MPEC 2018-X89 : 2018 XL2
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M.P.E.C. 2018-X89 Issued 2018 Dec. 12, 15:30 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 XL2
Observations:
K18X02L* C2018 12 10.08719 02 16 11.86 +31 15 30.3 21.2 GVEX089G96
K18X02L C2018 12 10.09278 02 16 11.62 +31 16 31.2 20.4 GVEX089G96
K18X02L C2018 12 10.09836 02 16 11.31 +31 17 32.3 21.0 GVEX089G96
K18X02L C2018 12 10.10394 02 16 11.03 +31 18 33.1 20.5 GVEX089G96
K18X02L C2018 12 10.20857302 16 04.99 +31 37 17.0 21.1 GVEX089H01
K18X02L C2018 12 10.21528302 16 04.63 +31 38 28.4 20.8 GVEX089H01
K18X02L C2018 12 10.22258402 16 04.23 +31 39 46.0 21.1 GVEX089H01
K18X02L C2018 12 10.23176802 16 03.74 +31 41 23.4 20.2 GVEX089H01
K18X02L C2018 12 10.32064 02 15 59.70 +31 57 01.5 20.4 GVEX089I52
K18X02L C2018 12 10.32188 02 15 59.52 +31 57 14.8 21.1 GVEX089I52
K18X02L C2018 12 10.32313 02 15 59.53 +31 57 27.3 20.4 GVEX089I52
K18X02L C2018 12 10.32438 02 15 59.50 +31 57 40.8 21.2 GVEX089I52
K18X02L KC2018 12 10.73530802 15 57.76 +33 09 12.5 21.5 GVEX089L01
K18X02L KC2018 12 10.73629702 15 57.71 +33 09 23.1 21.2 GVEX089L01
K18X02L KC2018 12 10.73768202 15 57.67 +33 09 37.3 21.1 GVEX089L01
K18X02L pC2018 12 10.73886602 15 57.71 +33 09 49.7 21.3 GVEX089L01
K18X02L pC2018 12 10.74005202 15 57.67 +33 10 02.0 21.5 GVEX089L01
K18X02L KC2018 12 10.95265 02 15 48.65 +33 46 20.0 21.4 GVEX089204
K18X02L HC2018 12 10.97282 02 15 47.85 +33 49 42.3 VEX089204
K18X02L KC2018 12 11.05218502 15 51.39 +34 03 20.7 20.9 VuEX089H21
K18X02L KC2018 12 11.06090202 15 51.03 +34 04 49.8 21.2 VuEX089H21
K18X02L KC2018 12 11.07678102 15 50.30 +34 07 30.8 21.1 VuEX089H21
K18X02L C2018 12 12.07096 02 15 39.14 +36 49 03.6 21.3 GVEX089I52
K18X02L C2018 12 12.07550 02 15 39.01 +36 49 46.5 20.4 GVEX089I52
K18X02L C2018 12 12.07883 02 15 38.88 +36 50 18.3 20.8 GVEX089I52
K18X02L C2018 12 12.08216 02 15 38.75 +36 50 50.5 21.0 GVEX089I52
Observer details:
204 Schiaparelli Observatory. Observer L. Buzzi. 0.84-m f/3.5 reflector +
CCD.
G96 Mt. Lemmon Survey. Observer D. C. Fuls. 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.
H21 Astronomical Research Observatory, Westfield. Observer R. Holmes.
Measurers S. Foglia, L. Buzzi, T. Linder, R. Holmes. 0.76-m f/3.0
astrograph + CCD.
I52 Steward Observatory, Mt. Lemmon Station. Observer 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. 1.0-m reflector + CCD.
L01 Visnjan Observatory, Tican. Observer K. Korlevic. 1.0-m f/2.9 reflector
+ CCD.
Orbital elements:
2018 XL2 Earth MOID = 0.0789 AU
Epoch 2019 Apr. 27.0 TT = JDT 2458600.5 MPC
M 76.88177 (2000.0) P Q
n 0.49082821 Peri. 345.74015 +0.55649451 -0.77192713
a 1.5916578 Node 69.56118 +0.79081320 +0.37867579
e 0.3351962 Incl. 19.14509 +0.25481042 +0.51062036
P 2.01 H 24.3 G 0.15 U 7
Residuals in seconds of arc
181210 G96 0.4- 0.2- 181210 I52 1.0- 0.2+ 181210 204 0.2+ 0.1+
181210 G96 0.2+ 0.2- 181210 I52 0.2- 0.3- 181211 H21 0.5- 0.1-
181210 G96 0.1- 0.2+ 181210 I52 0.1+ 0.1+ 181211 H21 0.1- 0.3+
181210 G96 0.0 0.3+ 181210 L01 0.2- 0.2- 181211 H21 0.2- 0.0
181210 H01 0.0 0.0 181210 L01 0.4- 0.0 181212 I52 0.3- 0.2+
181210 H01 0.0 0.0 181210 L01 0.1- 0.2- 181212 I52 0.1+ 0.2-
181210 H01 0.1- 0.0 181210 L01 1.0+ 0.2- 181212 I52 0.0 0.2-
181210 H01 0.1- 0.0 181210 L01 1.1+ 0.2- 181212 I52 0.1- 0.2+
181210 I52 0.6+ 0.1- 181210 204 0.6+ 0.4+
Ephemeris:
2018 XL2 a,e,i = 1.59, 0.34, 19 q = 1.0581
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2018 11 12 02 52 11.9 -50 01 36 0.1616 1.0620 112.3 59.6 22.6
...
2018 11 27 02 28 42.7 -17 19 48 0.1006 1.0595 134.3 41.8 21.1
...
2018 12 05 02 19 25.8 +13 40 49 0.09726 1.0663 144.6 32.4 20.7
...
2018 12 11 02 15 50.4 +33 54 34 0.1139 1.0749 140.4 35.7 21.2
2018 12 12 02 15 36.6 +36 37 49 0.1179 1.0767 139.2 36.7 21.3
2018 12 13 02 15 29.8 +39 09 50 0.1222 1.0785 138.0 37.6 21.4
...
2018 12 19 02 17 26.9 +50 57 04 0.1523 1.0909 131.6 42.4 22.1
...
2018 12 27 02 27 43.7 +60 17 24 0.1996 1.1116 125.6 46.0 22.8
...
2019 01 11 03 12 30.9 +68 10 52 0.2978 1.1611 119.9 47.2 23.8
A. U. Tomatic (C) Copyright 2018 MPC M.P.E.C. 2018-X89
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