MPEC 2018-C49 : 2018 BJ7
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M.P.E.C. 2018-C49 Issued 2018 Feb. 10, 18:17 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 BJ7
Observations:
K18B07J* C2018 01 16.35303 08 50 07.495+16 48 37.37 22.3 wUEC049F51
K18B07J C2018 01 16.36465 08 50 08.416+16 48 40.33 22.6 wUEC049F51
K18B07J C2018 01 16.37628 08 50 09.345+16 48 43.19 22.9 wUEC049F51
K18B07J C2018 01 16.38796 08 50 10.175+16 48 46.02 23.6 wUEC049F51
K18B07J _C2018 01 17.43513008 51 45.489+16 52 37.93 22.2 GUEC049568
K18B07J _C2018 01 17.43630608 51 45.587+16 52 38.27 22.2 GUEC049568
K18B07J _C2018 01 17.43748008 51 45.681+16 52 38.52 22.1 GUEC049568
K18B07J C2018 02 08.32283 10 14 03.57 +20 11 44.6 19.4 GUEC049703
K18B07J C2018 02 08.32809 10 14 06.15 +20 11 49.0 19.8 GUEC049703
K18B07J C2018 02 08.33864 10 14 11.49 +20 11 57.0 19.6 GUEC049703
K18B07J C2018 02 08.86177 10 18 58.58 +20 19 01.7 20.3 VqEC049C42
K18B07J C2018 02 08.86256 10 18 58.94 +20 19 01.9 19.7 VqEC049C42
K18B07J C2018 02 08.86332 10 18 59.41 +20 19 02.9 20.1 VqEC049C42
K18B07J C2018 02 08.86410 10 18 59.77 +20 19 03.4 19.9 VqEC049C42
K18B07J KC2018 02 09.35179 10 23 46.78 +20 26 08.8 oEC049711
K18B07J KC2018 02 09.35445 10 23 48.31 +20 26 11.1 oEC049711
K18B07J KC2018 02 09.35710 10 23 49.79 +20 26 13.2 oEC049711
K18B07J C2018 02 09.36427 10 23 54.64 +20 26 16.8 20.1 VoEC049691
K18B07J C2018 02 09.36754 10 23 56.50 +20 26 18.6 19.8 VoEC049691
K18B07J C2018 02 09.37190 10 23 58.99 +20 26 23.2 20.0 VoEC049691
K18B07J C2018 02 09.42516 10 24 29.46 +20 27 03.2 19.4 GUEC049I52
K18B07J C2018 02 09.42557 10 24 29.68 +20 27 03.6 19.5 GUEC049I52
K18B07J C2018 02 09.42599 10 24 29.93 +20 27 03.8 19.5 GUEC049I52
K18B07J KC2018 02 09.97160510 30 16.28 +20 34 02.6 19.5 VSEC049L01
K18B07J KC2018 02 09.97303610 30 17.20 +20 34 03.8 19.5 VSEC049L01
K18B07J KC2018 02 09.97445610 30 18.07 +20 34 04.8 19.5 VSEC049L01
K18B07J KC2018 02 09.97589910 30 18.96 +20 34 06.1 19.6 VSEC049L01
K18B07J KC2018 02 10.07667 10 31 23.08 +20 35 15.6 UEC049J95
K18B07J KC2018 02 10.08074 10 31 25.65 +20 35 18.7 UEC049J95
K18B07J KC2018 02 10.08479 10 31 28.21 +20 35 21.3 19.6 GUEC049J95
K18B07J KC2018 02 10.09354 10 31 32.62 +20 35 36.7 19.7 UEC049104
K18B07J KC2018 02 10.09945 10 31 36.34 +20 35 41.4 19.8 UEC049104
K18B07J KC2018 02 10.10525 10 31 40.01 +20 35 45.8 19.7 UEC049104
K18B07J KC2018 02 10.34514 10 34 23.54 +20 39 11.5 oEC049691
K18B07J KC2018 02 10.34841 10 34 25.63 +20 39 14.2 oEC049691
K18B07J KC2018 02 10.35169 10 34 27.72 +20 39 16.6 oEC049691
K18B07J C2018 02 10.50267 10 36 06.13 +20 40 59.2 18.7 GUEC049I52
K18B07J C2018 02 10.50498 10 36 07.71 +20 40 58.4 19.1 GUEC049I52
K18B07J C2018 02 10.50540 10 36 07.95 +20 40 58.8 18.9 GUEC049I52
K18B07J C2018 02 10.50582 10 36 08.27 +20 40 58.8 18.9 GUEC049I52
Observer details:
104 San Marcello Pistoiese. Observers P. Bacci, M. Maestripieri. Measurers
P. Bacci, L. Tesi, G. Fagioli. 0.60-m reflector + CCD.
568 Mauna Kea. Observers R. J. Wainscoat, L. Wells. Measurers M. Micheli,
R. J. Wainscoat. 3.6-m Canada-France-Hawaii Telescope + CCD.
691 Steward Observatory, Kitt Peak. Observer M. T. Read. 0.9-m f/3 reflector
+ CCD.
703 Catalina Sky Survey. Observer G. J. Leonard. 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.
0.68-m Schmidt + 10K CCD.
711 McDonald Observatory. Observer J. G. Ries. 2.1-m reflector + CCD + focal
reducer.
C42 Xingming Observatory, Mt. Nanshan. Observers Z. Xu, X. Gao. Measurer
Z. Xu. 0.6-m f/8 Ritchey-Chretien + 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.
I52 Steward Observatory, Mt. Lemmon Station. Observers G. J. Leonard,
J. A. Johnson. 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. 1.0-m reflector + CCD.
J95 Great Shefford. Observer P. Birtwhistle. 0.40-m f/6.0 Schmidt-Cassegrain
+ CCD.
L01 Visnjan Observatory, Tican. Observer K. Korlevic. 1.0-m f/2.9 reflector
+ CCD.
Orbital elements:
2018 BJ7 Earth MOID = 0.0300 AU
Epoch 2018 Mar. 23.0 TT = JDT 2458200.5 MPC
M 1.48935 (2000.0) P Q
n 0.23603612 Peri. 61.59474 -0.99601543 +0.07970906
a 2.5930869 Node 122.95103 -0.08889348 -0.92334537
e 0.6275242 Incl. 2.73198 +0.00715624 -0.37560590
P 4.18 H 24.1 G 0.15 U 7
Residuals in seconds of arc
180116 F51 0.3+ 0.1- 180209 711 0.5- 0.3+ 180210 J95 0.2- 0.0
180116 F51 0.2+ 0.0 180209 711 0.2- 0.5+ 180210 J95 0.1- 0.4-
180116 F51 0.3+ 0.0 180209 711 0.6- 0.5+ 180210 104 0.3+ 0.6-
180116 F51 1.0- 0.0 180209 691 0.2- 0.0 180210 104 0.2+ 0.1-
180117 568 0.2+ 0.2+ 180209 691 0.2- 0.8- 180210 104 0.3+ 0.3+
180117 568 0.3+ 0.2+ 180209 691 0.1- 0.2+ 180210 691 0.3+ 0.1+
180117 568 0.3+ 0.2+ 180209 I52 0.3+ 0.0 180210 691 0.2+ 0.2+
180208 703 0.7+ 0.4+ 180209 I52 0.1+ 0.1+ 180210 691 0.0 0.1+
180208 703 0.2- 0.2+ 180209 I52 0.2+ 0.0 180210 I52 0.0 1.9+
180208 703 0.2+ 0.9- 180209 L01 0.3- 0.1+ 180210 I52 0.6+ 0.3-
180208 C42 0.8+ 0.1+ 180209 L01 0.2+ 0.2+ 180210 I52 0.0 0.1-
180208 C42 0.1- 0.3- 180209 L01 0.0 0.0 180210 I52 0.5+ 0.4-
180208 C42 0.7+ 0.1+ 180209 L01 0.0 0.1+
180208 C42 0.2- 0.1- 180210 J95 0.3- 0.0
Ephemeris:
2018 BJ7 a,e,i = 2.59, 0.63, 3 q = 0.9659
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2018 01 11 08 42 53.1 +16 34 45 0.3192 1.2904 161.7 13.9 23.0
...
2018 01 26 09 08 51.1 +17 40 38 0.1921 1.1748 171.3 7.3 21.4
...
2018 02 03 09 37 59.9 +18 59 38 0.1349 1.1193 171.9 7.2 20.5
...
2018 02 09 10 20 19.1 +20 21 33 0.09746 1.0817 166.7 12.1 19.9
2018 02 10 10 30 33.0 +20 35 05 0.09183 1.0758 165.1 13.7 19.9
2018 02 11 10 42 04.4 +20 47 23 0.08642 1.0700 163.2 15.4 19.8
...
2018 02 17 12 28 08.7 +20 17 17 0.06102 1.0380 143.8 34.2 19.5
...
2018 02 25 15 51 20.9 +08 09 34 0.06090 1.0033 101.1 75.5 20.7
...
2018 03 12 18 25 55.7 -06 30 11 0.1315 0.9680 75.1 97.4 23.1
A. U. Tomatic (C) Copyright 2018 MPC M.P.E.C. 2018-C49
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