[Iaude] MPEC X102: 2020 XW2 [a=1.46,e=0.27,i=1.8,H=24.9]

[mpec at marsden.cfa.harvard.edu]

M.P.E.C. 2020-X102                            Issued 2020 December 10, 20:24 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 XW2                                    


Observations:
     K20X02W* C2020 12 07.23521102 46 58.252+33 16 39.26         21.82wUEX102F51
     K20X02W  C2020 12 07.24858102 46 58.496+33 16 54.34         22.05wUEX102F51
     K20X02W  C2020 12 07.26211102 46 58.720+33 17 09.32         21.26wUEX102F51
     K20X02W  C2020 12 07.27552002 46 58.939+33 17 23.91         22.41wUEX102F51
     K20X02W KC2020 12 08.12206502 47 41.21 +33 31 03.4          21.38GVEX102V06
     K20X02W KC2020 12 08.12839902 47 41.35 +33 31 10.4          21.31GVEX102V06
     K20X02W KC2020 12 08.13156702 47 41.43 +33 31 14.0          21.68GVEX102V06
     K20X02W KC2020 12 09.38181 02 48 44.98 +33 51 35.7                oEX102291
     K20X02W KC2020 12 09.39524 02 48 45.63 +33 51 45.9                oEX102291
     K20X02W KC2020 12 10.09694002 49 35.99 +34 03 29.6          21.5 VuEX102H21
     K20X02W KC2020 12 10.10240702 49 36.20 +34 03 35.3          21.6 VuEX102H21
     K20X02W KC2020 12 10.11060602 49 36.50 +34 03 43.7          21.4 VuEX102H21
     K20X02W 1C2020 12 10.13648 02 49 39.79 +34 03 53.2                LEX102658
     K20X02W 1C2020 12 10.13984 02 49 39.92 +34 03 56.8                LEX102658
     K20X02W 1C2020 12 10.14317 02 49 40.06 +34 04 00.3                LEX102658
     K20X02W 1C2020 12 10.14653 02 49 40.20 +34 04 03.6                LEX102658
     K20X02W 1C2020 12 10.14986 02 49 40.35 +34 04 07.2                LEX102658
     K20X02W 1C2020 12 10.15323 02 49 40.48 +34 04 10.6                LEX102658

Observer details:
291 LPL/Spacewatch II.  Observer M. T. Read.  1.8-m f/2.7 reflector + CCD.
658 Dominion Astrophysical Observatory.  Observer D. D. Balam.  Measurers D.
    D. Balam, D. W. E. Green, C. E. Spratt.  1.82-m reflector + CCD.
F51 Pan-STARRS 1, Haleakala.  Observers J. Bulger, 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.
H21 Astronomical Research Observatory, Westfield.  Observer R. Holmes.
    Measurers S. Foglia, L. Buzzi, T. Linder, R. Holmes.  0.81-m f/4.0
    astrograph + CCD.
V06 Catalina Sky Survey-Kuiper.  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.  1.55-m reflector +
    1K CCD.

Orbital elements:
2020 XW2                                                 Earth MOID = 0.0876 AU
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5                 Veres
M 350.33758              (2000.0)            P               Q
n   0.55990115     Peri.  100.33768     -0.16612812     -0.98610408
a   1.4579025      Node   359.22470     +0.89168390     -0.15003279
e   0.2696758      Incl.    1.84273     +0.42107158     -0.07133655
P   1.76           H   24.9           G   0.15           U   7
Residuals in seconds of arc
201207 F51  0.1-  0.1-    201208 V06  0.1-  0.2+    201210 658  0.6+  0.5+
201207 F51  0.0   0.0     201209 291  0.2-  0.2+    201210 658  0.3+  0.4+
201207 F51  0.0   0.0     201209 291  0.1+  0.1-    201210 658  0.1+  0.3+
201207 F51  0.2+  0.0     201210 H21  0.2-  0.3-    201210 658  0.0   0.1-
201208 V06  0.0   0.0     201210 H21  0.1-  0.3-    201210 658  0.0   0.1-
201208 V06  0.2-  0.0     201210 H21  0.2-  0.3-    201210 658  0.3-  0.3-

Ephemeris:
2020 XW2                 a,e,i = 1.46, 0.27, 2                   q = 1.0647
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2020 11 10    02 50 29.1 +26 15 42   0.1701  1.1584   170.5     8.1    21.9
...
2020 11 25    02 44 04.1 +29 59 18   0.1363  1.1161   159.9    17.7    21.7
...
2020 12 03    02 44 32.3 +32 07 05   0.1243  1.0979   153.0    24.1    21.7
...
2020 12 09    02 48 26.8 +33 45 34   0.1174  1.0867   148.4    28.3    21.7
2020 12 10    02 49 28.3 +34 02 01   0.1164  1.0850   147.7    29.0    21.7
2020 12 11    02 50 36.9 +34 18 28   0.1155  1.0834   147.1    29.6    21.7
...
2020 12 17    03 00 14.2 +35 56 01   0.1107  1.0751   143.5    33.0    21.7
...
2020 12 25    03 21 25.7 +37 57 05   0.1065  1.0677   140.4    35.9    21.6
...
2021 01 09    04 26 55.3 +40 04 02   0.1060  1.0659   139.2    37.1    21.7

M. P. C. Staff               (C) Copyright 2020 MPC           M.P.E.C. 2020-X102