[Iaude] MPEC X155: 2020 XW4 [a=2.49,e=0.53,i=23.2,H=21.4]
mpec at marsden.cfa.harvard.edu
mpec at marsden.cfa.harvard.edu
Sun Dec 13 19:44:46 EST 2020
M.P.E.C. 2020-X155 Issued 2020 December 14, 00:43 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 XW4
Observations:
K20X04W C2020 12 09.53132909 42 59.022+39 38 42.71 21.54GVEX155F51
K20X04W C2020 12 09.54569809 43 00.710+39 38 00.91 21.26GVEX155F51
K20X04W C2020 12 09.55994909 43 02.379+39 37 18.97 21.58GVEX155F51
K20X04W C2020 12 09.57425009 43 04.038+39 36 37.16 21.82GVEX155F51
K20X04W* C2020 12 10.54733909 45 05.469+38 47 43.93 21.51wUEX155F52
K20X04W C2020 12 10.56780009 45 07.768+38 46 41.94 21.44wUEX155F52
K20X04W C2020 12 10.57804409 45 08.894+38 46 10.67 20.98wUEX155F52
K20X04W !C2020 12 12.22911909 48 24.86 +37 18 59.1 20.9 GVEX155J04
K20X04W !C2020 12 12.23450109 48 25.43 +37 18 41.4 20.9 GVEX155J04
K20X04W !C2020 12 12.23987609 48 26.01 +37 18 23.5 20.5 GVEX155J04
K20X04W pC2020 12 13.11483309 50 05.70 +36 29 52.9 21.6 GVEX155L01
K20X04W KC2020 12 13.11680309 50 05.91 +36 29 46.7 21.5 GVEX155L01
K20X04W MC2020 12 13.11955909 50 06.23 +36 29 38.1 21.5 GVEX155L01
K20X04W 1C2020 12 13.99077 09 51 42.85 +35 39 45.4 21.6 VVEX155033
K20X04W 1C2020 12 13.99436 09 51 43.16 +35 39 33.4 21.4 VVEX155033
K20X04W 1C2020 12 13.99794 09 51 43.57 +35 39 20.8 21.3 VVEX155033
Observer details:
033 Karl Schwarzschild Observatory, Tautenburg. Observers S. Melnikov, C.
Hoegner, B. Stecklum. Measurer B. Stecklum. 1.34-m f/3 Schmidt + CCD.
F51 Pan-STARRS 1, Haleakala. Observers J. Bulger, K. Chambers, T. Lowe, A.
Schultz, M. Willman. Measurers S. Chastel, M. Huber, Y. Ramanjooloo, R.
Wainscoat, R. Weryk. 1.8-m Ritchey-Chretien + 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.
J04 ESA Optical Ground Station, Tenerife. Observer D. Abreu. Measurers R.
Kresken, M. Micheli, D. Koschny, L. Conversi, A. Knofel, M. Busch, E.
Schwab. 1.0-m f/4.4 reflector + CCD.
L01 Visnjan Observatory, Tican. Observers K. Korlevic, D. Pujagic. 1.0-m
f/2.9 reflector + CCD.
Orbital elements:
2020 XW4 Earth MOID = 0.2000 AU
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5 Veres
M 352.68054 (2000.0) P Q
n 0.25106686 Peri. 192.93182 -0.55142465 -0.74991707
a 2.4885314 Node 291.69181 +0.79612565 -0.34218203
e 0.5272005 Incl. 23.16022 +0.24922841 -0.56615885
P 3.93 H 21.4 G 0.15 U 8
Residuals in seconds of arc
201209 F51 0.0 0.0 201210 F52 0.1- 0.2- 201213 L01 0.1- 0.8+
201209 F51 0.0 0.1+ 201212 J04 0.1+ 0.1+ 201213 033 0.6+ 0.3-
201209 F51 0.0 0.1- 201212 J04 0.1+ 0.0 201213 033 0.2- 0.1+
201209 F51 0.0 0.0 201212 J04 0.3+ 0.3- 201213 033 0.3+ 0.2-
201210 F52 0.2+ 0.3- 201213 L01 0.6- 0.3-
201210 F52 0.2+ 0.1- 201213 L01 0.5- 0.2+
Ephemeris:
2020 XW4 a,e,i = 2.49, 0.53, 23 q = 1.1766
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2020 11 14 08 29 23.3 +52 48 49 0.6473 1.3675 111.6 42.3 22.8
...
2020 11 29 09 17 07.2 +46 45 47 0.5067 1.2923 116.1 43.3 22.2
...
2020 12 07 09 37 24.4 +41 37 34 0.4393 1.2582 119.0 43.2 21.8
...
2020 12 13 09 49 52.6 +36 36 26 0.3933 1.2360 121.4 42.8 21.5
2020 12 14 09 51 42.7 +35 39 26 0.3861 1.2326 121.9 42.7 21.4
2020 12 15 09 53 28.7 +34 40 20 0.3790 1.2293 122.3 42.6 21.4
...
2020 12 21 10 02 35.1 +27 58 27 0.3400 1.2114 125.0 41.7 21.1
...
2020 12 29 10 10 45.2 +16 47 00 0.2991 1.1930 128.6 40.1 20.7
...
2021 01 13 10 13 45.3 -09 23 27 0.2684 1.1768 130.9 39.2 20.5
M. P. C. Staff (C) Copyright 2020 MPC M.P.E.C. 2020-X155
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