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  • MPEC 2023-U214 : 2022 UP20

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    M.P.E.C. 2023-U214                             Issued 2023 October 23, 14:23 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@CFA.HARVARD.EDU
                URL https://www.minorplanetcenter.net/    ISSN 1523-6714
    
                                    2022 UP20                                
    
    
                               Revision to MPEC 2022-U394                           
    
    Additional Observations:
         K22U20P KC2023 10 20.43442604 26 22.456+54 42 42.52         21.08GVEU214I52
         K22U20P KC2023 10 20.43801504 26 20.288+54 41 57.19         20.40GVEU214I52
         K22U20P KC2023 10 22.35422504 11 00.107+47 29 09.71         20.41GVEU214I52
         K22U20P KC2023 10 22.35763204 10 58.408+47 28 20.75         21.25GVEU214I52
         K22U20P KC2023 10 22.36104004 10 56.680+47 27 31.68         21.16GVEU214I52
         K22U20P KC2023 10 22.36444704 10 54.966+47 26 42.54         21.27GVEU214I52
    
    Observer details:
    I52 Steward Observatory, Mt. Lemmon Station.  Observer J. B. Fazekas.
        Measurers 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, D. Rankin, R. L. Seaman, F. C. Shelly, K. W. Wierzchos.  1.0-m
        prime focus + CCD.
    
    First and last observations above in comparison with prediction:
    Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
    231020 I52 0.41+ 0.33+    231022 I52 0.48+ 0.27+    MPO718913   +0.09 days
    
    Orbital elements:
    2022 UP20                                                Earth MOID = 0.0566 AU
    Epoch 2023 Sept. 13.0 TT = JDT 2460200.5                Veres                   
    M  61.52649              (2000.0)            P               Q                  
    n   0.98220659     Peri.   59.48715     +0.07323037     +0.98198411             
    a   1.0023071      Node   216.01988     -0.98606708     +0.04513277             
    e   0.1356492      Incl.   17.23070     -0.14936206     +0.18349454             
    P   1.00           H   25.09          G   0.15           U   3                  
    Residuals in seconds of arc
    221028 F52  0.2-  0.1-    221029 104  0.4+  0.1-    221029 F52  0.3+  0.6+
    221028 F52  0.1-  0.4+    221029 204  0.1+  0.4-    221030 K63  0.2-  0.5+
    221028 F52  0.1-  0.2-    221029 204  0.1-  0.1-    221030 K63  0.3+  1.7+
    221028 F51  0.2+  0.1-    221029 H21  0.2-  0.7-    231020 I52  0.0   0.0
    221028 F51  0.1+  0.4+    221029 H21  0.2+  0.2+    231020 I52  0.1-  0.2+
    221029 L01  0.3+  0.2+    221029 H21  0.3-  0.2+    231022 I52  0.2-  0.4+
    221029 L01  0.2-  0.4-    221029 654  0.0   0.2-    231022 I52  0.0   0.2+
    221029 L01  0.2+  0.7-    221029 654  0.0   0.2-    231022 I52  0.0   0.0
    221029 104  0.1+  0.0     221029 654  0.0   0.2-    231022 I52  0.2+  0.3-
    221029 104  0.3-  0.4-    221029 F52  0.0   0.1-
    
    Ephemeris:
    2022 UP20                a,e,i = 1.00, 0.14, 17                  q = 0.8663
    Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
    2023 09 23    12 06 41.2 +76 21 26   0.1798  0.9763    76.1    93.6    24.6
    ...
    2023 10 08    07 51 02.2 +78 19 22   0.1175  1.0114    92.5    80.8    23.3
    ...
    2023 10 16    05 14 58.4 +67 27 08   0.08658 1.0295   109.7    65.8    22.2
    ...
    2023 10 22    04 13 36.7 +48 53 09   0.07012 1.0426   130.8    46.2    21.2
    2023 10 23    04 06 20.2 +44 50 31   0.06845 1.0448   135.1    42.2    21.0
    2023 10 24    03 59 40.1 +40 34 48   0.06720 1.0469   139.5    38.1    20.9
    ...
    2023 10 30    03 29 15.5 +13 41 06   0.06920 1.0592   161.9    17.0    20.3
    ...
    2023 11 07    03 04 30.3 -12 03 37   0.09376 1.0746   151.5    26.1    21.3
    ...
    2023 11 22    02 42 34.1 -29 26 12   0.1678  1.0995   128.2    44.9    23.1
    
    A. U. Tomatic                (C) Copyright 2023 MPC           M.P.E.C. 2023-U214
    


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