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  • MPEC 2023-T211 : 2009 WW25

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    M.P.E.C. 2023-T211                             Issued 2023 October 13, 14:08 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
    
                                    2009 WW25                                
    
    
                               Revision to MPEC 2009-W72                            
    
    Additional Observations:
         K09W25W  C2013 03 13.48530612 33 34.314-06 48 20.51         22.55GVET211F51
         K09W25W  C2013 03 13.49951912 33 33.077-06 48 12.81         22.77GVET211F51
         K09W25W  C2020 08 11.31061620 52 34.807-15 07 16.87         22.25GVET211F51
         K09W25W  C2020 08 11.32335420 52 33.590-15 07 20.67         22.89GVET211F51
         K09W25W  C2020 08 16.41731720 44 39.903-15 33 38.00         22.31GVET211F52
         K09W25W  C2020 08 16.43040720 44 38.673-15 33 41.72         22.00GVET211F52
         K09W25W  C2020 08 16.44350120 44 37.359-15 33 45.77         22.10GVET211F52
         K09W25W  C2020 08 17.30374220 43 18.161-15 38 09.54         23.44GVET211F51
         K09W25W  C2020 08 17.31469120 43 17.080-15 38 12.29         23.15GVET211F51
         K09W25W  C2020 08 17.32565920 43 16.026-15 38 16.00         22.93GVET211F51
         K09W25W  C2020 08 17.33669920 43 14.956-15 38 19.76         22.37GVET211F51
         K09W25W  C2020 12 03.21695921 53 30.413-10 58 36.00         23.43GVET211F51
         K09W25W  C2020 12 03.22969721 53 32.461-10 58 25.30         23.42GVET211F51
         K09W25W  C2020 12 03.25547821 53 36.552-10 58 04.82         20.91GVET211F51
         K09W25W 7C2023 10 11.15900907 26 41.955+24 11 31.59         21.8 GVET211Z84
         K09W25W 7C2023 10 11.18443407 26 49.713+24 11 12.17               VET211Z84
         K09W25W 7C2023 10 11.20062107 26 54.659+24 10 59.30         21.4 GVET211Z84
         K09W25W 7C2023 10 11.20400307 26 55.682+24 10 56.83         20.8 GVET211Z84
         K09W25W 7C2023 10 11.20770707 26 56.818+24 10 54.23         21.1 GVET211Z84
    
    Observer details:
    F51 Pan-STARRS 1, Haleakala.  Observers J. Bulger, T. Lowe, P. Minguez, A.
        Schultz, I. Smith.  Measurers K. Chambers, T. de Boer, J. Fairlamb, H.
        Gao, M. Huber, C.-C. Lin, E. Magnier, Y. Ramanjooloo, R. Wainscoat, R.
        Weryk.  1.8-m Ritchey-Chretien + CCD.
    F52 Pan-STARRS 2, Haleakala.  Observers J. Bulger, T. Lowe, P. Minguez, A.
        Schultz, I. Smith.  Measurers K. Chambers, T. de Boer, J. Fairlamb, H.
        Gao, M. Huber, C.-C. Lin, E. Magnier, Y. Ramanjooloo, R. Wainscoat, R.
        Weryk.  1.8-m Ritchey-Chretien + CCD.
    Z84 Calar Alto-Schmidt.  Observers R. Kresken, F. Ocana, M. Micheli, L.
        Conversi.  Measurers F. Ocana, R. Kresken, 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
    130313 F51 0.00- 0.00-    231011 Z84 0.03- 0.01-    E2023-R03   -0.02 days
    
    Orbital elements:
    2009 WW25                                                Earth MOID = 0.0948 AU
    Epoch 2023 Sept. 13.0 TT = JDT 2460200.5                Veres                   
    M 343.07627              (2000.0)            P               Q                  
    n   0.35453034     Peri.  156.23902     +0.41687655     -0.90859387             
    a   1.9771234      Node   269.11490     +0.82974980     +0.39202897             
    e   0.4529022      Incl.    1.48465     +0.37111886     +0.14411964             
    P   2.78           H   20.83          G   0.15           U   0                  
    Residuals in seconds of arc
    090917 G96  0.2-  0.1+    091201 H21  0.1+  0.2+    091224 703  0.1-  0.6-
    090917 G96  0.1-  0.4-    091205 H21  0.1-  0.0     091224 703  0.7-  0.0
    090917 G96  0.1+  0.1-    091205 H21  0.1-  0.0     091224 703  1.3-  0.4-
    090917 G96  0.3-  0.1-    091205 H21  0.2-  0.0     100103 H21  0.5+  0.7-
    091014 703  0.7-  0.5-    091205 H21  0.0   0.1-    100103 H21  0.2-  0.7-
    091014 703  0.7-  0.5+    091208 204  0.1-  0.2-    100103 H21  0.0   0.4-
    091014 703  0.2-  0.7+    091208 204  0.2-  0.2-    100106 703  0.7-  0.3+
    091014 703  0.8-  0.4+    091208 204  0.2-  0.3-    100106 703  0.4+  0.2-
    091122 703  0.1+  0.6-    091210 160  0.1-  0.1-    100106 703  0.0   0.4-
    091122 703  0.2-  0.6+    091210 160  0.0   0.1-    100114 H21  0.1-  0.4+
    091122 703  0.3+  1.2-    091210 160  0.2-  0.4-    100114 H21  0.1-  0.3+
    091122 703  0.4-  0.3+    091211 703  1.0-  0.0     100114 H21  0.2-  0.3+
    091122 703  0.2+  0.2-    091211 703  0.8+  0.0     100115 G96  0.3-  0.2+
    091122 703  0.7-  0.8+    091211 703  1.0+  0.2+    100115 G96  0.3+  0.0
    091122 703  0.2+  0.1-    091211 703  0.5-  0.5+    100115 G96  0.1+  0.1-
    091122 H01  0.0   0.3-    091212 H26  0.6+  0.5+    100115 G96  0.2+  0.3+
    091122 H01  0.2+  0.1-    091212 H26  0.6+  0.3+    100201 H21  0.2-  0.5+
    091122 651  0.0   0.3-    091212 H26  0.9+  0.3+    100201 H21  0.1-  0.5+
    091122 651  0.7-  0.2+    091212 H21  0.0   0.2-    100201 H21  0.1-  0.4+
    091122 651  0.6-  0.1+    091212 H21  0.1+  0.0     130313 F51  0.2+  0.1-
    091122 H01  0.2+  0.1-    091212 H21  0.4-  0.1+    130313 F51  0.0   0.2+
    091122 H21  0.3-  0.0     091213 704 (2.6-  2.2+)   200811 F51  0.2-  0.2+
    091122 H01  0.3+  0.0     091213 704  0.7-  1.5+    200811 F51  0.2-  0.4+
    091122 H21  0.6+  0.3+    091213 704  0.8-  0.8+    200816 F52  0.1-  0.2-
    091122 J28  0.0   0.5+    091213 704 (0.7-  2.4+)   200816 F52  0.5+  0.0
    091122 J28  0.7+  0.6+    091216 704  0.0   0.2+    200816 F52  0.1-  0.1-
    091122 J28  1.0+  0.1+    091216 704  0.8+  0.2+    200817 F51  0.3+  0.2-
    091123 932  0.1-  0.1+    091216 704  0.6+  0.1-    200817 F51  0.0   0.5+
    091123 932  0.4+  0.0     091216 704  0.5+  0.9+    200817 F51  0.0   0.3+
    091123 H01  0.2-  0.1+    091217 H21  0.3-  0.3+    200817 F51  0.0   0.1-
    091123 H01  0.1-  0.0     091217 H21  0.0   0.0     201203 F51  0.2-  0.1-
    091123 H01  0.2-  0.0     091217 H21  0.1+  0.0     201203 F51  0.1+  0.3+
    091123 H01  0.1-  0.0     091217 H21  0.1+  0.0     201203 F51  0.4-  0.1-
    091123 926  0.1-  0.1-    091217 H21  0.1+  0.3+    231011 Z84  0.5-  0.1+
    091123 926  0.0   0.2-    091220 G96  0.3+  0.2-    231011 Z84  0.4-  0.2+
    091123 926  0.2-  0.3-    091220 G96  0.0   0.1-    231011 Z84  0.2-  0.2-
    091130 H21  0.0   0.5-    091220 G96  0.1+  0.1-    231011 Z84  0.3-  0.0
    091130 H21  0.4+  0.3-    091224 703  0.1+  0.7-    231011 Z84  0.2-  0.2+
    
    Ephemeris:
    2009 WW25                a,e,i = 1.98, 0.45, 1                   q = 1.0817
    Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
    2023 09 13    04 54 09.0 +25 29 39   0.5804  1.2004    94.5    56.7    22.1
    ...
    2023 09 28    06 15 44.0 +26 04 18   0.5307  1.1402    90.8    61.5    21.9
    ...
    2023 10 06    06 59 27.6 +25 10 42   0.5178  1.1158    88.7    63.6    21.9
    ...
    2023 10 12    07 31 01.1 +24 00 23   0.5134  1.1015    87.4    64.9    21.9
    2023 10 13    07 36 07.5 +23 46 30   0.5130  1.0994    87.2    65.0    21.9
    2023 10 14    07 41 11.0 +23 32 03   0.5128  1.0975    87.0    65.2    21.9
    ...
    2023 10 20    08 10 24.7 +21 55 06   0.5133  1.0882    86.0    65.9    21.9
    ...
    2023 10 28    08 46 07.4 +19 25 38   0.5181  1.0821    85.3    66.2    21.9
    ...
    2023 11 12    09 42 45.8 +14 20 36   0.5339  1.0902    85.8    64.9    22.0
    
    A. U. Tomatic                (C) Copyright 2023 MPC           M.P.E.C. 2023-T211
    


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