MPEC 2018-Y84 : 2018 XB20
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Read MPEC 2018-Y83
Read MPEC 2018-Y85
M.P.E.C. 2018-Y84 Issued 2018 Dec. 28, 03:55 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 XB20
Observations:
K18X20B C2018 11 06.57795404 10 55.974+12 03 53.22 VEY084F52
K18X20B C2018 11 06.59217604 10 55.140+12 03 40.86 22.1 GVEY084F52
K18X20B C2018 11 06.60643304 10 54.267+12 03 27.73 21.9 GVEY084F52
K18X20B C2018 11 13.38293904 03 14.882+10 14 41.11 21.7 GVEY084F52
K18X20B C2018 11 13.39660104 03 13.699+10 14 26.95 21.5 GVEY084F52
K18X20B C2018 11 13.41032904 03 12.523+10 14 12.49 22.2 GVEY084F52
K18X20B C2018 11 13.42405704 03 11.349+10 13 58.47 21.4 GVEY084F52
K18X20B* C2018 12 14.24660 02 59 39.03 -01 06 20.8 21.3 GVEY084G96
K18X20B C2018 12 14.25245 02 59 38.19 -01 06 29.1 20.7 GVEY084G96
K18X20B C2018 12 14.25823 02 59 37.26 -01 06 37.2 21.7 GVEY084G96
K18X20B C2018 12 14.26402 02 59 36.45 -01 06 44.6 22.1 GVEY084G96
K18X20B C2018 12 14.33028 02 59 26.33 -01 08 17.3 20.9 GVEY084V06
K18X20B C2018 12 14.33463602 59 25.65 -01 08 24.2 21.0 GVEY084H01
K18X20B C2018 12 14.33522 02 59 25.61 -01 08 24.1 21.1 GVEY084V06
K18X20B C2018 12 14.33906802 59 24.97 -01 08 30.4 21.0 GVEY084H01
K18X20B C2018 12 14.34016 02 59 24.85 -01 08 31.1 20.9 GVEY084V06
K18X20B C2018 12 14.34497 02 59 24.14 -01 08 38.2 21.5 GVEY084G96
K18X20B C2018 12 14.34509 02 59 24.10 -01 08 38.3 20.9 GVEY084V06
K18X20B C2018 12 14.34573 02 59 24.01 -01 08 38.5 21.9 GVEY084G96
K18X20B C2018 12 14.34648 02 59 23.93 -01 08 40.5 21.9 GVEY084G96
K18X20B C2018 12 14.34960602 59 23.41 -01 08 45.1 20.9 GVEY084H01
K18X20B C2018 12 14.35753802 59 22.24 -01 08 56.1 20.9 GVEY084H01
K18X20B C2018 12 15.20865 02 57 20.14 -01 28 43.3 21.5 GVEY084G96
K18X20B C2018 12 15.21215 02 57 19.58 -01 28 48.6 21.5 GVEY084G96
K18X20B C2018 12 15.21562 02 57 19.06 -01 28 53.1 21.4 GVEY084G96
K18X20B C2018 12 15.22054 02 57 18.29 -01 28 59.7 21.0 GVEY084G96
K18X20B |C2018 12 27.11469 02 30 08.14 -05 46 09.2 21.5 VuEY084807
K18X20B |C2018 12 27.12021 02 30 07.39 -05 46 16.0 21.4 VuEY084807
K18X20B |C2018 12 27.12585 02 30 06.63 -05 46 22.7 21.4 VuEY084807
Observer details:
807 Cerro Tololo Observatory, La Serena. Observers T. Linder, R. Holmes.
0.61-m f/6.5 astrograph + CCD.
F52 Pan-STARRS 2, Haleakala. Observers J. Bulger, K. Chambers, T. Dukes,
T. Lowe, E. Magnier, A. Schultz, M. Willman. Measurers S. Chastel,
M. Huber, Y. Ramanjooloo, R. Wainscoat, R. Weryk. 1.8-m Ritchey-Chretien
+ CCD.
G96 Mt. Lemmon Survey. Observers A. R. Gibbs, G. J. Leonard. 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.
H01 Magdalena Ridge Observatory, Socorro. Observers W. H. Ryan, E. V. Ryan.
Measurer W. H. Ryan. 2.4-m f/8.9 Ritchey-Chretien + CCD.
V06 Catalina Sky Survey-Kuiper. 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. 1.55-m reflector + CCD.
Orbital elements:
2018 XB20 Earth MOID = 0.0519 AU
Epoch 2019 Apr. 27.0 TT = JDT 2458600.5 MPC
M 20.44418 (2000.0) P Q
n 0.35282734 Peri. 325.89305 -0.95388612 -0.29846820
a 1.9834803 Node 196.82896 +0.29408127 -0.90794839
e 0.5951142 Incl. 6.32715 +0.06014545 -0.29418779
P 2.79 H 21.6 G 0.15 U 5
Residuals in seconds of arc
181106 F52 0.1- 0.1- 181214 G96 1.0+ 0.2+ 181214 H01 0.1- 0.0
181106 F52 0.2+ 0.2+ 181214 V06 0.2- 0.2+ 181214 H01 0.1+ 0.0
181106 F52 0.1- 0.3- 181214 H01 0.1- 0.1- 181215 G96 0.1+ 0.3+
181113 F52 0.2+ 0.0 181214 V06 0.1+ 0.3+ 181215 G96 0.3- 0.1-
181113 F52 0.1- 0.1+ 181214 H01 0.3- 0.1- 181215 G96 0.1- 0.2+
181113 F52 0.1- 0.1- 181214 V06 0.1- 0.2+ 181215 G96 0.5- 0.4+
181113 F52 0.0 0.2+ 181214 G96 0.0 0.1- 181227 807 0.1+ 0.1+
181214 G96 0.2- 0.4- 181214 V06 0.3- 0.1- 181227 807 0.1+ 0.2-
181214 G96 0.6+ 0.5- 181214 G96 0.2- 0.6+ 181227 807 0.1+ 0.1-
181214 G96 0.1- 0.5- 181214 G96 0.3+ 0.3-
Ephemeris:
2018 XB20 a,e,i = 1.98, 0.60, 6 q = 0.8031
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2018 11 28 03 37 42.2 +05 18 21 0.4736 1.4442 161.8 12.3 21.5
...
2018 12 13 03 02 40.6 -00 36 52 0.3954 1.3095 139.2 29.4 21.5
...
2018 12 21 02 43 41.1 -03 38 47 0.3681 1.2372 126.2 39.9 21.5
...
2018 12 27 02 30 23.6 -05 44 01 0.3513 1.1832 116.6 48.0 21.5
2018 12 28 02 28 16.8 -06 03 53 0.3486 1.1743 115.0 49.3 21.5
2018 12 29 02 26 12.0 -06 23 27 0.3460 1.1653 113.5 50.7 21.5
...
2019 01 04 02 14 21.5 -08 15 28 0.3307 1.1123 104.3 58.9 21.5
...
2019 01 12 01 59 53.0 -10 36 04 0.3093 1.0437 92.5 70.3 21.6
...
2019 01 27 01 29 26.7 -15 31 00 0.2599 0.9276 69.8 94.9 21.9
A. U. Tomatic (C) Copyright 2018 MPC M.P.E.C. 2018-Y84
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