[Iaude] MPEC X82: 2020 XK2 [a=1.45,e=0.45,i=27.0,H=23.0]

mpec at marsden.cfa.harvard.edu mpec at marsden.cfa.harvard.edu
Wed Dec 9 04:08:45 EST 2020


M.P.E.C. 2020-X82                              Issued 2020 December 9, 09:07 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 XK2                                    


Observations:
     K20X02K* C2020 12 07.35129303 27 22.869-08 04 27.57         20.90wUEX082F51
     K20X02K  C2020 12 07.36520703 27 20.802-08 02 00.65         21.35wUEX082F51
     K20X02K  C2020 12 07.37911803 27 18.747-07 59 33.67         20.88wUEX082F51
     K20X02K |C2020 12 08.20941 03 25 33.79 -05 36 04.7          20.6 VuEX082807
     K20X02K |C2020 12 08.21296 03 25 33.31 -05 35 28.9          21.0 VuEX082807
     K20X02K |C2020 12 08.21635 03 25 32.85 -05 34 54.5          20.8 VuEX082807
     K20X02K KC2020 12 09.25155 03 23 35.39 -02 46 38.6          20.8 RoEX082291
     K20X02K KC2020 12 09.25394 03 23 35.07 -02 46 15.8          21.6 RoEX082291
     K20X02K KC2020 12 09.25633 03 23 34.80 -02 45 53.3          21.0 RoEX082291
     K20X02K KC2020 12 09.35733003 23 22.50 -02 29 56.8          20.73GVEX082I52
     K20X02K KC2020 12 09.35901003 23 22.33 -02 29 41.0          21.03GVEX082I52
     K20X02K KC2020 12 09.36068903 23 22.12 -02 29 24.4          20.95GVEX082I52
     K20X02K KC2020 12 09.36237003 23 21.90 -02 29 09.5          21.59GVEX082I52

Observer details:
291 LPL/Spacewatch II.  Observer M. T. Read.  1.8-m f/2.7 reflector + CCD.
807 Cerro Tololo Observatory, La Serena.  Observers T. Linder, R. Holmes.
    0.61-m f/6.5 astrograph + 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.
I52 Steward Observatory, Mt. Lemmon Station.  Observer 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 XK2                                                 Earth MOID = 0.0443 AU
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5                 Bell                    
M  45.16687              (2000.0)            P               Q                  
n   0.56630463     Peri.  261.09591     +0.83824426     +0.31213042             
a   1.4468915      Node    79.71034     -0.10536598     +0.89723051             
e   0.4508302      Incl.   27.02852     -0.53501829     +0.31233318             
P   1.74           H   23.02          G   0.15           U   9                  
Residuals in seconds of arc
201207 F51  0.1+  0.0+    201208 807  0.0+  0.0-    201209 I52  0.1-  0.2-
201207 F51  0.1+  0.0+    201208 807  0.0-  0.1-    201209 I52  0.3+  0.2-
201207 F51  0.0-  0.1-    201208 807  0.1-  0.0+    201209 I52  0.1+  0.5+
201207 F51  0.0-  0.1-    201209 291  0.1+  0.1+    201209 I52  0.2-  0.4-
201207 F51  0.0-  0.1+    201209 291  0.3-  0.2+
201207 F51  0.0-  0.0+    201209 291  0.1+  0.0-

Ephemeris:
2020 XK2                 a,e,i = 1.45, 0.45, 27                  q = 0.7946
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2020 11 09    08 57 18.1 -77 46 26   0.2725  0.9500    73.5    90.5    23.3
...
2020 11 24    04 24 42.0 -53 24 45   0.1816  1.0515   105.8    64.6    21.7
...
2020 12 02    03 42 22.0 -25 40 45   0.1755  1.1086   130.8    42.3    21.1
...
2020 12 08    03 26 00.6 -06 11 56   0.2006  1.1518   143.2    30.9    21.2
2020 12 09    03 24 03.5 -03 26 31   0.2069  1.1591   144.2    29.8    21.2
2020 12 10    03 22 17.1 -00 50 28   0.2138  1.1663   145.0    29.0    21.3
...
2020 12 16    03 14 49.1 +11 42 27   0.2640  1.2095   144.8    28.0    21.8
...
2020 12 24    03 11 18.5 +22 16 09   0.3479  1.2666   138.9    30.7    22.6
...
2021 01 08    03 17 27.6 +32 25 56   0.5337  1.3705   126.6    35.1    23.8

M. P. C. Staff               (C) Copyright 2020 MPC           M.P.E.C. 2020-X82




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