MPEC 2018-B120: 2018 BZ4
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M.P.E.C. 2018-B120 Issued 2018 Jan. 25, 19:14 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
2018 BZ4
Observations:
K18B04Z C2018 01 11.50982 07 51 50.707+16 44 28.17 21.6 wUEB120F51
K18B04Z C2018 01 11.53612 07 51 47.902+16 45 13.20 21.3 wUEB120F51
K18B04Z C2018 01 11.54925 07 51 46.506+16 45 35.21 21.4 wUEB120F51
K18B04Z* C2018 01 20.32372 07 35 45.534+21 11 24.64 21.6 wUEB120F51
K18B04Z C2018 01 20.32908 07 35 44.864+21 11 34.98 21.5 wUEB120F51
K18B04Z C2018 01 20.33666 07 35 43.934+21 11 49.46 21.8 wUEB120F51
K18B04Z C2018 01 20.34200 07 35 43.272+21 11 59.72 21.5 wUEB120F51
K18B04Z C2018 01 20.34952 07 35 42.336+21 12 14.34 21.1 wUEB120F51
K18B04Z C2018 01 20.35489 07 35 41.681+21 12 24.45 21.4 wUEB120F51
K18B04Z C2018 01 20.36779 07 35 40.077+21 12 49.16 21.5 wUEB120F51
K18B04Z C2018 01 23.15381 07 30 13.06 +22 41 14.6 21.0 GUEB120V06
K18B04Z C2018 01 23.15583 07 30 12.79 +22 41 18.6 21.0 GUEB120V06
K18B04Z C2018 01 23.15784 07 30 12.55 +22 41 22.6 21.2 GUEB120V06
K18B04Z C2018 01 23.15986 07 30 12.30 +22 41 26.6 21.4 GUEB120V06
K18B04Z KC2018 01 23.91556 07 28 42.42 +23 05 28.2 21.6 GUEB120587
K18B04Z KC2018 01 23.91836 07 28 42.07 +23 05 34.5 21.4 GUEB120587
K18B04Z KC2018 01 24.00396 07 28 31.42 +23 08 17.7 21.5 GUEB120204
K18B04Z KC2018 01 24.04139 07 28 26.84 +23 09 28.6 UEB120204
K18B04Z C2018 01 24.20445 07 28 08.58 +23 14 44.6 21.5 GUEB120V06
K18B04Z C2018 01 24.20646 07 28 08.32 +23 14 48.8 UEB120V06
K18B04Z C2018 01 24.20848 07 28 08.10 +23 14 52.5 UEB120V06
K18B04Z C2018 01 24.21049 07 28 07.84 +23 14 55.8 21.5 GUEB120V06
K18B04Z C2018 01 25.26686 07 26 02.66 +23 48 34.6 21.8 GUEB120V06
K18B04Z C2018 01 25.26887 07 26 02.42 +23 48 38.4 21.5 GUEB120V06
K18B04Z C2018 01 25.27089 07 26 02.14 +23 48 42.4 21.5 GUEB120V06
K18B04Z C2018 01 25.27290 07 26 01.91 +23 48 45.9 21.3 GUEB120V06
Observer details:
204 Schiaparelli Observatory. Observer L. Buzzi. 0.84-m f/3.5 reflector
+ CCD.
587 Sormano. Observers F. Manca, P. Sicoli, A. Testa. Measurer P. Sicoli.
0.5-m f/6.8 reflector + CCD.
F51 Pan-STARRS 1, Haleakala. Observers J. Bulger, T. Lowe, A. Schultz,
M. Willman. Measurers K. Chambers, S. Chastel, L. Denneau, H. Flewelling,
M. Huber, E. Lilly, E. Magnier, R. Wainscoat, C. Waters, R. Weryk. 1.8-m
Ritchey-Chretien + CCD.
V06 Catalina Sky Survey-Kuiper. Observer D. C. Fuls. Measurers
E. J. Christensen, D. C. Fuls, A. R. Gibbs, A. D. Grauer, J. A. Johnson,
R. A. Kowalski, S. M. Larson, G. J. Leonard, R. G. Matheny, R. L. Seaman,
F. C. Shelly. 1.55-m reflector + CCD.
Orbital elements:
2018 BZ4 Earth MOID = 0.2093 AU
Epoch 2017 Sept. 4.0 TT = JDT 2458000.5 MPC
M 197.04821 (2000.0) P Q
n 0.57788799 Peri. 107.43629 -0.67114304 +0.70175197
a 1.4274917 Node 117.93063 -0.74026536 -0.61715015
e 0.2188347 Incl. 15.69325 -0.03967629 -0.35590710
P 1.71 H 21.7 G 0.15 U 6
Residuals in seconds of arc
180111 F51 0.0 0.3- 180120 F51 0.1- 0.1+ 180124 V06 0.0 0.1-
180111 F51 0.0 0.2+ 180123 V06 0.1+ 0.2- 180124 V06 0.1- 0.2+
180111 F51 0.0 0.1+ 180123 V06 0.2- 0.1- 180124 V06 0.3+ 0.0
180120 F51 0.1+ 0.1- 180123 V06 0.1- 0.0 180124 V06 0.2+ 0.5-
180120 F51 0.0 0.0 180123 V06 0.1- 0.1+ 180125 V06 0.2- 0.1+
180120 F51 0.0 0.1- 180123 587 0.4+ 0.6- 180125 V06 0.0 0.1+
180120 F51 0.0 0.1- 180123 587 0.3+ 0.4+ 180125 V06 0.4- 0.2+
180120 F51 0.1- 0.2+ 180124 204 0.2- 0.2+ 180125 V06 0.1- 0.1-
180120 F51 0.0 0.0 180124 204 0.4+ 0.1+
Ephemeris:
2018 BZ4 a,e,i = 1.43, 0.22, 16 q = 1.1151
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2017 12 26 08 12 09.5 +10 26 00 0.5992 1.5316 149.9 18.8 22.5
...
2018 01 10 07 54 19.1 +16 02 15 0.5096 1.4886 170.7 6.1 21.6
...
2018 01 18 07 40 12.9 +19 58 30 0.4816 1.4645 175.6 2.9 21.2
...
2018 01 24 07 28 32.3 +23 08 16 0.4705 1.4460 166.5 9.1 21.5
2018 01 25 07 26 34.2 +23 40 06 0.4694 1.4429 164.9 10.2 21.5
2018 01 26 07 24 36.4 +24 11 53 0.4686 1.4398 163.4 11.3 21.5
...
2018 02 01 07 13 10.0 +27 18 38 0.4681 1.4210 154.0 17.7 21.7
...
2018 02 09 06 59 56.1 +31 07 24 0.4781 1.3954 142.2 25.7 22.0
...
2018 02 24 06 46 31.8 +36 46 47 0.5194 1.3471 123.4 37.8 22.4
A. U. Tomatic (C) Copyright 2018 MPC M.P.E.C. 2018-B120
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