[Iaude] MPEC Y10: 2020 AC3 [a=2.64,e=0.59,i=25.1,H=19.89]

mpec at marsden.cfa.harvard.edu mpec at marsden.cfa.harvard.edu
Sat Dec 16 09:09:17 EST 2023


M.P.E.C. 2023-Y10                             Issued 2023 December 16, 14:07 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 AC3                                    


                           Revision to MPEC 2020-A108                           

Additional Observations:
     K20A03C 1C2006 12 13.40803 08 00 00.12 +18 46 32.0          22.5 GVEY010G96
     K20A03C 1C2006 12 13.41352 08 00 00.09 +18 46 39.0          21.7 GVEY010G96
     K20A03C 1C2006 12 13.41922 08 00 00.14 +18 46 44.8          22.1 GVEY010G96
     K20A03C 0C2023 12 12.50838505 04 29.044+05 03 03.06         23.39GVEY010T12
     K20A03C 0C2023 12 12.51435605 04 28.504+05 03 05.05         23.12GVEY010T12
     K20A03C 0C2023 12 12.52019305 04 27.967+05 03 06.98         23.37GVEY010T12
     K20A03C  C2023 12 13.27779 05 03 20.15 +05 07 22.6          22.9 GVEY010V06
     K20A03C  C2023 12 13.29257 05 03 18.78 +05 07 27.9          22.9 GVEY010V06
     K20A03C  C2023 12 13.30867 05 03 17.34 +05 07 33.2          22.7 GVEY010V06
     K20A03C KC2023 12 15.23670405 00 22.669+05 19 07.14         23.08GVEY010V06
     K20A03C KC2023 12 15.25894805 00 20.628+05 19 15.42         23.48GVEY010V06
     K20A03C KC2023 12 15.27006805 00 19.602+05 19 20.14         22.73GVEY010V06

Observer details:
G96 Mt. Lemmon Survey.  Observer R. E. Hill.  Measurers B. Gray, D. Rankin, F.
    C. Shelly.  1.5-m reflector + CCD.
T12 University of Hawaii 88-inch telescope, Maunakea.  Observer D. J. Tholen.
    2.24-m f/10.1 reflector + 2112 x 2112 pixels STA1600 10k CCD.
V06 Catalina Sky Survey-Kuiper.  Observer K. W. Wierzchos.  Measurers B. Gray,
    D. Rankin, F. C. Shelly, E. C. Beshore, D. Fay, J. B. Fazekas, D. C. Fuls,
    A. R. Gibbs, A. D. Grauer, H. Groeller, J. K. Hogan, R. A. Kowalski, S. M.
    Larson, G. J. Leonard, R. L. Seaman, K. W. Wierzchos.  1.55-m reflector +
    CCD, 1.55-m reflector + 1K CCD.

First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
061213 G96 0.31+ 0.06+    231215 V06 0.04+ 0.02+    MPO782685   +0.00 days

Orbital elements:
2020 AC3                                                 Earth MOID = 0.3676 AU
Epoch 2023 Sept. 13.0 TT = JDT 2460200.5                Veres                   
M 292.86696              (2000.0)            P               Q                  
n   0.22984060     Peri.   92.51428     -0.88150777     +0.21972903             
a   2.6394790      Node   100.41911     -0.35850498     -0.88748122             
e   0.5934500      Incl.   25.14648     +0.30727549     -0.40508793             
P   4.29           H   19.89          G   0.15           U   0                  
Residuals in seconds of arc
061213 G96  0.1+  0.5-    200106 H21  0.3-  0.3-    200206 G96  0.1-  0.4+
061213 G96  0.3-  0.3+    200106 H21  0.5-  0.2-    200206 G96  0.2-  0.0
061213 G96  0.4+  0.4-    200106 H21  0.5-  0.3-    200206 G96  0.3+  0.1-
200104 G96  0.4-  0.4+    200106 I52  1.0-  1.0+    200206 G96  0.2+  0.1+
200104 G96  0.1+  0.1+    200106 I52  0.3+  0.4+    200221 I52  0.2+  0.2-
200104 G96  0.1+  0.1+    200106 I52  0.5-  0.0     200221 I52  0.5-  0.2-
200104 G96  0.4+  0.9+    200107 I52  0.3-  0.3+    200221 I52  0.3-  0.1-
200104 I52  0.0   0.1-    200107 I52  0.4+  0.5+    200324 F52  0.1+  0.1-
200104 I52  0.0   0.4-    200107 I52  0.1-  0.4-    200324 F52  0.0   0.0
200104 I52  0.1-  0.0     200118 F51  0.2+  0.1+    200324 F52  0.4-  0.1+
200104 I52  0.1-  0.2-    200118 F51  0.0   0.1-    200324 F52  0.2-  0.1-
200105 L01  0.5-  0.6+    200119 F52  0.1-  0.1-    231212 T12  0.1-  0.1-
200105 L01  0.9-  0.4-    200119 F52  0.0   0.2-    231212 T12  0.0   0.0
200105 L01  0.4-  0.1-    200119 F52  0.1+  0.1-    231212 T12  0.0   0.1-
200105 L01  0.4-  0.5-    200124 I52  0.6+  0.2+    231213 V06  0.1-  0.1-
200105 104  0.2+  0.0     200124 I52  0.8+  0.3-    231213 V06  0.2-  0.1+
200105 104  0.0   0.0     200124 I52  0.2-  0.9-    231213 V06  0.5+  0.2-
200105 104  0.6-  0.3+    200124 I52  0.1-  0.3-    231215 V06  0.2-  0.0
200105 H01  0.0   0.1-    200129 F52  0.0   0.2-    231215 V06  0.3+  0.1-
200105 H01  0.0   0.2-    200129 F52  0.2+  0.1-    231215 V06  0.5+  0.5+
200105 H01  0.1+  0.0     200129 F52  0.2+  0.1-
200105 H01  0.2+  0.0     200129 F52  0.0   0.0

Ephemeris:
2020 AC3                 a,e,i = 2.64, 0.59, 25                  q = 1.0731
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2023 11 16    05 36 15.6 +03 56 16   1.6709  2.5400   144.2    13.2    23.8
...
2023 12 01    05 20 32.5 +04 15 25   1.4977  2.4406   158.1     8.7    23.3
...
2023 12 09    05 09 38.7 +04 45 08   1.4302  2.3862   161.9     7.4    23.1
...
2023 12 15    05 00 44.2 +05 17 42   1.3920  2.3447   161.0     7.9    23.0
2023 12 16    04 59 13.0 +05 24 00   1.3867  2.3378   160.5     8.1    23.0
2023 12 17    04 57 41.4 +05 30 33   1.3817  2.3308   160.0     8.3    23.0
...
2023 12 23    04 48 30.8 +06 15 04   1.3579  2.2887   155.3    10.4    23.0
...
2023 12 31    04 36 41.4 +07 27 20   1.3421  2.2318   147.0    13.9    23.1
...
2024 01 15    04 18 20.9 +10 15 22   1.3552  2.1226   129.7    20.9    23.2

A. U. Tomatic                (C) Copyright 2023 MPC           M.P.E.C. 2023-Y10




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