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  • MPEC 2023-M142 : 2023 MU4

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    M.P.E.C. 2023-M142                                Issued 2023 June 26, 10:39 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
    
                                    2023 MU4                                 
    
    
    Observations:
         K23M04U 1C2023 06 23.43595 23 12 07.92 +06 33 54.6          21.9 GVEM142G96
         K23M04U 1C2023 06 23.44067 23 12 09.78 +06 33 47.2          21.4 GVEM142G96
         K23M04U*1C2023 06 24.39969823 18 26.878+06 09 07.45         20.89GVEM142G96
         K23M04U 1C2023 06 24.40441423 18 28.642+06 09 00.22         21.21GVEM142G96
         K23M04U 1C2023 06 24.40913623 18 30.503+06 08 51.94         21.00GVEM142G96
         K23M04U KC2023 06 24.42436523 18 36.306+06 08 28.61         21.22GVEM142I52
         K23M04U KC2023 06 24.42617223 18 36.961+06 08 26.27         20.72GVEM142I52
         K23M04U KC2023 06 24.42797423 18 37.652+06 08 23.32         20.82GVEM142I52
         K23M04U KC2023 06 24.42977923 18 38.344+06 08 20.15         21.07GVEM142I52
         K23M04U 1C2023 06 25.42785123 25 05.034+05 42 12.89         21.52GVEM142G96
         K23M04U 1C2023 06 25.42864823 25 05.380+05 42 11.63         21.70GVEM142G96
         K23M04U 1C2023 06 25.42944323 25 05.624+05 42 09.97         21.53GVEM142G96
         K23M04U 1C2023 06 25.43023623 25 05.930+05 42 08.89         21.10GVEM142G96
         K23M04U KB2023 06 26.34462 23 30 55.57 +05 17 51.0          21.6 rZEM142H36
         K23M04U KC2023 06 26.36588823 31 03.17 +05 17 15.3                uEM142H21
         K23M04U KB2023 06 26.36988 23 31 04.82 +05 17 10.3          21.0 rZEM142H36
         K23M04U KC2023 06 26.37148023 31 05.24 +05 17 06.4          21.2 VuEM142H21
         K23M04U  C2023 06 26.37199723 31 05.940+05 17 07.37         21.0 GVEM142H01
         K23M04U  C2023 06 26.37677323 31 07.709+05 17 00.20         20.7 GVEM142H01
         K23M04U KC2023 06 26.37688423 31 07.17 +05 16 58.1          21.1 VuEM142H21
         K23M04U  C2023 06 26.39096023 31 12.967+05 16 37.44         21.5 GVEM142H01
         K23M04U KB2023 06 26.39138 23 31 12.77 +05 16 35.7          21.1 rZEM142H36
         K23M04U KC2023 06 26.39301623 31 13.865+05 16 34.50         21.15GVEM142I52
         K23M04U  C2023 06 26.39476323 31 14.386+05 16 31.23         21.2 GVEM142H01
         K23M04U KC2023 06 26.39555823 31 14.797+05 16 30.36         21.05GVEM142I52
         K23M04U KC2023 06 26.39810623 31 15.722+05 16 27.01         21.41GVEM142I52
    
    Observer details:
    G96 Mt. Lemmon Survey.  Observer J. B. Fazekas.  Measurers B. Gray, D. Rankin,
        F. C. Shelly, E. J. Christensen, 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, A. Serrano, K. W. Wierzchos.  1.5-m
        reflector + 10K CCD.
    H01 Magdalena Ridge Observatory, Socorro.  Observers W. H. Ryan, E. V. Ryan.
        Measurer W. H. Ryan.  2.4-m f/8.9 Ritchey-Chretien + CCD.
    H21 Astronomical Research Observatory, Westfield.  Observer R. Holmes.
        Measurers T. Linder, R. Holmes, L. Horn.  0.76-m f/3.0 astrograph + CCD.
    H36 Sandlot Observatory, Scranton.  Observer G. Hug.  0.56-m f/4.2 .56 meter
        reflector + CMOS.
    I52 Steward Observatory, Mt. Lemmon Station.  Observer R. A. Kowalski.
        Measurers E. J. Christensen, 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, A. Serrano, F. C. Shelly,
        K. W. Wierzchos.  1.0-m prime focus + CCD.
    
    Orbital elements:
    2023 MU4                                                 Earth MOID = 0.0711 AU
    Epoch 2023 Feb. 25.0 TT = JDT 2460000.5                 Veres                   
    M 332.12887              (2000.0)            P               Q                  
    n   0.21947627     Peri.  177.68520     +0.41049648     +0.88921027             
    a   2.7219345      Node   116.49224     -0.84020125     +0.45491544             
    e   0.6003747      Incl.   13.04300     -0.35433671     -0.04854940             
    P   4.49           H   21.76          G   0.15           U   9                  
    Residuals in seconds of arc
    230623 G96  0.3-  0.0     230625 G96  0.1-  0.0     230626 H01  0.1-  0.2+
    230623 G96  0.3+  0.2-    230625 G96  0.6+  0.0     230626 H21  0.8-  0.3+
    230624 G96  0.0   0.5+    230625 G96  0.2-  0.4-    230626 H01  0.2-  0.0
    230624 G96  0.5-  0.5+    230625 G96  0.1-  0.2-    230626 H36  0.4-  0.9+
    230624 G96  0.4+  0.5-    230626 H36  1.9+  1.8+    230626 I52  0.3+  0.3-
    230624 I52  0.4+  0.3-    230626 H21  0.3+  0.1-    230626 H01  0.1-  0.2-
    230624 I52  0.1-  0.2+    230626 H36  0.1-  1.2+    230626 I52  0.1+  0.4-
    230624 I52  0.1-  0.0     230626 H21  0.3+  0.1-    230626 I52  0.2-  0.3+
    230624 I52  0.0   0.3-    230626 H01  0.1+  0.2-
    
    Ephemeris:
    2023 MU4                 a,e,i = 2.72, 0.60, 13                  q = 1.0878
    Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
    2023 05 27    20 10 33.1 +12 09 34   0.3267  1.1789   112.8    52.4    21.6
    ...
    2023 06 11    21 46 32.4 +10 48 39   0.2752  1.1201   105.4    60.9    21.4
    ...
    2023 06 19    22 42 11.2 +08 20 55   0.2664  1.1003   101.4    64.8    21.4
    ...
    2023 06 25    23 22 18.6 +05 53 44   0.2681  1.0914    99.1    66.9    21.4
    2023 06 26    23 28 42.8 +05 27 20   0.2690  1.0904    98.8    67.1    21.5
    2023 06 27    23 35 01.0 +05 00 36   0.2701  1.0896    98.5    67.3    21.5
    ...
    2023 07 03    00 10 31.3 +02 16 42   0.2799  1.0878    97.2    68.0    21.6
    ...
    2023 07 11    00 51 01.6 -01 17 15   0.2997  1.0938    96.9    67.3    21.7
    ...
    2023 07 26    01 46 13.4 -07 12 33   0.3476  1.1297   100.1    62.3    21.9
    
    M. P. C. Staff               (C) Copyright 2023 MPC           M.P.E.C. 2023-M142
    


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