[Iaude] MPEC X109: 2020 XZ2 [a=1.67,e=0.47,i=7.8,H=22.3]

mpec at marsden.cfa.harvard.edu mpec at marsden.cfa.harvard.edu
Fri Dec 11 11:27:18 EST 2020


M.P.E.C. 2020-X109                            Issued 2020 December 11, 16:26 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 XZ2                                    


Observations:
     K20X02Z* C2020 12 07.34017603 35 09.341-15 37 59.43         20.96wUEX109F51
     K20X02Z  C2020 12 07.35410203 35 10.427-15 36 47.67         20.97wUEX109F51
     K20X02Z  C2020 12 07.38194003 35 12.594-15 34 24.45         20.82wUEX109F51
     K20X02Z |C2020 12 09.16210 03 37 52.97 -13 06 50.4          21.3 VuEX109807
     K20X02Z |C2020 12 09.16621 03 37 53.27 -13 06 30.9          21.1 VuEX109807
     K20X02Z |C2020 12 09.17032 03 37 53.59 -13 06 11.8          21.1 VuEX109807
     K20X02Z |C2020 12 10.09866 03 39 13.96 -11 53 48.1          20.8 VuEX109807
     K20X02Z |C2020 12 10.10185 03 39 14.22 -11 53 33.1          20.8 VuEX109807
     K20X02Z |C2020 12 10.10507 03 39 14.49 -11 53 18.2          20.5 VuEX109807
     K20X02Z 4C2020 12 10.89839 03 40 21.01 -10 54 11.4          20.9 GVEX109J04
     K20X02Z 4C2020 12 10.90304 03 40 21.31 -10 53 50.9          20.6 GVEX109J04
     K20X02Z 4C2020 12 10.90768 03 40 21.67 -10 53 30.3          20.8 GVEX109J04
     K20X02Z |C2020 12 11.15760 03 40 40.76 -10 34 33.4          21.1 VuEX109807
     K20X02Z |C2020 12 11.16375 03 40 41.18 -10 34 06.5          21.1 VuEX109807
     K20X02Z |C2020 12 11.16985 03 40 41.59 -10 33 39.6          20.8 VuEX109807
     K20X02Z KC2020 12 11.20850603 40 44.90 -10 31 28.4          22.0 VuEX109H21
     K20X02Z KC2020 12 11.21499603 40 45.32 -10 31 00.4          22.2 VuEX109H21
     K20X02Z  C2020 12 11.35830103 40 57.500-10 20 25.78         21.16wUEX109F51
     K20X02Z  C2020 12 11.37032103 40 58.305-10 19 33.29         21.27wUEX109F51
     K20X02Z  C2020 12 11.38233603 40 59.110-10 18 41.08         21.05wUEX109F51
     K20X02Z  C2020 12 11.39435903 40 59.915-10 17 48.81         21.37wUEX109F51

Observer details:
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.
H21 Astronomical Research Observatory, Westfield.  Observer R. Holmes.
    Measurers S. Foglia, L. Buzzi, T. Linder, R. Holmes.  1.3-m f/4.0
    astrograph + CCD.
J04 ESA Optical Ground Station, Tenerife.  Observer D. Abreu.  Measurers A.
    Knofel, D. Koschny, M. Busch, M. Micheli, E. Schwab.  1.0-m f/4.4
    reflector + CCD.

Orbital elements:
2020 XZ2                                                 Earth MOID = 0.0013 AU
Epoch 2020 Dec. 17.0 TT = JDT 2459200.5                 Veres
M  33.20709              (2000.0)            P               Q
n   0.45653541     Peri.  233.47710     +0.99177706     +0.05835126
a   1.6703971      Node   122.91252     -0.01810883     +0.94503710
e   0.4680699      Incl.    7.79775     -0.12668989     +0.32171416
P   2.16           H   22.3           G   0.15           U   8
Residuals in seconds of arc
201207 F51  0.0   0.1-    201210 807  0.1-  0.1-    201211 807  0.1-  0.1-
201207 F51  0.0   0.0     201210 807  0.6+  0.0     201211 H21  0.0   0.5+
201207 F51  0.1+  0.1+    201210 J04  0.0   0.0     201211 H21  0.5-  0.0
201209 807  0.4-  0.6+    201210 J04  0.4-  0.1-    201211 F51  0.0   0.0
201209 807  0.4-  0.4+    201210 J04  0.1+  0.0     201211 F51  0.0   0.1+
201209 807  0.1-  0.2-    201211 807  0.1+  0.0     201211 F51  0.1+  0.0
201210 807  0.6-  0.5-    201211 807  0.0   0.2-    201211 F51  0.1+  0.1-

Ephemeris:
2020 XZ2                 a,e,i = 1.67, 0.47, 8                   q = 0.8885
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2020 11 11    00 43 19.0 -71 36 37   0.1477  0.9954    87.8    83.7    21.1
...
2020 11 26    03 09 51.2 -36 10 07   0.1673  1.0833   121.3    51.1    20.5
...
2020 12 04    03 29 28.4 -20 45 19   0.2037  1.1355   133.5    39.0    20.7
...
2020 12 10    03 39 05.2 -12 01 36   0.2401  1.1761   138.8    33.5    21.0
2020 12 11    03 40 28.2 -10 46 23   0.2468  1.1830   139.4    32.8    21.0
2020 12 12    03 41 48.7 -09 34 13   0.2537  1.1899   139.9    32.2    21.1
...
2020 12 18    03 49 14.2 -03 18 01   0.2986  1.2316   141.4    29.9    21.4
...
2020 12 26    03 58 25.2 +03 04 00   0.3672  1.2878   140.4    29.1    21.9
...
2021 01 10    04 16 04.1 +11 04 33   0.5194  1.3933   133.6    30.7    22.9

M. P. C. Staff               (C) Copyright 2020 MPC           M.P.E.C. 2020-X109




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