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IAU Minor Planet Center

Minor Planet Center

MPEC 2008-A69 : 2008 AA31

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M.P.E.C. 2008-A69                                Issued 2008 Jan. 14, 15:22 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://www.cfa.harvard.edu/iau/mpc.html  ISSN 1523-6714

                                   2008 AA31

Observations:
     K08A31A* C2008 01 12.40998 11 52 25.32 +23 15 41.7          17.9 V EA069703
     K08A31A  C2008 01 12.41593 11 52 21.97 +23 13 27.8          18.0 V EA069703
     K08A31A  C2008 01 12.42192 11 52 18.62 +23 11 12.9          17.8 V EA069703
     K08A31A  C2008 01 12.42788 11 52 15.27 +23 08 59.0          18.0 V EA069703
     K08A31A  C2008 01 12.45559 11 51 59.68 +22 58 37.6          17.7 V EA069703
     K08A31A  C2008 01 12.45599 11 51 59.47 +22 58 29.1          17.9 V EA069703
     K08A31A  C2008 01 12.45641 11 51 59.18 +22 58 19.7          17.6 V EA069703
     K08A31A  C2008 01 12.45683 11 51 58.96 +22 58 10.1          17.8 V EA069703
     K08A31A  C2008 01 12.51214 11 51 28.00 +22 37 36.5          18.3 V EA069703
     K08A31A  C2008 01 12.51256 11 51 27.75 +22 37 27.8          17.9 V EA069703
     K08A31A  C2008 01 12.51297 11 51 27.54 +22 37 18.4          18.2 V EA069703
     K08A31A  C2008 01 12.51340 11 51 27.28 +22 37 08.6          17.9 V EA069703
     K08A31A  C2008 01 12.57374 11 51 09.67 +22 19 59.2          18.4 V EA069F84
     K08A31A  C2008 01 12.58893 11 51 01.25 +22 14 32.4          18.6 V EA069F84
     K08A31A  C2008 01 12.94840 11 49 00.38 +20 05 10.8          18.6 V EA069A74
     K08A31A  C2008 01 12.95472 11 48 57.96 +20 03 13.1          18.2 V EA069A74
     K08A31A  C2008 01 12.96129 11 48 55.49 +20 01 10.9          18.6 V EA069A74
     K08A31A  C2008 01 12.96721 11 48 53.20 +19 59 20.2          18.7 V EA069A74
     K08A31A  C2008 01 12.97356 11 48 50.77 +19 57 23.1          18.3 V EA069A74
     K08A31A  C2008 01 12.98052 11 48 48.06 +19 55 13.5          18.6 V EA069A74
     K08A31A  C2008 01 12.98496 11 48 46.34 +19 53 50.5          18.1 V EA069A74
     K08A31A  C2008 01 13.05435 11 48 18.44 +19 32 39.4          18.0 V EA069A17
     K08A31A  C2008 01 13.05818 11 48 16.84 +19 31 29.4          18.0 V EA069A17
     K08A31A  C2008 01 13.06191 11 48 15.29 +19 30 21.6          17.9 V EA069A17
     K08A31A  C2008 01 13.38784 11 46 34.98 +17 56 25.2          18.0 R EA069854
     K08A31A  C2008 01 13.39063 11 46 33.89 +17 55 37.8          18.1 R EA069854
     K08A31A  C2008 01 13.39341 11 46 32.75 +17 54 54.0          18.1 R EA069854
     K08A31A  C2008 01 14.01351 11 43 44.90 +15 16 31.6          18.5 V EA069A44
     K08A31A  C2008 01 14.01666 11 43 43.94 +15 15 48.9          19.2 V EA069A44
     K08A31A  C2008 01 14.01960 11 43 42.97 +15 15 08.6          18.8 V EA069A44
     K08A31A  C2008 01 14.02611 11 43 41.03 +15 13 38.9          19.3 V EA069A44
     K08A31A  C2008 01 14.02925 11 43 40.09 +15 12 57.0          18.3 V EA069A44
     K08A31A  C2008 01 14.20850 11 42 42.44 +14 32 55.6          18.5 R EA069461
     K08A31A  C2008 01 14.21026 11 42 41.92 +14 32 32.0                 EA069461
     K08A31A  C2008 01 14.21206 11 42 41.38 +14 32 08.3                 EA069461
     K08A31A  C2008 01 14.21437 11 42 40.72 +14 31 37.6                 EA069461

Observer details:
461 University of Szeged, Piszkesteto Stn. (Konkoly).  Observer K. Sarneczky.
    0.60-m Schmidt + CCD.
703 Catalina Sky Survey.  Observer R. E. Hill.  Measurers E. C. Beshore,
    A. Boattini, G. J. Garradd, A. R. Gibbs, A. D. Grauer, R. E. Hill,
    R. A. Kowalski, S. M. Larson, R. H. McNaught.  0.68-m Schmidt + CCD.
854 Sabino Canyon Observatory, Tucson.  Observer J. E. McGaha.  0.36-m f/10.0
    Schmidt-Cassegrain + CCD.
A17 Guidestar Observatory, Weinheim.  Observers M. Emmerich, S. Melchert.
    0.36-m f/6 Schmidt-Cassegrain + CCD.
A44 Altschwendt.  Observer W. Ries.  0.45-m f/3.6 reflector + CCD.
A74 Bergen-Enkheim Observatory.  Observer U. Suessenberger.  0.36-m f/4.6
    Schmidt-Cassegrain + CCD.
F84 Hibiscus Observatory, Punaauia.  Observer J. C. Pelle.  0.35-m f/2.0
    Schmidt + CCD.

Orbital elements:
2008 AA31                                                Earth MOID = 0.0130 AU
Epoch 2007 Oct. 27.0 TT = JDT 2454400.5                 MPC
M 344.36196              (2000.0)            P               Q
n   0.24638677     Peri.  152.52935     -0.08187908     -0.99572821
a   2.5199454      Node   302.13870     +0.90490502     -0.05633021
e   0.6121061      Incl.    2.88880     +0.41766340     -0.07315896
P   4.00           H   24.1           G   0.15           U   7
Residuals in seconds of arc
080112 703  0.3+  0.4-    080112 F84  0.6-  2.1-    080113 854  1.2+  0.6+
080112 703  0.0   0.3-    080112 F84  0.3+  1.1-    080113 854  1.5+  1.1-
080112 703  0.1+  0.6-    080112 A74  0.6+  0.5-    080113 854  1.0+  0.6+
080112 703  0.1+  0.5-    080112 A74  0.1+  0.2-    080114 A44  0.1+  0.1-
080112 703  0.4+  0.6-    080112 A74  0.5+  0.1-    080114 A44  0.1+  0.0
080112 703  0.6+  0.2-    080112 A74  0.2+  0.7-    080114 A44  0.9-  0.3-
080112 703  0.1-  0.2-    080112 A74  0.5+  0.2+    080114 A44  0.0   1.5-
080112 703  0.1+  0.4-    080112 A74  0.4+  0.4-    080114 A44  0.4+  0.8-
080112 703  0.2+  0.3-    080112 A74  0.6+  1.2-    080114 461  0.0   0.1+
080112 703  0.0   0.4+    080113 A17  0.3+  0.7-    080114 461  0.0   0.1-
080112 703  0.2+  0.1+    080113 A17  0.2+  0.9-    080114 461  0.0   0.0
080112 703  0.1-  0.1-    080113 A17  0.2+  0.7-    080114 461  0.3+  0.1-

Ephemeris:
2008 AA31                a,e,i = 2.52, 0.61, 3                   q = 0.9775
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2008 01 15    11 40.10   +12 00.4    0.0347   1.003   123.0    55.4    18.8
2008 01 17    11 35.12   +07 21.4    0.0438   1.009   124.6    53.3    19.3
2008 01 19    11 31.64   +04 20.7    0.0532   1.016   126.4    51.2    19.7
2008 01 21    11 28.94   +02 15.9    0.0626   1.024   128.2    49.0    20.0
2008 01 23    11 26.66   +00 45.9    0.0721   1.032   130.1    46.8    20.2
2008 01 25    11 24.61   -00 20.9    0.0817   1.041   132.1    44.5    20.5
2008 01 27    11 22.68   -01 11.4    0.0914   1.050   134.2    42.2    20.7
2008 01 29    11 20.81   -01 49.7    0.101    1.060   136.3    39.9    20.8
2008 01 31    11 18.96   -02 18.7    0.111    1.071   138.5    37.6    21.0
2008 02 02    11 17.11   -02 40.3    0.121    1.082   140.7    35.2    21.1
2008 02 04    11 15.25   -02 56.0    0.131    1.093   143.0    32.9    21.3
2008 02 06    11 13.38   -03 06.7    0.141    1.105   145.2    30.6    21.4
2008 02 08    11 11.51   -03 13.4    0.151    1.117   147.5    28.3    21.5
2008 02 10    11 09.64   -03 16.7    0.162    1.130   149.8    26.0    21.6
2008 02 12    11 07.78   -03 17.1    0.173    1.143   152.1    23.8    21.7
2008 02 14    11 05.96   -03 15.1    0.184    1.156   154.4    21.7    21.8
2008 02 16    11 04.18   -03 11.1    0.195    1.170   156.7    19.5    21.9
2008 02 18    11 02.44   -03 05.4    0.207    1.184   158.9    17.5    22.0
2008 02 20    11 00.77   -02 58.3    0.219    1.198   161.1    15.5    22.0
2008 02 22    10 59.17   -02 50.1    0.231    1.212   163.2    13.6    22.1
2008 02 24    10 57.64   -02 40.9    0.244    1.227   165.2    11.9    22.2

Timothy B. Spahr             (C) Copyright 2008 MPC           M.P.E.C. 2008-A69

Read MPEC 2008-A68 Read MPEC 2008-A70


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