MPEC 2018-X123: 2018 XF4
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M.P.E.C. 2018-X123 Issued 2018 Dec. 15, 04:14 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 XF4
Observations:
K18X04F C2018 12 13.24948306 01 34.14 +09 27 12.0 18.12gUEX123I41
K18X04F C2018 12 13.24983006 01 33.82 +09 27 43.4 18.12gUEX123I41
K18X04F C2018 12 13.41387 05 59 22.29 +13 31 39.2 VEX123G96
K18X04F C2018 12 13.41910 05 59 18.23 +13 39 22.7 VEX123G96
K18X04F C2018 12 13.42954 05 59 10.11 +13 54 46.4 VEX123G96
K18X04F* C2018 12 13.45420 05 58 51.09 +14 31 06.6 16.8 GVEX123G96
K18X04F C2018 12 13.45430 05 58 51.04 +14 31 14.7 16.7 GVEX123G96
K18X04F C2018 12 13.45439 05 58 50.96 +14 31 22.8 VEX123G96
K18X04F C2018 12 13.48347 05 58 29.06 +15 14 07.5 17.3 GVEX123I52
K18X04F C2018 12 13.48360 05 58 28.96 +15 14 18.4 VEX123I52
K18X04F C2018 12 13.48373 05 58 28.86 +15 14 29.7 17.3 GVEX123I52
K18X04F C2018 12 13.48386 05 58 28.79 +15 14 41.2 17.2 GVEX123I52
K18X04F C2018 12 13.50101 05 58 16.17 +15 39 48.9 16.7 GVEX123I52
K18X04F C2018 12 13.50114 05 58 16.00 +15 39 59.5 VEX123I52
K18X04F C2018 12 13.50127 05 58 15.95 +15 40 11.8 VEX123I52
K18X04F C2018 12 13.52145 05 58 01.44 +16 09 41.7 17.0 GVEX123I52
K18X04F C2018 12 13.52158 05 58 01.34 +16 09 53.0 17.2 GVEX123I52
K18X04F C2018 12 13.52171 05 58 01.28 +16 10 04.5 17.3 GVEX123I52
K18X04F C2018 12 13.52183 05 58 01.12 +16 10 15.7 16.7 GVEX123I52
K18X04F KC2018 12 13.80496405 55 36.91 +22 57 21.3 17.8 GVEX123J95
K18X04F KC2018 12 13.80835605 55 34.53 +23 02 10.9 17.2 GVEX123J95
K18X04F KC2018 12 13.81108605 55 32.60 +23 06 04.1 16.8 GVEX123J95
K18X04F KC2018 12 13.81443605 55 30.23 +23 10 50.6 17.2 GVEX123J95
K18X04F KC2018 12 13.89870305 54 27.07 +25 09 39.0 17.0 GVEX123J95
K18X04F KC2018 12 13.90335005 54 23.44 +25 16 08.1 17.2 GVEX123J95
K18X04F KC2018 12 13.90754405 54 20.15 +25 21 58.9 17.4 GVEX123J95
K18X04F KC2018 12 13.92068905 54 09.55 +25 40 15.7 17.2 GVEX123Z80
K18X04F KC2018 12 13.92321805 54 07.44 +25 43 47.4 17.6 GVEX123Z80
K18X04F KC2018 12 13.92624705 54 05.01 +25 47 57.9 17.4 GVEX123Z80
K18X04F KC2018 12 13.93366205 53 59.07 +25 58 15.9 17.6 GVEX123Z80
K18X04F C2018 12 14.29224605 49 39.56 +33 51 58.3 17.69gUEX123I41
K18X04F C2018 12 14.29259305 49 39.28 +33 52 25.3 17.69gUEX123I41
K18X04F C2018 12 14.32490305 49 09.78 +34 32 35.1 17.09RUEX123I41
K18X04F C2018 12 14.32525005 49 09.43 +34 33 01.2 17.09RUEX123I41
K18X04F mC2018 12 14.34988 05 48 41.19 +35 03 10.0 17.4 qEX123H15
K18X04F mC2018 12 14.35363 05 48 37.80 +35 07 44.0 17.7 qEX123H15
K18X04F mC2018 12 14.35739 05 48 34.45 +35 12 17.2 17.3 qEX123H15
K18X04F mC2018 12 14.36114 05 48 30.98 +35 16 50.3 17.6 qEX123H15
K18X04F C2018 12 14.42031 05 47 39.27 +36 27 47.3 17.6 GVEX123I52
K18X04F C2018 12 14.42072 05 47 38.89 +36 28 16.5 17.6 GVEX123I52
K18X04F C2018 12 14.42113 05 47 38.53 +36 28 45.3 17.9 GVEX123I52
K18X04F C2018 12 14.42154 05 47 38.17 +36 29 15.2 17.6 GVEX123I52
K18X04F C2018 12 14.49304105 46 51.03 +37 55 25.3 17.18oVEX123T08
K18X04F C2018 12 14.50607705 46 38.54 +38 10 26.3 16.85oVEX123T08
K18X04F C2018 12 14.51286105 46 32.07 +38 18 13.0 17.28oVEX123T08
K18X04F C2018 12 14.53223 05 46 48.37 +38 38 24.2 18.2 RrEX123P93
K18X04F C2018 12 14.53685 05 46 44.14 +38 43 46.0 17.9 RrEX123P93
K18X04F C2018 12 14.53778 05 46 43.36 +38 44 50.1 17.9 RrEX123P93
K18X04F KC2018 12 14.83412 05 42 53.09 +44 03 31.4 17.2 VqEX123C77
K18X04F KC2018 12 14.83650 05 42 50.93 +44 05 59.9 17.4 VqEX123C77
K18X04F KC2018 12 14.83963 05 42 48.12 +44 09 13.4 17.9 VqEX123C77
K18X04F KC2018 12 14.85189 05 42 36.19 +44 22 00.5 17.8 RqEX123160
K18X04F KC2018 12 14.85332 05 42 34.82 +44 23 27.6 16.5 RqEX123160
K18X04F KC2018 12 14.85490 05 42 33.32 +44 25 03.7 18.3 RqEX123160
K18X04F KC2018 12 14.85650 05 42 31.89 +44 26 44.1 17.9 RqEX123160
K18X04F KC2018 12 14.85808 05 42 30.46 +44 28 20.3 17.0 RqEX123160
K18X04F KC2018 12 14.90684 05 41 44.23 +45 17 33.3 18.9 VEX123104
K18X04F KC2018 12 14.91052 05 41 40.58 +45 21 13.8 18.9 VEX123104
K18X04F KC2018 12 14.91421 05 41 37.03 +45 24 53.4 18.9 VEX123104
K18X04F KC2018 12 14.95610 05 40 56.77 +46 05 51.4 18.0 GVEX123203
K18X04F KC2018 12 14.97623 05 40 36.92 +46 25 18.3 VEX123203
K18X04F KC2018 12 14.98662 05 40 26.79 +46 35 12.6 VEX123204
K18X04F KC2018 12 14.98844 05 40 24.99 +46 36 56.8 VEX123204
K18X04F KC2018 12 14.99025 05 40 23.19 +46 38 40.7 17.7 GVEX123204
K18X04F KC2018 12 14.99219 05 40 21.28 +46 40 31.9 VEX123204
K18X04F KC2018 12 14.99341 05 40 20.00 +46 41 43.0 17.6 GVEX123203
K18X04F KC2018 12 14.99414 05 40 19.36 +46 42 22.7 VEX123204
K18X04F KC2018 12 15.00460705 40 10.30 +46 52 31.7 17.7 GVEX123C95
K18X04F KC2018 12 15.01028005 40 04.59 +46 57 53.5 18.2 GVEX123C95
K18X04F KC2018 12 15.01034 05 40 02.44 +46 57 52.5 17.3 RVEX123K63
K18X04F KC2018 12 15.01295 05 40 00.02 +47 00 21.8 17.6 RVEX123K63
K18X04F KC2018 12 15.01442 05 39 58.35 +47 01 44.3 17.1 RVEX123K63
K18X04F KC2018 12 15.01595105 39 58.99 +47 03 15.0 18.2 GVEX123C95
K18X04F KC2018 12 15.01913 05 39 53.80 +47 06 08.5 17.7 RVEX123K63
K18X04F KC2018 12 15.06084 05 39 11.82 +47 44 31.3 17.5 GVEX123595
K18X04F KC2018 12 15.06310 05 39 09.65 +47 46 35.4 17.7 GVEX123595
K18X04F KC2018 12 15.06335705 39 09.17 +47 46 51.9 17.9 GVEX123L01
K18X04F KC2018 12 15.06413805 39 08.40 +47 47 34.5 17.8 GVEX123L01
K18X04F KC2018 12 15.06506005 39 07.54 +47 48 25.3 18.0 GVEX123L01
K18X04F KC2018 12 15.06536 05 39 07.42 +47 48 38.9 17.7 GVEX123595
K18X04F KC2018 12 15.06583805 39 06.75 +47 49 07.8 17.9 GVEX123L01
K18X04F IC2018 12 15.06676205 39 05.87 +47 49 58.0 18.0 GVEX123L01
K18X04F KC2018 12 15.06762 05 39 05.22 +47 50 42.5 17.7 GVEX123595
Observer details:
104 San Marcello Pistoiese. Observers P. Bacci, M. Maestripieri. Measurers
P. Bacci, L. Tesi, G. Fagioli. 0.60-m reflector + CCD.
160 Castelmartini. Observers M. Jaeger, E. Prosperi, S. Prosperi,
W. Vollmann. Measurer E. Prosperi. 0.35-m f/10 Schmidt-Cassegrain + CCD.
203 GiaGa Observatory. Observers S. Foglia, G. Galli. Measurer G. Galli.
0.36-m f/7.50 Schmidt-Cassegrain + CCD.
204 Schiaparelli Observatory. Observer L. Buzzi. 0.60-m f/4.64 reflector +
CCD.
595 Farra dIsonzo. Observer E. Pettarin. 0.61-m f/4.5 reflector + CCD.
C77 Bernezzo Observatory. Observer A. Mantero. 0.25-m f/1000.0 reflector +
CCD.
C95 SATINO Remote Observatory, Haute Provence. Observer J. Jahn. 0.60-m
f/3.2 Newtonian reflector + CCD.
G96 Mt. Lemmon Survey. Observer A. R. Gibbs. Measurers B. M. Africano,
E. J. Christensen, G. A. Farneth, D. C. Fuls, A. R. Gibbs, A. D. Grauer,
H. Groeller, R. A. Kowalski, S. M. Larson, G. J. Leonard, R. L. Seaman,
F. C. Shelly. 1.5-m reflector + 10K CCD.
H15 ISON-NM Observatory, Mayhill. Observer L. Elenin. 0.4-m f/3 reflector +
CCD.
I41 Palomar Mountain--ZTF. Observer A. U. Tomatic. Measurers H.-W. Lin,
F. J. Masci, Q.-Z. Ye. 1.2-m f/2.4 Schmidt.
I52 Steward Observatory, Mt. Lemmon Station. Observer H. Groeller.
Measurers B. M. Africano, E. J. Christensen, G. A. Farneth, D. C. Fuls,
A. R. Gibbs, A. D. Grauer, H. Groeller, R. A. Kowalski, S. M. Larson,
G. J. Leonard, R. L. Seaman, F. C. Shelly. 1.0-m reflector + CCD.
J95 Great Shefford. Observer P. Birtwhistle. 0.41-m f/6.3
Schmidt-Cassegrain + CCD.
K63 G. Pascoli Observatory, Castelvecchio Pascoli. Observer R. Bacci.
0.41-m f/3.2 Newtonian reflector + CCD.
L01 Visnjan Observatory, Tican. Observer K. Korlevic. 1.0-m f/2.9 reflector
+ CCD.
P93 Space Tracking and Communications Center, JAXA. Observers S. Okumura,
T. Fujiwara. 1.0-m f/3.0 reflector + CCD.
T08 ATLAS-MLO, Mauna Loa. Observers L. Denneau, J. Tonry, A. Heinze,
H. Weiland. Measurers L. Denneau, J. Tonry, A. Heinze, H. Weiland,
B. Stalder. 0.5-m reflector + CCD.
Z80 Northolt Branch Observatory. Observer G. Wells. Measurer D. Bamberger.
0.25-m f/8.0 Ritchey-Chretien + CCD.
Orbital elements:
2018 XF4 Earth MOID = 0.0195 AU
Epoch 2019 Apr. 27.0 TT = JDT 2458600.5 MPC
M 112.87174 (2000.0) P Q
n 0.69142049 Peri. 327.64927 +0.59921643 -0.67428532
a 1.2666051 Node 81.63952 +0.79546120 +0.44054427
e 0.2301542 Incl. 25.86399 +0.09044965 +0.59267195
P 1.43 H 25.1 G 0.15 U 6
Residuals in seconds of arc
181213 I41 1.0+ 0.2+ 181213 Z80 (0.7+ 1.5-) 181214 104 0.8+ 0.2-
181213 I41 0.2+ 0.5+ 181213 Z80 0.9+ 0.2+ 181214 104 0.3- 0.4+
181213 G96 0.5- 1.5+ 181214 I41 0.3- 0.0 181214 104 0.1- 0.1-
181213 G96 0.0 1.3+ 181214 I41 0.1+ 1.0+ 181214 203 0.1+ 0.3+
181213 G96 0.2+ 0.2+ 181214 I41 0.6+ 0.6+ 181214 203 0.4- 0.6+
181213 G96 0.2- 0.1- 181214 I41 0.2+ 1.0+ 181214 204 0.1- 0.2-
181213 G96 0.2+ 0.8- 181214 H15 0.5- 0.7- 181214 204 0.1- 0.2-
181213 G96 0.0 0.7- 181214 H15 0.1+ 0.3- 181214 204 0.3- 0.1+
181213 I52 0.0 0.3+ 181214 H15 1.3+ 1.0- 181214 204 0.2- 0.4+
181213 I52 0.0 0.2- 181214 H15 0.9+ 0.5- 181214 203 0.1+ 0.2-
181213 I52 0.1- 0.4- 181214 I52 0.2- 0.2- 181214 204 0.1- 0.1-
181213 I52 0.3+ 0.3- 181214 I52 0.3- 0.1- 181215 C95 0.5+ 0.2-
181213 I52 0.3+ 0.4- 181214 I52 0.2- 0.3- 181215 C95 0.2- 0.0
181213 I52 0.8- 1.2- 181214 I52 0.1- 0.6+ 181215 K63 0.4- 0.7-
181213 I52 0.1- 0.3- 181214 T08 0.2+ 0.4- 181215 K63 1.3+ 1.2+
181213 I52 0.2+ 0.5- 181214 T08 0.2- 0.2+ 181215 K63 0.8- 0.8+
181213 I52 0.1+ 0.6- 181214 T08 0.2- 0.7+ 181215 C95 0.3+ 0.9+
181213 I52 0.5+ 0.5- 181214 P93 0.4+ 0.5- 181215 K63 0.4+ 0.2-
181213 I52 0.5- 0.2+ 181214 P93 0.0 0.2+ 181215 595 0.5- 0.3+
181213 J95 0.4- 0.2+ 181214 P93 0.8+ 0.3- 181215 595 0.2- 0.4+
181213 J95 0.2- 0.1- 181214 C77 0.2- 0.2+ 181215 L01 0.1- 0.3-
181213 J95 0.1- 0.1- 181214 C77 0.4- 1.0+ 181215 L01 0.2- 0.5-
181213 J95 0.1+ 0.4+ 181214 C77 0.2- 0.5+ 181215 L01 0.2+ 0.2-
181213 J95 0.2- 0.0 181214 160 0.6+ 0.5- 181215 595 0.5- 0.0
181213 J95 0.1- 0.0 181214 160 0.1+ 1.4- 181215 L01 0.2- 0.3-
181213 J95 0.1+ 0.0 181214 160 (0.3- 2.4-) 181215 L01 0.0 0.7-
181213 Z80 (2.0+ 1.1-) 181214 160 0.2+ 0.2- 181215 595 0.6- 0.1-
181213 Z80 0.8+ 0.0 181214 160 0.6+ 1.0-
Ephemeris:
2018 XF4 a,e,i = 1.27, 0.23, 26 q = 0.9751
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2018 11 15 07 27 25.5 -73 52 22 0.2295 0.9748 79.7 86.9 24.9
...
2018 11 30 07 04 47.4 -68 38 53 0.1128 0.9832 85.1 88.3 23.4
...
2018 12 08 06 39 00.6 -55 22 36 0.04866 0.9939 99.0 78.2 21.3
...
2018 12 14 05 53 02.9 +27 31 01 0.02037 1.0046 172.1 7.8 17.2
2018 12 15 05 40 17.2 +46 47 05 0.02426 1.0065 156.3 23.1 18.1
2018 12 16 05 25 09.1 +59 35 27 0.03009 1.0086 143.7 35.3 19.0
...
2018 12 22 02 41 57.8 +82 29 17 0.07619 1.0219 118.2 58.0 21.6
...
2018 12 30 23 07 18.0 +84 00 02 0.1419 1.0423 110.9 61.8 23.2
...
2019 01 14 22 08 22.2 +83 49 31 0.2623 1.0873 106.5 60.2 24.5
A. U. Tomatic (C) Copyright 2018 MPC M.P.E.C. 2018-X123
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