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IAU Minor Planet Center

Minor Planet Center

MPEC 2004-X02 : 2002 AV31

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M.P.E.C. 2004-X02                                Issued 2004 Dec. 1, 11:51 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.

                  Supported in part by the Brinson Foundation
             Prepared using the Tamkin Foundation Computer Network

                              MPC@CFA.HARVARD.EDU
          URL http://cfa-www.harvard.edu/iau/mpc.html  ISSN 1523-6714

                                   2002 AV31

                           Revision to MPEC 2002-B02

Additional Observations:
     K02A31V 3C2004 11 26.62979 09 31 22.75 -14 31 23.3          20.2 R EX002F65
     K02A31V 3C2004 11 26.63304 09 31 23.04 -14 31 19.6          20.2 R EX002F65
     K02A31V 3C2004 11 26.63623 09 31 23.32 -14 31 16.2          20.4 R EX002F65
     K02A31V 3C2004 11 30.63122 09 37 35.49 -13 11 13.9          20.2 R EX002F65
     K02A31V 3C2004 11 30.63717 09 37 35.95 -13 11 06.7          20.3 R EX002F65
     K02A31V 3C2004 11 30.64230 09 37 36.35 -13 11 00.4          20.3 R EX002F65

Observer details:
F65 Haleakala-Faulkes Telescope North.  Observers F. Hormuth, L. Kurtze,
    K. Sonnenberg.  Measurer F. Hormuth.  2-m reflector + CCD.

First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
041126 F65 0.09- 0.13-    041130 F65 0.10- 0.12-    MPO 66260   +0.091 day

Orbital elements:
2002 AV31
Epoch 2005 Jan. 30.0 TT = JDT 2453400.5                 MPC
M  76.24690              (2000.0)            P               Q
n   0.65632233     Peri.  267.14009     +0.86493873     -0.44854598
a   1.3113680      Node   119.41571     +0.49756743     +0.82505277
e   0.2499561      Incl.   14.97869     -0.06563271     +0.34364871
P   1.50           H   20.4           G   0.15           U   3
Residuals in seconds of arc
020114 704  0.4+  0.4-    020115 046  0.6-  0.7+    020212 644  0.1-  0.7+
020114 704  0.3+  0.6-    020118 649  0.3+  0.3+    020212 644  0.1-  0.3+
020114 704  0.1+  0.1+    020118 649  0.1+  0.5+    020311 696  0.1-  0.3-
020114 704  0.3+  0.3-    020118 649  1.0+  0.3-    020311 696  0.2-  0.6-
020114 704  0.2-  0.1-    020122 649  0.0   0.7-    041126 F65  0.3-  0.0
020115 649  0.4+  0.1+    020122 649  0.3-  0.7-    041126 F65  0.2-  0.0
020115 649  0.4+  0.1+    020209 413  0.2+  0.4+    041126 F65  0.2-  0.2-
020115 711  0.7-  0.2-    020209 413  0.1+  0.6-    041130 F65  0.3+  0.3+
020115 649  0.2+  0.0     020209 413  0.1-  0.2-    041130 F65  0.1+  0.0
020115 711 (0.2+  2.1-)   020210 715 (5.6+  4.5+)   041130 F65  0.1+  0.1-
020115 711  0.6-  0.2+    020210 715 (5.8+  4.5+)
020115 046  0.6-  0.4+    020212 644  0.2-  0.8+

Ephemeris:
2002 AV31                a,e,i = 1.31, 0.25, 15                  q = 0.9836
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2004 12 01    09 38.13   -13 03.3    0.362    1.090    96.7    64.0    20.6
2004 12 11    09 50.73   -09 02.2    0.345    1.124   105.0    57.8    20.4
2004 12 21    09 58.30   -03 46.0    0.326    1.161   115.4    50.0    20.1
2004 12 31    09 59.69   +03 03.4    0.309    1.199   128.1    40.2    19.8
2005 01 10    09 53.83   +11 21.5    0.302    1.238   143.1    28.5    19.5
2005 01 20    09 40.86   +20 16.6    0.309    1.277   158.4    16.5    19.3
2005 01 30    09 23.27   +28 15.9    0.336    1.315   167.0     9.7    19.3
2005 02 09    09 05.34   +34 07.7    0.382    1.351   159.8    14.6    19.8
2005 02 19    08 51.57   +37 39.4    0.445    1.387   148.4    21.9    20.4
2005 03 01    08 44.40   +39 19.7    0.520    1.420   138.0    27.8    21.0
2005 03 11    08 43.89   +39 43.8    0.605    1.452   128.9    32.2    21.5
2005 03 21    08 49.11   +39 17.4    0.698    1.482   121.0    35.2    21.9

Timothy B. Spahr             (C) Copyright 2004 MPC           M.P.E.C. 2004-X02

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