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Minor Planet Center

MPEC 2009-D30 : 2009 DC1

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M.P.E.C. 2009-D30                                Issued 2009 Feb. 19, 23:45 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 DC1

Observations:
     K09D01C* C2009 02 19.28155 11 03 13.64 +00 50 51.6          18.5 V ED030703
     K09D01C  C2009 02 19.28957 11 03 06.48 +00 50 33.8          18.9 V ED030703
     K09D01C  C2009 02 19.29764 11 02 59.35 +00 50 17.5          18.8 V ED030703
     K09D01C  C2009 02 19.30563 11 02 52.33 +00 50 01.8          18.9 V ED030703
     K09D01C  C2009 02 19.33762 11 02 23.26 +00 48 50.7          18.6 R ED030H01
     K09D01C  C2009 02 19.34155 11 02 19.77 +00 48 42.4          18.5 R ED030H01
     K09D01C  C2009 02 19.34177 11 02 20.00 +00 48 44.5          18.9 V ED030703
     K09D01C  C2009 02 19.34238 11 02 19.42 +00 48 43.5          18.9 V ED030703
     K09D01C  C2009 02 19.34300 11 02 18.92 +00 48 43.3          18.7 V ED030703
     K09D01C  C2009 02 19.34360 11 02 18.38 +00 48 41.4          18.8 V ED030703
     K09D01C  C2009 02 19.34433 11 02 17.28 +00 48 36.5          18.5 R ED030H01
     K09D01C  C2009 02 19.34960 11 02 12.61 +00 48 25.4          18.7 R ED030H01
     K09D01C  C2009 02 19.35299 11 02 09.58 +00 48 18.3          18.7 R ED030H01
     K09D01C  C2009 02 19.35647 11 02 07.01 +00 48 14.5          19.0 R ED030854
     K09D01C  C2009 02 19.35901 11 02 04.68 +00 48 09.5          18.8 R ED030854
     K09D01C  C2009 02 19.36153 11 02 02.51 +00 48 04.4          18.8 R ED030854
     K09D01C  C2009 02 19.88264 10 54 55.22 +00 29 46.2          19.3 V ED030104
     K09D01C  C2009 02 19.88472 10 54 53.81 +00 29 44.0          19.7 V ED030104
     K09D01C  C2009 02 19.88652 10 54 52.04 +00 29 39.7          19.8 V ED030104
     K09D01C  C2009 02 19.88822 10 54 52.37 +00 29 47.8          18.9 C ED030493
     K09D01C  C2009 02 19.88911 10 54 51.62 +00 29 46.1          18.7 C ED030493
     K09D01C  C2009 02 19.88999 10 54 50.87 +00 29 44.3          19.0 C ED030493
     K09D01C  C2009 02 19.89553 10 54 44.52 +00 29 17.0          18.9 R ED030143
     K09D01C  C2009 02 19.90973 10 54 32.60 +00 28 48.4          18.7 R ED030143
     K09D01C  C2009 02 19.91421 10 54 28.77 +00 28 40.2                 ED030587
     K09D01C  C2009 02 19.91648 10 54 26.80 +00 28 35.2          18.8 R ED030587
     K09D01C  C2009 02 19.91880 10 54 24.89 +00 28 29.9          19.0 R ED030587

Observer details:
104 San Marcello Pistoiese.  Observers L. Tesi, G. Fagioli, M. Mazzucato,
    E. Tognelli.  Measurer L. Tesi.  0.60-m f/4 reflector + CCD.
143 Gnosca.  Observer S. Sposetti.  0.40-m f/4 reflector + CCD.
493 Calar Alto.  Observer F. Hormuth.  1.23-m reflector + CCD.
587 Sormano.  Observers F. Manca, A. Testa.  Measurer F. Manca.  0.5-m f/6.8
    reflector + 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.
H01 Magdalena Ridge Observatory, Socorro.  Observer W. H. Ryan.  2.4-m f/8.9
    reflector + CCD.

Orbital elements:
2009 DC1                                                 Earth MOID = 0.0308 AU
Epoch 2009 Feb. 18.0 TT = JDT 2454880.5                 MPC
M 123.30497              (2000.0)            P               Q
n   1.20265780     Peri.   35.79480     +0.99191585     -0.10058357
a   0.8757390      Node   329.69931     +0.04668678     +0.85619202
e   0.2773559      Incl.    8.82083     +0.11799696     +0.50677230
P   0.82           H   24.0           G   0.15
From 25 observations 2009 Feb. 19.  E-assumed.

Ephemeris:
2009 DC1                 a,e,i = 0.88, 0.28, 9                   q = 0.6328
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2009 02 18    11 21.81   +01 39.0    0.0620   1.046   158.6    20.1    19.1
2009 02 20    10 53.27   +00 27.4    0.0655   1.052   165.6    13.5    19.0
2009 02 22    10 27.86   -00 34.4    0.0700   1.058   169.0    10.2    19.0
2009 02 24    10 05.78   -01 25.7    0.0754   1.063   167.6    11.5    19.2
2009 02 26    09 46.90   -02 07.1    0.0816   1.069   163.5    15.2    19.5
2009 02 28    09 30.95   -02 40.0    0.0885   1.074   158.9    19.4    19.9
2009 03 02    09 17.56   -03 05.6    0.0959   1.078   154.4    23.4    20.2
2009 03 04    09 06.38   -03 25.6    0.104    1.083   150.2    27.1    20.5
2009 03 06    08 57.07   -03 40.9    0.112    1.087   146.4    30.4    20.7
2009 03 08    08 49.34   -03 52.7    0.120    1.091   142.9    33.3    21.0
2009 03 10    08 42.95   -04 01.7    0.129    1.095   139.6    36.0    21.2
2009 03 12    08 37.69   -04 08.5    0.138    1.098   136.7    38.4    21.4
2009 03 14    08 33.38   -04 13.5    0.147    1.101   133.9    40.6    21.6
2009 03 16    08 29.91   -04 17.2    0.156    1.104   131.3    42.6    21.8
2009 03 18    08 27.14   -04 19.8    0.165    1.107   128.9    44.4    22.0
2009 03 20    08 25.00   -04 21.6    0.175    1.109   126.7    46.1    22.2

Timothy B. Spahr             (C) Copyright 2009 MPC           M.P.E.C. 2009-D30

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