[Iaude] MPEC X158: 2020 UM8 [a=2.13,e=0.52,i=2.3,H=25.2]
mpec at marsden.cfa.harvard.edu
mpec at marsden.cfa.harvard.edu
Sun Dec 13 23:34:07 EST 2020
M.P.E.C. 2020-X158 Issued 2020 December 14, 04:32 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 at CFA.HARVARD.EDU
URL https://www.minorplanetcenter.net/ ISSN 1523-6714
2020 UM8
Observations:
K20U08M*!C2020 10 18.04098 23 33 35.93 -03 34 28.5 24.7 V EX158W84
K20U08M !C2020 10 18.06858 23 33 34.54 -03 34 57.2 EX158W84
K20U08M !C2020 10 18.15154 23 33 30.33 -03 36 23.2 EX158W84
K20U08M C2020 12 12.22929603 30 43.82 -25 02 31.8 20.95GVEX158G96
K20U08M C2020 12 12.23441503 30 48.88 -25 02 29.5 20.92GVEX158G96
K20U08M C2020 12 12.23953603 30 53.97 -25 02 26.2 21.14GVEX158G96
K20U08M C2020 12 12.24467903 30 59.11 -25 02 23.5 20.14GVEX158G96
K20U08M KC2020 12 12.27130203 31 25.54 -25 02 06.3 20.09GVEX158I52
K20U08M KC2020 12 12.27340303 31 27.73 -25 02 04.1 20.48GVEX158I52
K20U08M KC2020 12 12.62534403 37 35.96 -24 54 20.7 20.0 GVEX158474
K20U08M KC2020 12 12.62716203 37 37.86 -24 54 17.8 VEX158474
K20U08M KC2020 12 12.62898003 37 39.73 -24 54 16.5 20.2 GVEX158474
K20U08M KC2020 12 12.63080003 37 41.61 -24 54 15.7 20.7 GVEX158474
K20U08M |C2020 12 13.06559 03 45 37.27 -24 48 30.2 20.4 VuEX158807
K20U08M |C2020 12 13.06991 03 45 41.62 -24 48 26.1 20.5 VuEX158807
K20U08M |C2020 12 13.07423 03 45 45.99 -24 48 22.1 20.6 VuEX158807
K20U08M KC2020 12 13.50212203 53 19.22 -24 39 16.2 20.3 GVEX158474
K20U08M KC2020 12 13.50335803 53 20.47 -24 39 15.3 20.2 GVEX158474
K20U08M KC2020 12 13.50459403 53 21.71 -24 39 13.7 20.5 GVEX158474
K20U08M KC2020 12 13.50583103 53 22.99 -24 39 12.0 20.5 GVEX158474
K20U08M bC2020 12 13.92286004 00 52.46 -24 32 45.1 20.8 GVEX158L01
K20U08M bC2020 12 13.92516304 00 54.86 -24 32 41.3 20.4 GVEX158L01
K20U08M bC2020 12 13.93243104 01 02.31 -24 32 29.9 20.5 GVEX158L01
K20U08M KC2020 12 14.17171404 05 25.89 -24 25 39.8 20.48GVEX158I52
K20U08M KC2020 12 14.17269804 05 26.87 -24 25 37.5 20.56GVEX158I52
K20U08M KC2020 12 14.17368304 05 27.87 -24 25 36.3 19.94GVEX158I52
K20U08M KC2020 12 14.17466804 05 28.87 -24 25 35.1 20.66GVEX158I52
Observer details:
474 Mount John Observatory, Lake Tekapo. Observers A. C. Gilmore, P. M.
Kilmartin. Measurer P. M. Kilmartin. 1.0-m f/7.7 reflector + CCD.
807 Cerro Tololo Observatory, La Serena. Observers T. Linder, R. Holmes.
0.61-m f/6.5 astrograph + CCD.
G96 Mt. Lemmon Survey. Observer G. J. Leonard. Measurers 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, T. A. Pruyne, D. Rankin, R. L.
Seaman, F. C. Shelly, K. W. Wierzchos. 1.5-m reflector + 10K CCD.
I52 Steward Observatory, Mt. Lemmon Station. Observer D. C. Fuls. Measurers
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, T. A. Pruyne, D.
Rankin, R. L. Seaman, F. C. Shelly, K. W. Wierzchos. 1.0-m reflector +
CCD.
L01 Visnjan Observatory, Tican. Observers K. Korlevic, V. Dobos, D. Pujagic.
Measurers D. Pujagic, K. Korlevic. 1.0-m f/2.9 reflector + CCD.
W84 Cerro Tololo-DECam. Observer . Measurer F. Valdes. 4.0-m CTIO
reflector.
Orbital elements:
2020 UM8 Earth MOID = 0.0437 AU
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5 Veres
M 3.05161 (2000.0) P Q
n 0.31627608 Peri. 237.04091 +0.28947590 -0.95711951
a 2.1334959 Node 196.14389 +0.89112128 +0.27375818
e 0.5242651 Incl. 2.31313 +0.34943750 +0.09475596
P 3.12 H 25.2 G 0.15 U 6
Residuals in seconds of arc
201018 W84 0.1+ 0.1- 201212 474 0.5+ 0.1- 201213 474 0.3- 0.1+
201018 W84 0.0 0.0 201212 474 0.7+ 0.9+ 201213 474 0.1- 0.0
201018 W84 0.1- 0.1+ 201212 474 0.4+ 0.2+ 201213 L01 0.0 0.2-
201212 G96 0.3- 0.7+ 201212 474 0.2+ 1.0- 201213 L01 0.6+ 0.1-
201212 G96 0.6- 0.1- 201213 807 0.1+ 0.1+ 201213 L01 0.8+ 0.4-
201212 G96 0.6- 0.1+ 201213 807 0.0 0.2+ 201214 I52 0.1- 0.5-
201212 G96 0.1- 0.3- 201213 807 0.1+ 0.1+ 201214 I52 0.4- 0.3+
201212 I52 0.7- 0.8- 201213 474 0.2+ 1.0+ 201214 I52 0.5- 0.0
201212 I52 0.6+ 0.1- 201213 474 0.0 0.2+ 201214 I52 0.5- 0.3-
Ephemeris:
2020 UM8 a,e,i = 2.13, 0.52, 2 q = 1.0150
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2020 11 14 23 44 50.3 -12 29 08 0.1225 1.0547 119.2 54.9 22.8
...
2020 11 29 00 46 17.9 -19 37 33 0.07855 1.0202 113.5 62.5 21.9
...
2020 12 07 02 07 42.4 -24 04 14 0.06031 1.0150 118.1 58.9 21.2
...
2020 12 13 03 44 22.4 -24 49 59 0.05370 1.0174 126.6 51.0 20.8
2020 12 14 04 02 15.8 -24 28 12 0.05347 1.0183 128.2 49.4 20.7
2020 12 15 04 20 08.0 -23 57 00 0.05352 1.0194 129.8 47.9 20.7
...
2020 12 21 05 56 00.8 -18 24 18 0.05951 1.0288 138.2 39.6 20.7
...
2020 12 29 07 15 43.9 -09 57 21 0.07918 1.0493 145.2 32.4 21.2
...
2021 01 13 08 15 18.3 +00 09 10 0.1348 1.1087 156.8 20.5 22.1
M. P. C. Staff (C) Copyright 2020 MPC M.P.E.C. 2020-X158
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