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  • MPEC 2024-D40 : 2023 BW9

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    M.P.E.C. 2024-D40                             Issued 2024 February 17, 14:11 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 BW9                                 
    
    
                               Revision to MPEC 2023-C27                            
    
    Additional Observations:
         K23B09W 7C2024 02 12.84183201 39 14.212+29 39 36.48         22.1 GVED040Z84
         K23B09W 7C2024 02 12.86175401 39 22.254+29 41 20.11         22.3 GVED040Z84
         K23B09W 7C2024 02 12.88201301 39 30.419+29 43 04.84               VED040Z84
         K23B09W KC2024 02 16.09905302 00 36.947+33 56 35.88         21.89GVED040V06
         K23B09W KC2024 02 16.10572602 00 39.424+33 57 03.78         21.99GVED040V06
         K23B09W KC2024 02 16.11240002 00 41.915+33 57 31.79         21.99GVED040V06
    
    Observer details:
    V06 Catalina Sky Survey-Kuiper.  Observer J. B. Fazekas.  Measurers T. Beuden,
        V. F. Carvajal, 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.  1.55-m
        reflector + 1K CCD.
    Z84 Calar Alto-Schmidt.  Observers F. Ocana, R. Kresken, M. Micheli, L.
        Conversi.  Measurers F. Ocana, M. Micheli.  0.8-m f/3 Schmidt + CCD.
    
    First and last observations above in comparison with prediction:
    Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
    240212 Z84 0.00+ 0.14+    240216 V06 0.00+ 0.13+    MPO736076   -0.02 days
    
    Orbital elements:
    2023 BW9                                                 Earth MOID = 0.1053 AU
    Epoch 2024 Mar. 31.0 TT = JDT 2460400.5                 Veres                   
    M 197.81668              (2000.0)            P               Q                  
    n   1.82944346     Peri.  216.06721     +0.79810490     +0.39266017             
    a   0.6620997      Node   114.45367     -0.36415024     +0.91862911             
    e   0.5857168      Incl.   30.13449     -0.48002413     -0.04402904             
    P   0.54           H   21.68          G   0.15           U   2                  
    Residuals in seconds of arc
    230130 G96  0.1+  0.6-    230131 H01  0.0   0.0     230204 I52  0.1-  0.5+
    230130 G96  0.3-  0.5+    230201 204  0.3+  0.0     230204 I52  0.1+  0.4-
    230130 G96  0.2-  0.1+    230201 204  0.2+  0.4-    230209 I52  0.2-  0.1-
    230130 G96  0.1-  0.3+    230201 H21  0.1-  0.1+    230209 I52 (1.3-  0.9-)
    230131 L01  0.8+  0.0     230201 H21  0.3+  0.5+    230209 I52  0.6+  0.0
    230131 L01  0.3-  0.1-    230201 H21  0.3+  0.3+    230209 I52  0.6-  0.3+
    230131 L01  0.2-  0.5-    230201 H36  0.1-  1.6-    240212 Z84  0.2+  0.1+
    230131 L01  0.1+  0.5-    230201 H36  0.2+  0.8+    240212 Z84  0.1+  0.2+
    230131 L01  0.3-  0.4-    230203 H21  0.2-  0.0     240212 Z84  0.4-  0.1-
    230131 H01  0.1-  0.1-    230203 H21  0.3-  0.3+    240216 V06  0.1-  0.0
    230131 H01  0.1-  0.1+    230203 H21  0.0   0.2+    240216 V06  0.0   0.1-
    230131 H01  0.1-  0.1+    230204 I52  0.0   0.5-    240216 V06  0.2+  0.0
    
    Ephemeris:
    2023 BW9                 a,e,i = 0.66, 0.59, 30                  q = 0.2743
    Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
    2024 01 18    22 11 13.9 -24 48 49   0.3435  0.7129    31.3   134.2    24.8
    ...
    2024 02 02    00 16 42.0 +08 01 53   0.2692  0.8595    54.9   110.2    22.7
    ...
    2024 02 10    01 19 14.8 +25 06 52   0.3035  0.9190    68.3    93.8    22.2
    ...
    2024 02 16    02 00 00.2 +33 49 34   0.3492  0.9558    74.5    84.9    22.3
    2024 02 17    02 06 15.1 +34 58 17   0.3578  0.9613    75.3    83.6    22.3
    2024 02 18    02 12 20.9 +36 02 30   0.3666  0.9667    75.9    82.5    22.3
    ...
    2024 02 24    02 45 57.8 +41 08 35   0.4220  0.9951    78.5    77.0    22.5
    ...
    2024 03 03    03 24 05.1 +45 27 38   0.4990  1.0235    79.3    72.1    22.7
    ...
    2024 03 18    04 21 46.2 +49 36 32   0.6366  1.0491    76.5    67.3    23.2
    
    A. U. Tomatic                (C) Copyright 2024 MPC           M.P.E.C. 2024-D40
    


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