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Minor Planet Center

MPEC 2009-B09 : 2009 AH16

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M.P.E.C. 2009-B09                                Issued 2009 Jan. 17, 16:18 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

                                   2009 AH16

Observations:
     K09A16H* C2009 01 15.45365 14 33 09.10 +36 43 35.4          18.7   EB009704
     K09A16H  C2009 01 15.46622 14 33 07.66 +36 44 01.3          19.7   EB009704
     K09A16H  C2009 01 15.47875 14 33 06.11 +36 44 32.3          19.2   EB009704
     K09A16H  C2009 01 15.49130 14 33 04.48 +36 45 02.8          19.7   EB009704
     K09A16H  C2009 01 15.50384 14 33 03.06 +36 45 29.1          19.4   EB009704
     K09A16H  C2009 01 16.38010 14 31 20.59 +37 18 07.3          19.0 R EB009854
     K09A16H  C2009 01 16.38202 14 31 20.37 +37 18 12.3          19.0 R EB009854
     K09A16H  C2009 01 16.38490 14 31 19.99 +37 18 18.1          19.1 R EB009854
     K09A16H  C2009 01 16.43094514 31 14.03 +37 20 02.8          19.3 V EB009H55
     K09A16H  C2009 01 16.43480514 31 13.54 +37 20 11.6          19.2 V EB009H55
     K09A16H  C2009 01 16.43919714 31 13.00 +37 20 21.4          19.3 V EB009H55
     K09A16H  C2009 01 16.45706 14 31 11.09 +37 21 02.3          18.6   EB009704
     K09A16H  C2009 01 16.47015 14 31 09.44 +37 21 31.5          18.9   EB009704
     K09A16H  C2009 01 16.48289 14 31 07.90 +37 22 00.5          18.7   EB009704
     K09A16H  C2009 01 16.49565 14 31 06.30 +37 22 29.4          19.1   EB009704
     K09A16H  C2009 01 16.50840 14 31 04.70 +37 22 57.7          18.8   EB009704
     K09A16H  C2009 01 17.20021 14 29 40.97 +37 48 32.6          18.6 C EB009493
     K09A16H  C2009 01 17.20161 14 29 40.80 +37 48 35.6          18.6 C EB009493
     K09A16H  C2009 01 17.20303 14 29 40.61 +37 48 38.8          18.6 C EB009493
     K09A16H  C2009 01 17.54271 14 28 58.50 +38 01 11.6          18.6 R EB009H01
     K09A16H  C2009 01 17.54476 14 28 58.24 +38 01 16.2          18.7 R EB009H01
     K09A16H  C2009 01 17.54729 14 28 57.91 +38 01 21.7          18.7 R EB009H01
     K09A16H  C2009 01 17.55182 14 28 57.31 +38 01 31.8          18.7 R EB009H01

Observer details:
493 Calar Alto.  Observer F. Hormuth.  1.23-m reflector + CCD.
704 Lincoln Laboratory ETS, New Mexico.  Observers M. Bezpalko, D. Torres,
    R. Kracke, G. Spitz, J. Kistler.  Measurers J. Stuart, S. Scruggs.  1.0-m
    f/2.15 reflector + CCD.
854 Sabino Canyon Observatory, Tucson.  Observer J. E. McGaha.  0.36-m f/10.0
    Schmidt-Cassegrain + CCD.
H01 Magdalena Ridge Observatory, Socorro.  Observers W. H. Ryan, E. V. Ryan.
    Measurer W. H. Ryan.  2.4-m f/8.9 reflector + CCD.
H55 Astronomical Research Observatory, Charleston.  Observer R. Holmes.
    Measurer H. Devore.  0.61-m f/4.0 astrograph + CCD.

Orbital elements:
2009 AH16                                                Earth MOID = 0.2732 AU
Epoch 2008 Nov. 30.0 TT = JDT 2454800.5                 MPC
M   4.53277              (2000.0)            P               Q
n   0.35092276     Peri.  329.43354     +0.88114764     -0.36059727
a   1.9906505      Node    54.87753     +0.47283580     +0.67507372
e   0.7604577      Incl.   21.95899     -0.00226779     +0.64361874
P   2.81           H   17.7           G   0.15           U   9
Residuals in seconds of arc
090115 704  0.1-  0.4+    090116 H55  0.2-  0.4-    090117 493  0.2-  0.3-
090115 704  0.7+  2.4-    090116 H55  0.3-  0.3-    090117 493  0.1-  0.4-
090115 704  0.3+  0.1+    090116 H55  0.2-  0.4-    090117 493  0.2-  0.4-
090115 704  1.0-  2.0+    090116 704  0.0   0.3+    090117 H01  0.1+  0.2+
090115 704  0.2+  0.2-    090116 704  0.3-  0.1-    090117 H01  0.1+  0.2+
090116 854  0.1+  0.2+    090116 704  0.3+  0.1+    090117 H01  0.1+  0.1+
090116 854  0.2+  0.8+    090116 704  0.3+  0.3+    090117 H01  0.0   0.2+
090116 854  0.2-  0.0     090116 704  0.3+  0.1-

Ephemeris:
2009 AH16                a,e,i = 1.99, 0.76, 22                  q = 0.4768
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2009 01 09    14 44.49   +32 34.2    0.558    1.094    85.7    63.7    18.9
2009 01 19    14 25.89   +38 54.3    0.600    1.227    98.6    52.5    19.0
2009 01 29    13 59.98   +44 34.2    0.644    1.354   110.6    42.9    19.1
2009 02 08    13 24.73   +49 04.6    0.699    1.474   121.1    34.9    19.2
2009 02 18    12 42.19   +51 45.8    0.769    1.589   129.0    28.9    19.4
2009 02 28    11 58.88   +52 19.8    0.859    1.698   133.1    25.2    19.7
2009 03 10    11 22.29   +51 05.0    0.972    1.802   133.1    23.7    20.0
2009 03 20    10 55.94   +48 42.4    1.104    1.902   129.7    23.7    20.4
2009 03 30    10 39.34   +45 48.6    1.255    1.996   124.3    24.4    20.8
2009 04 09    10 30.49   +42 46.6    1.421    2.087   117.9    25.1    21.2
2009 04 19    10 27.30   +39 48.3    1.598    2.173   111.1    25.5    21.6
2009 04 29    10 28.15   +36 58.3    1.785    2.255   104.2    25.6    21.9

A. U. Tomatic                (C) Copyright 2009 MPC           M.P.E.C. 2009-B09

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