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  • MPEC 2003-D13 : 2001 WN5

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    M.P.E.C. 2003-D13                                Issued 2003 Feb. 24, 02:13 UT
    
         The Minor Planet Electronic Circulars contain information on unusual
             minor planets and routine data on comets.  They are published
       on behalf of Commission 20 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 http://cfa-www.harvard.edu/iau/mpc.html  ISSN 1523-6714
    
                                       2001 WN5
    
                               Revision to MPEC 2002-B44
    
    Additional Observations:
         K01W05N  C2003 02 23.28161 11 18 44.23 +01 13 07.2                      715
         K01W05N  C2003 02 23.28945 11 18 43.62 +01 13 10.2                      715
         K01W05N  C2003 02 23.29804 11 18 42.89 +01 13 14.1                      715
         K01W05N FC2003 02 23.98087 11 17 52.29 +01 17 56.8          20.9 R      599
         K01W05N FC2003 02 23.99069 11 17 51.34 +01 18 00.6          20.6 R      599
         K01W05N FC2003 02 24.00053 11 17 50.78 +01 18 03.6          20.8 R      599
         K01W05N FC2003 02 24.01034 11 17 49.88 +01 18 09.9          20.7 R      599
    
    Observer details:
    599 Campo Imperatore-CINEOS.  Observers A. Boattini, N. Napoleone, F. Bernardi,
        E. Palomba, A. Di Paola.  0.60-m f/3 Schmidt + CCD.
    715 Journada Observatory.  Observer D. S. Dixon.  0.4-m f/10
        Schmidt-Cassegrain + CCD.
    
    First and last observations above in comparison with prediction:
    Residuals in seconds of arc, reference and Delta-T
    030223 715 31.6- 14.4+    030224 599 31.4- 15.3+    MPO 26054   +0.032 day
    
    Orbital elements:
    2001 WN5                                                             PHA 0.000
    Epoch 2003 June 10.0 TT = JDT 2452800.5                 MPC
    M 277.30947              (2000.0)            P               Q
    n   0.44044930     Peri.   44.17629     +0.78760819     +0.61527888
    a   1.7108244      Node   277.82244     -0.57422559     +0.71334921
    e   0.4671298      Incl.    1.92307     -0.22346883     +0.33550678
    P   2.24           H   18.3           G   0.15           U   3
    Residuals in seconds of arc
    010414 608  0.2+  0.2+    011204 413  0.7+  0.3+    011216 422  1.1+  0.1-
    010414 608  0.3-  0.2+    011204 413  1.5+  0.9+    011216 422  0.9+  0.1+
    011120 699  0.4+  0.7-    011204 413  0.1+  0.9+    011216 422  0.6+  0.0
    011120 699  1.0+  0.4+    011204 413  0.8+  1.3+    011216 422  2.1+  0.2+
    011120 699  0.0   0.1+    011204 413  1.3+  1.3+    011217 691  0.0   0.2-
    011120 699  0.1-  0.1-    011204 413  0.3+  1.0+    011217 715  1.0-  1.5-
    011120 046  1.9+  0.5-    011206 649  1.0+  0.2-    011217 691  0.1+  0.1+
    011120 046  0.7+  0.2+    011206 649  0.2+  1.0+    011217 715  1.0-  1.2-
    011120 557  1.3-  0.3-    011206 649  0.7+  0.7+    011217 715  0.7-  0.9-
    011120 557  0.5-  0.2-    011207 658  0.1+  0.4+    011217 691  1.5+  0.3+
    011120 557  0.3+  0.4+    011207 658  0.1-  0.3+    011227 715  0.7-  1.3-
    011120 557  1.8-  0.4+    011207 658  0.3+  0.2+    011227 715  1.0-  1.1-
    011120 557  0.4-  0.3+    011210 715  1.2-  0.6-    011227 715  0.1-  1.6-
    011120 557  0.2-  1.2+    011210 715  0.2-  1.0-    020109 696  1.1+  0.2+
    011120 557  1.0+  0.0     011210 715  0.6-  1.2-    020109 696  0.9+  0.1+
    011121 918  0.3+  0.5-    011210 587  1.4+  1.0+    020209 291  1.3+  0.2+
    011121 918  0.8-  0.5+    011210 587  0.4+  0.3+    020209 291  2.9+  0.8+
    011121 918  1.1-  0.7-    011212 104 (5.2-  2.5-)   020209 291  0.2+  1.5+
    011121 918  0.2+  0.2+    011212 104  2.9-  0.9+    030223 715  0.4-  0.3+
    011122 711  0.1-  1.1+    011212 104  0.0   0.0     030223 715  0.6-  0.0
    011122 711  2.0+  0.3+    011212 104  2.1+  0.6-    030223 715  1.8-  0.4+
    011122 711  0.3-  0.3+    011212 104  2.4-  0.2-    030223 599  2.1+  0.4+
    011202 715  0.3+  0.1-    011213 620  0.4-  0.3-    030223 599  0.9-  0.0
    011202 715  1.2-  0.6-    011213 620  0.7-  1.2+    030224 599  2.1+  1.1-
    011202 715  1.5-  0.9-    011214 946  2.5-  1.1-    030224 599  0.1-  1.1+
    
    Ephemeris:
    2001 WN5                 a,e,i = 1.71, 0.47, 2                   q = 0.9116
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
    2003 02 20    11 22.65   +00 51.6    1.422    2.374   159.6     8.3    21.5
    2003 03 02    11 10.01   +02 02.7    1.362    2.348   172.6     3.1    21.1
    2003 03 12    10 56.06   +03 25.1    1.332    2.320   172.3     3.3    21.1
    2003 03 22    10 42.39   +04 48.9    1.331    2.289   159.1     8.9    21.3
    2003 04 01    10 30.52   +06 04.3    1.357    2.257   146.1    14.3    21.5
    2003 04 11    10 21.61   +07 04.2    1.406    2.221   133.9    19.0    21.7
    2003 04 21    10 16.23   +07 44.8    1.471    2.184   122.6    22.8    21.9
    
    Gareth V. Williams           (C) Copyright 2003 MPC           M.P.E.C. 2003-D13
    

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