234 1.4136 130.5 33.2 22.9
...
2023 07 15 17 48 58.9 +22 52 35 0.5039 1.3876 128.5 35.0 22.8
...
2023 07 30 17 33 27.9 +17 06 22 0.4806 1.3384 122.8 39.6 22.7
A. U. Tomatic (C) Copyright 2023 MPC M.P.E.C. 2023-M173
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