• Processing (Info)

    • MPEC 2009-D44 : 2009 DO4

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    M.P.E.C. 2009-D44                                Issued 2009 Feb. 21, 14:28 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 DO4

Observations:
     K09D04O* C2009 02 20.29108 10 36 41.97 +19 39 52.7          19.0   ED044704
     K09D04O  C2009 02 20.30344 10 36 36.47 +19 37 57.0          19.2   ED044704
     K09D04O  C2009 02 20.31651 10 36 30.64 +19 35 53.0          19.1   ED044704
     K09D04O  C2009 02 20.32926 10 36 24.91 +19 33 51.8          19.4   ED044704
     K09D04O  C2009 02 20.34168 10 36 19.37 +19 31 53.8          19.1   ED044704
     K09D04O  C2009 02 21.09619 10 30 50.23 +17 29 48.4          18.7 C ED044493
     K09D04O  C2009 02 21.09689 10 30 49.90 +17 29 41.5          18.8 C ED044493
     K09D04O  C2009 02 21.09757 10 30 49.60 +17 29 34.7          18.5 C ED044493
     K09D04O  C2009 02 21.15181 10 30 26.57 +17 21 17.6          18.3 R ED044I77
     K09D04O  C2009 02 21.15364 10 30 25.77 +17 20 59.4          18.3 R ED044I77
     K09D04O  C2009 02 21.15547 10 30 24.96 +17 20 41.3          18.0 R ED044I77
     K09D04O  C2009 02 21.19921 10 30 07.90 +17 12 44.7          18.7 R ED044854
     K09D04O  C2009 02 21.20267 10 30 06.24 +17 12 10.3          18.8 R ED044854
     K09D04O  C2009 02 21.20615 10 30 04.72 +17 11 35.6          18.7 R ED044854
     K09D04O  C2009 02 21.29529 10 29 24.05 +16 56 46.0          18.0 R ED044H01
     K09D04O  C2009 02 21.29907 10 29 22.32 +16 56 08.1          18.1 R ED044H01
     K09D04O  C2009 02 21.30419 10 29 19.99 +16 55 16.8          18.0 R ED044H01
     K09D04O  C2009 02 21.30804 10 29 18.24 +16 54 38.2          18.2 R ED044H01

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.
I77 CEAMIG-REA Observatory, Belo Horizonte.  Observers C. Jacques, E. Pimentel.
    Measurer C. Jacques.  0.30-m f/3.0 reflector + CCD.

Orbital elements:
2009 DO4                                                 Earth MOID = 0.1856 AU
Epoch 2008 Nov. 30.0 TT = JDT 2454800.5                 MPC
M 333.89141              (2000.0)            P               Q
n   0.23460097     Peri.  205.59392     -0.96071092     +0.07841974
a   2.6036515      Node   334.20029     +0.18296844     -0.54236740
e   0.5617954      Incl.   37.71486     -0.20870334     -0.83647352
P   4.20           H   21.3           G   0.15           U   8
Residuals in seconds of arc
090220 704  0.3-  0.5-    090221 493  0.1+  0.2+    090221 854  0.6-  0.3-
090220 704  0.0   0.6+    090221 493  0.2+  0.1+    090221 854  0.1+  0.4-
090220 704  0.3+  0.3+    090221 I77  0.8-  0.0     090221 H01  0.0   0.1+
090220 704  0.1-  0.1-    090221 I77  0.3-  0.0     090221 H01  0.1-  0.1+
090220 704  0.2+  0.2-    090221 I77  0.1+  0.1+    090221 H01  0.0   0.1+
090221 493  0.3+  0.1+    090221 854  0.8+  0.2-    090221 H01  0.1+  0.1+

Ephemeris:
2009 DO4                 a,e,i = 2.60, 0.56, 38                  q = 1.1409
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2009 02 18    10 52.70   +25 15.0    0.221    1.201   162.5    14.3    19.2
2009 02 23    10 16.71   +11 59.9    0.195    1.184   177.1     2.4    18.4
2009 02 28    09 38.58   -03 57.2    0.189    1.169   159.8    17.0    18.9
2009 03 05    09 01.99   -18 52.6    0.204    1.158   141.2    32.5    19.5
2009 03 10    08 29.82   -30 09.9    0.235    1.149   126.6    44.0    20.2
2009 03 15    08 03.33   -37 52.0    0.277    1.143   116.1    51.4    20.7
2009 03 20    07 42.50   -43 02.0    0.323    1.141   108.6    55.8    21.2
2009 03 25    07 26.71   -46 35.7    0.372    1.142   103.3    58.2    21.5
2009 03 30    07 15.14   -49 10.3    0.421    1.146    99.5    59.3    21.8

Timothy B. Spahr             (C) Copyright 2009 MPC           M.P.E.C. 2009-D44

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