MPEC 2020-X74 : 2020 XB2
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M.P.E.C. 2020-X74 Issued 2020 December 9, 08:54 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
2020 XB2
Observations:
K20X02B* C2020 12 07.37520604 43 48.03 +01 40 19.0 19.36GVEX074G96
K20X02B C2020 12 07.37571504 43 59.592+01 41 16.60 19.56wUEX074F52
K20X02B C2020 12 07.38035904 43 50.58 +01 42 11.2 19.54GVEX074G96
K20X02B C2020 12 07.38551204 43 53.15 +01 44 04.1 19.44GVEX074G96
K20X02B C2020 12 07.38665004 44 04.797+01 45 17.56 19.67wUEX074F52
K20X02B C2020 12 07.39066504 43 55.75 +01 45 57.6 19.58GVEX074G96
K20X02B KC2020 12 07.43082 04 44 15.95 +02 00 30.6 19.5 RoEX074691
K20X02B KC2020 12 07.43467 04 44 17.89 +02 01 53.1 19.7 RoEX074691
K20X02B mC2020 12 07.43826104 44 19.67 +02 03 08.7 20.12GVEX074I52
K20X02B KC2020 12 07.43851 04 44 19.83 +02 03 14.9 19.5 RoEX074691
K20X02B mC2020 12 07.43856504 44 19.84 +02 03 15.8 VEX074I52
K20X02B mC2020 12 07.43886904 44 19.92 +02 03 22.0 19.67GVEX074I52
K20X02B mC2020 12 07.43917304 44 20.09 +02 03 28.9 19.51GVEX074I52
K20X02B C2020 12 08.27178504 51 08.79 +06 16 27.5 19.54GVEX074G96
K20X02B C2020 12 08.27201704 51 08.90 +06 16 31.8 19.61GVEX074G96
K20X02B C2020 12 08.27224904 51 08.98 +06 16 35.0 19.97GVEX074G96
K20X02B C2020 12 08.27248104 51 09.05 +06 16 39.0 19.90GVEX074G96
K20X02B IC2020 12 08.27309 04 51 06.27 +06 16 28.4 19.3 RqEX074H36
K20X02B KC2020 12 08.28090 04 51 08.85 +06 18 29.5 19.4 RqEX074H36
K20X02B KC2020 12 08.28873 04 51 11.43 +06 20 30.5 19.3 RqEX074H36
K20X02B KC2020 12 09.23668204 56 39.73 +09 46 13.5 20.4 VuEX074H21
K20X02B KC2020 12 09.23958804 56 40.42 +09 46 45.5 20.3 VuEX074H21
K20X02B KC2020 12 09.24384804 56 41.39 +09 47 32.7 20.3 VuEX074H21
K20X02B KC2020 12 09.26062904 56 49.23 +09 50 55.9 20.13GVEX074I52
K20X02B KC2020 12 09.26161704 56 49.47 +09 51 06.6 19.69GVEX074I52
K20X02B KC2020 12 09.26260904 56 49.68 +09 51 17.7 20.17GVEX074I52
K20X02B KC2020 12 09.26359704 56 49.93 +09 51 28.3 19.90GVEX074I52
Observer details:
691 Steward Observatory, Kitt Peak-Spacewatch. Observer T. H. Bressi. 0.9-m
f/3 reflector + CCD.
F52 Pan-STARRS 2, Haleakala. Observers J. Bulger, T. Dukes, T. Lowe, A.
Schultz, M. Willman. Measurers K. Chambers, S. Chastel, T. de Boer, L.
Denneau, J. Fairlamb, H. Flewelling, M. Huber, C.-C. Lin, E. Magnier, Y.
Ramanjooloo, R. Wainscoat, R. Weryk. 1.8-m Ritchey-Chretien + CCD.
G96 Mt. Lemmon Survey. Observer T. A. Pruyne. 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.
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.
H36 Sandlot Observatory, Scranton. Observer G. Hug. 0.56-m reflector + CCD.
I52 Steward Observatory, Mt. Lemmon Station. Observers D. C. Fuls, D. Rankin.
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.
Orbital elements:
2020 XB2 Earth MOID = 0.0147 AU
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5 Bell
M 23.93662 (2000.0) P Q
n 0.42100844 Peri. 273.84152 +0.99464016 -0.09419203
a 1.7630942 Node 91.56681 +0.10338506 +0.91226224
e 0.5582192 Incl. 2.44518 -0.00157315 +0.39862948
P 2.34 H 26.00 G 0.15 U 7
Residuals in seconds of arc
201207 G96 (0.0- 1.1+) 201207 691 (0.0+ 1.4-) 201209 H21 0.0- 0.0-
201207 F52 0.1- 0.0- 201207 I52 0.7+ 0.4+ 201209 H21 0.0- 0.0-
201207 F52 0.1- 0.0- 201207 I52 0.5- 0.0+ 201209 H21 0.1+ 0.1-
201207 G96 0.2- 0.2- 201207 I52 0.2- 0.4+ 201209 H21 0.1+ 0.1-
201207 G96 0.2- 0.5- 201208 G96 0.2- 0.6- 201209 H21 0.4- 0.2+
201207 F52 0.0+ 0.2+ 201208 G96 0.2+ 0.1+ 201209 H21 0.4- 0.2+
201207 F52 0.0+ 0.2+ 201208 G96 0.3+ 0.2- 201209 I52 0.1- 0.1+
201207 G96 0.3+ 0.0+ 201208 G96 0.2+ 0.2+ 201209 I52 0.1+ 0.1-
201207 691 0.0+ 0.6- 201208 H36 0.8+ 0.5+ 201209 I52 0.2- 0.1+
201207 691 0.1+ 0.7- 201208 H36 0.1+ 1.4+ 201209 I52 0.1+ 0.1-
201207 I52 0.4+ 0.2- 201208 H36 (0.6- 2.4+)
Ephemeris:
2020 XB2 a,e,i = 1.76, 0.56, 2 q = 0.7789
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2020 11 09 17 25 50.3 -30 35 16 0.2189 0.8249 36.5 134.4 28.5
...
2020 11 24 17 50 28.6 -37 30 07 0.08437 0.9148 29.5 147.9 28.5
...
2020 12 02 20 41 51.7 -65 39 50 0.02202 0.9746 58.7 120.2 22.5
...
2020 12 08 04 49 11.1 +05 04 18 0.03964 1.0229 162.2 17.1 19.9
2020 12 09 04 55 27.5 +09 02 19 0.04751 1.0311 166.1 13.3 20.2
2020 12 10 05 00 00.6 +11 52 19 0.05559 1.0394 168.8 10.6 20.5
...
2020 12 16 05 12 54.6 +19 34 16 0.1064 1.0900 173.7 5.7 21.8
...
2020 12 24 05 19 20.6 +22 50 35 0.1786 1.1590 168.3 9.9 23.2
...
2021 01 08 05 27 41.0 +24 53 04 0.3295 1.2895 155.0 18.8 25.1
M. P. C. Staff (C) Copyright 2020 MPC M.P.E.C. 2020-X74
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