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  • MPEC 2023-E20 : 2023 DB2

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    M.P.E.C. 2023-E20                                 Issued 2023 March 2, 11:35 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 DB2                                 
    
    
    Observations:
         K23D02B 1C2023 02 12.51997 12 23 11.86 +12 03 59.3          20.9 GVEE020G96
         K23D02B 1C2023 02 12.52507 12 23 11.97 +12 04 13.0          21.3 GVEE020G96
         K23D02B*KC2023 02 26.80041 12 22 43.02 +25 24 50.0          20.1 GVEE020N87
         K23D02B KC2023 02 26.81274 12 22 42.45 +25 25 38.5          19.4 GVEE020N87
         K23D02B KC2023 02 26.82507 12 22 41.92 +25 26 26.8          19.4 GVEE020N87
         K23D02B KC2023 02 26.84152 12 22 41.20 +25 27 31.5          19.6 GVEE020N87
         K23D02B KC2023 02 26.86208 12 22 40.24 +25 28 52.1          20.1 GVEE020N87
         K23D02B KC2023 02 26.88263 12 22 39.28 +25 30 12.8          19.7 GVEE020N87
         K23D02B KC2023 03 01.41070112 20 56.04 +28 18 46.9          21.0 GVEE020H21
         K23D02B KC2023 03 01.41262912 20 55.94 +28 18 54.2          20.3 GVEE020H21
         K23D02B KC2023 03 01.41765212 20 55.67 +28 19 14.4          20.6 GVEE020H21
         K23D02B KC2023 03 01.76967 12 20 40.71 +28 43 05.6          20.1 GVEE020N88
         K23D02B KC2023 03 01.77602 12 20 40.33 +28 43 31.3          19.5 GVEE020N88
         K23D02B KC2023 03 01.78196 12 20 39.96 +28 43 55.3          19.4 GVEE020N88
         K23D02B KC2023 03 02.02087512 20 28.08 +29 00 09.9          19.4 GXEE020I93
         K23D02B KC2023 03 02.02874712 20 27.68 +29 00 41.7          19.5 GXEE020I93
         K23D02B KC2023 03 02.31665012 20 12.44 +29 20 21.9          20.3 GVEE020H21
         K23D02B KC2023 03 02.31945612 20 12.25 +29 20 33.4          20.7 GVEE020H21
         K23D02B KC2023 03 02.32226312 20 12.07 +29 20 45.1          20.7 GVEE020H21
         K23D02B KC2023 03 02.32591012 20 11.83 +29 20 59.9          20.6 GVEE020H21
    
    Observer details:
    G96 Mt. Lemmon Survey.  Observer A. Serrano.  Measurers B. Gray, D. Rankin, F.
        C. Shelly.  1.5-m reflector + 10K CCD.
    H21 Astronomical Research Observatory, Westfield.  Observer R. Holmes.
        Measurers T. Linder, R. Holmes, L. Horn.  0.76-m f/3.0 astrograph + CCD,
        0.81-m f/4.0 astrograph + CCD.
    I93 St Pardon de Conques.  Observer F. Losse.  0.40-m f/3.7 reflector + CCD.
    N87 Nanshan Station, Xinjiang Observatory.  Observers M. Zhang, G. Sun, W.
        Zhou, Q. Yin, Z. Yang, L. Tang, Z. Chen, X. Liao, X. Gao, G. J. Feng, C.
        H. Bai, A. Esamdin, L. Ma, N. Wang.  Measurer M. Zhang.  1.0-m f/2.2
        reflector + CCD.
    N88 Xingming Observatory #3, Nanshan.  Observers X. Gao, Q. Ye.  Measurers M.
        Zhang, Z. Chen.  0.6-m f/8 Ritchey-Chretien + CCD.
    
    Orbital elements:
    2023 DB2                                                 Earth MOID = 0.2003 AU
    Epoch 2023 Feb. 25.0 TT = JDT 2460000.5                 Veres                   
    M 228.30908              (2000.0)            P               Q                  
    n   0.92910395     Peri.  171.70634     +0.62093581     +0.76946541             
    a   1.0401433      Node   136.50503     -0.73106975     +0.63730719             
    e   0.2316472      Incl.   12.54817     -0.28279981     +0.04198243             
    P   1.06           H   21.76          G   0.15           U   6                  
    Residuals in seconds of arc
    230212 G96  0.1-  0.0     230226 N87  0.8+  1.2+    230302 I93  0.7-  0.6+
    230212 G96  0.1+  0.0     230301 H21  0.2-  0.2+    230302 I93  0.4+  0.1+
    230226 N87  0.9+  1.6+    230301 H21  0.1-  0.2-    230302 H21  0.1+  0.1-
    230226 N87  0.7+  1.5+    230301 H21  0.2+  0.2-    230302 H21  0.0   0.1-
    230226 N87  1.1+  1.2+    230301 N88  0.3+  0.3+    230302 H21  0.0   0.2+
    230226 N87  1.5+  1.2+    230301 N88  0.3+  0.0     230302 H21  0.0   0.1+
    230226 N87  1.2+  1.0+    230301 N88  0.2+  0.3-
    
    Ephemeris:
    2023 DB2                 a,e,i = 1.04, 0.23, 13                  q = 0.7992
    Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
    2023 01 31    12 14 02.7 +04 34 48   0.3888  1.2659   128.9    37.3    21.7
    ...
    2023 02 15    12 24 06.2 +14 01 09   0.3047  1.2445   143.0    28.5    20.9
    ...
    2023 02 23    12 24 16.3 +21 23 54   0.2714  1.2294   148.7    24.7    20.5
    ...
    2023 03 01    12 21 16.1 +27 51 09   0.2535  1.2164   149.8    24.2    20.3
    2023 03 02    12 20 28.6 +28 58 51   0.2511  1.2141   149.6    24.4    20.3
    2023 03 03    12 19 35.9 +30 07 09   0.2489  1.2118   149.3    24.7    20.3
    ...
    2023 03 09    12 12 24.7 +37 01 50   0.2393  1.1970   145.2    28.2    20.3
    ...
    2023 03 17    11 57 28.2 +45 48 02   0.2357  1.1752   135.8    36.2    20.4
    ...
    2023 04 01    11 15 51.6 +57 56 50   0.2480  1.1285   115.6    53.0    20.9
    
    M. P. C. Staff               (C) Copyright 2023 MPC           M.P.E.C. 2023-E20
    


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