[Iaude] MPEC X16: 2020 KZ7 [a=1.76,e=0.48,i=8.5,H=22.43]

mpec at marsden.cfa.harvard.edu mpec at marsden.cfa.harvard.edu
Sun Dec 3 09:13:58 EST 2023


M.P.E.C. 2023-X16                              Issued 2023 December 3, 14:12 UT

     The Minor Planet Electronic Circulars contain information on unusual
         minor planets, routine data on comets and natural satellites,
         and occasional editorial announcements.  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 KZ7                                    


                           Revision to MPEC 2020-M58                            

Additional Observations:
     K20K07Z  C2013 01 22.42309 08 34 45.26 +24 27 24.7          20.8 VrEX016G96
     K20K07Z  C2013 01 22.43072 08 34 44.72 +24 27 39.2          21.2 VrEX016G96
     K20K07Z  C2013 01 22.43865 08 34 44.11 +24 27 56.1          20.8 VrEX016G96
     K20K07Z  C2013 01 22.44624 08 34 43.57 +24 28 10.5          20.9 VrEX016G96
     K20K07Z -C2013 07 04.29988322 14 55.45 -11 44 59.4                WEX016309
     K20K07Z -C2013 07 04.30098222 14 55.36 -11 45 01.1                WEX016309

Observer details:
309 Cerro Paranal.  Observer .  Measurer S. Deen.  2.65-m Ritchey-Chretien +
    CCD.
G96 Mt. Lemmon Survey.  Observers A. Boattini, J. A. Johnson.  Measurers A.
    Boattini, E. J. Christensen, A. R. Gibbs, A. D. Grauer, R. E. Hill, J. A.
    Johnson, R. A. Kowalski, S. M. Larson, R. H. McNaught.  1.5-m reflector +
    CCD.

First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
130122 G96 0.04- 0.00-    130704 309 0.02- 0.00-    MPO725003   +0.01 days

Orbital elements:
2020 KZ7                                                 Earth MOID = 0.0838 AU
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5                Veres                   
M 161.28244              (2000.0)            P               Q                  
n   0.42083530     Peri.   96.41675     -0.85732373     +0.49647607             
a   1.7635777      Node   113.42522     -0.51114769     -0.78968452             
e   0.4831544      Incl.    8.52623     -0.06102511     -0.36043012             
P   2.34           H   22.43          G   0.15           U   0                  
Residuals in seconds of arc
130122 G96  0.0   0.2-    200203 G96  0.6+  0.3+    200629 F51  0.1+  0.1-
130122 G96  0.2+  0.7-    200531 C51  0.2+  0.9-    200629 F51  0.1+  0.1+
130122 G96  0.2-  0.6+    200601 C51  0.7+  0.1+    200629 F51  0.0   0.0
130122 G96  0.1-  0.1+    200601 C51  2.0-  1.9+    200713 474  0.1+  0.2+
130704 309  0.1+  0.0     200601 C51  0.2-  0.2-    200713 474  0.1+  0.0
130704 309  0.1+  0.1+    200601 C51  1.2+  0.4-    200713 474  0.2+  0.4-
200114 G96  0.3+  0.4+    200621 F52  0.1-  0.2+    200713 474  0.1+  0.0
200114 G96  0.7-  0.0     200621 F52  0.0   0.2-    200714 G96  0.0   0.4-
200123 G96  0.5-  0.2-    200621 F52  0.1-  0.2-    200714 G96  0.0   0.1-
200123 G96  0.2+  0.3-    200629 F51  0.1-  0.1+    200714 G96  0.4-  0.3+

Ephemeris:
2020 KZ7                 a,e,i = 1.76, 0.48, 9                   q = 0.9115
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2023 11 03    01 54 01.3 -02 37 28   1.6593  2.6152   160.4     7.3    26.1
...
2023 11 18    01 37 27.1 -03 25 11   1.7441  2.6109   144.2    12.8    26.5
...
2023 11 26    01 30 44.4 -03 29 50   1.8116  2.6066   135.2    15.5    26.7
...
2023 12 02    01 26 53.5 -03 24 14   1.8705  2.6026   128.6    17.2    26.8
2023 12 03    01 26 21.2 -03 22 35   1.8809  2.6018   127.5    17.5    26.8
2023 12 04    01 25 50.6 -03 20 45   1.8914  2.6010   126.5    17.7    26.8
...
2023 12 10    01 23 24.6 -03 05 42   1.9577  2.5960   120.1    19.2    26.9
...
2023 12 18    01 21 48.2 -02 35 55   2.0525  2.5880   112.1    20.6    27.1
...
2024 01 02    01 23 28.5 -01 15 41   2.2416  2.5695    98.0    22.3    27.3

A. U. Tomatic                (C) Copyright 2023 MPC           M.P.E.C. 2023-X16




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