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    • MPEC 2023-M56 : 2023 MU

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    M.P.E.C. 2023-M56                                 Issued 2023 June 20, 10:36 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 MU                                 


Observations:
     K23M00U* C2023 06 17.28207814 21 58.281-38 58 51.98         20.09wXEM056F52
     K23M00U  C2023 06 17.29161814 21 45.131-38 58 18.04         20.22wXEM056F52
     K23M00U  C2023 06 17.30117514 21 31.959-38 57 43.59         20.13wXEM056F52
     K23M00U  C2023 06 17.31071214 21 18.793-38 57 08.79         19.88wXEM056F52
     K23M00U |C2023 06 17.95584 14 06 35.88 -38 10 36.3          20.0 VuEM056807
     K23M00U |C2023 06 17.96074 14 06 28.61 -38 10 14.7          19.9 VuEM056807
     K23M00U |C2023 06 17.96564 14 06 21.25 -38 09 51.9          20.3 VuEM056807
     K23M00U KC2023 06 18.74297 13 46 43.87 -36 57 56.6                VEM056M21
     K23M00U KC2023 06 18.76518 13 46 07.14 -36 55 35.5          20.1 GVEM056M21
     K23M00U $C2023 06 18.89106013 42 43.064-36 43 12.77         20.3 GVEM056J04
     K23M00U KB2023 06 19.01139013 39 24.344-36 27 42.25         19.1 GXEM056Y05
     K23M00U KB2023 06 19.01674913 39 15.242-36 27 03.52         19.9 GXEM056Y05
     K23M00U KB2023 06 19.02202013 39 06.228-36 26 24.33         18.7 GXEM056Y05
     K23M00U KB2023 06 19.95056713 12 32.394-34 15 52.36         19.7 GXEM056Y05
     K23M00U KB2023 06 19.95744213 12 19.517-34 14 44.02               XEM056Y05

Observer details:
807 Cerro Tololo Observatory, La Serena.  Observers T. Linder, R. Holmes, L.
    Horn.  0.61-m f/6.5 Dall-Kirkham Astrograph + CCD.
F52 Pan-STARRS 2, Haleakala.  Observers J. Bulger, T. Lowe, P. Minguez, A.
    Schultz, I. Smith.  Measurers K. Chambers, T. de Boer, J. Bulger, J.
    Fairlamb, H. Gao, M. Huber, C.-C. Lin, T. Lowe, E. Magnier, P. Minguez, Y.
    Ramanjooloo, A. Schultz, I. Smith, R. Wainscoat, R. Weryk.  1.8-m Ritchey-
    Chretien + CCD.
J04 ESA Optical Ground Station, Tenerife.  Observers D. Abreu, F. Ocana, M.
    Micheli, L. Conversi.  Measurers F. Ocana, M. Micheli, R. Kresken, A.
    Knofel, M. Busch.  1.0-m f/4.4 reflector + CCD.
M21 Schiaparelli Southern Observatory, Hakos.  Observers A. Aletti, F.
    Bellini, L. Buzzi, G. Galli.  Measurer L. Buzzi.  0.36-m f/8.4 reflector +
    CCD.
Y05 SONEAR Wykrota-CEAMIG, Serra da Piedade.  Observer C. Jacques.  0.45-m
    f/2.9 reflector + CMO.

Orbital elements:
2023 MU                                                  Earth MOID = 0.0172 AU
Epoch 2023 Feb. 25.0 TT = JDT 2460000.5                 Veres                   
M 250.27970              (2000.0)            P               Q                  
n   0.62792564     Peri.   80.35015     +0.99519958     +0.01293410             
a   1.3506119      Node   278.86291     -0.05177542     +0.91073460             
e   0.5005676      Incl.    5.63438     +0.08304875     +0.41278954             
P   1.57           H   24.01          G   0.15           U   9                  
Residuals in seconds of arc
230617 F52  0.2-  0.4+    230617 807  0.3+  0.4-    230619 Y05  0.1+  0.2+
230617 F52  0.2-  0.3+    230617 807  0.2-  0.1+    230619 Y05  0.4+  0.4-
230617 F52  0.1-  0.3+    230618 M21  0.3-  0.3+    230619 Y05  0.1-  0.0
230617 F52  0.1+  0.3+    230618 M21  0.0   0.0     230619 Y05  0.5+  0.0
230617 807  0.0   0.1+    230618 J04  0.0   0.0     230619 Y05  0.6+  0.0

Ephemeris:
2023 MU                  a,e,i = 1.35, 0.50, 6                   q = 0.6745
Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
2023 05 21    17 08 09.6 -37 05 16   0.2994  1.2907   155.7    18.8    22.9
...
2023 06 05    16 32 25.3 -39 42 49   0.1630  1.1708   162.4    15.2    21.3
...
2023 06 13    15 32 19.4 -40 41 22   0.1001  1.1040   151.0    26.5    20.4
...
2023 06 19    13 39 48.5 -36 28 33   0.06146 1.0531   125.7    51.6    20.0
2023 06 20    13 11 06.3 -34 07 12   0.05664 1.0445   118.7    58.6    20.0
2023 06 21    12 39 47.4 -30 52 44   0.05263 1.0360   110.7    66.6    20.0
...
2023 06 27    09 36 49.6 +01 45 33   0.05331 0.9847    52.1   125.5    22.9
...
2023 07 05    07 43 37.9 +23 23 09   0.1021  0.9168    11.4   167.3    33.5
...
2023 07 20    06 46 31.6 +30 30 07   0.2330  0.7982    18.2   156.6    30.3

M. P. C. Staff               (C) Copyright 2023 MPC           M.P.E.C. 2023-M56

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