• Processing (Info)

    • MPEC 2011-O15 : 2011 OB

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    M.P.E.C. 2011-O15                                Issued 2011 July 21, 12:41 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 https://www.minorplanetcenter.net/    ISSN 1523-6714

                                    2011 OB

Observations:
     K11O00B*QC2011 07 20.38519 13 46 24.89 -25 24 04.6          17.2 VrEO015E12
     K11O00B QC2011 07 20.39403 13 46 30.61 -25 25 39.7          17.3 VrEO015E12
     K11O00B QC2011 07 20.40290 13 46 36.35 -25 27 15.2          17.1 VrEO015E12
     K11O00B QC2011 07 20.44704 13 47 04.90 -25 35 07.6          17.4 VrEO015E12
     K11O00B QC2011 07 20.44752 13 47 05.21 -25 35 12.9          17.5 VrEO015E12
     K11O00B QC2011 07 20.44800 13 47 05.53 -25 35 17.9          17.5 VrEO015E12
     K11O00B QC2011 07 20.49969 13 47 39.14 -25 44 25.8          18.1 VrEO015E12
     K11O00B QC2011 07 20.50148 13 47 40.30 -25 44 44.6          18.0 VrEO015E12
     K11O00B |C2011 07 20.97163 13 52 50.37 -27 05 53.4          18.7 VoEO015807
     K11O00B |C2011 07 20.97631 13 52 53.27 -27 06 40.1          18.8 VoEO015807
     K11O00B |C2011 07 20.98615 13 52 59.36 -27 08 18.1          18.5 VoEO015807
     K11O00B |C2011 07 20.99029 13 53 01.92 -27 08 59.3          18.3 VoEO015807
     K11O00B KC2011 07 21.01625 13 53 16.28 -27 13 19.7          17.4 RrEO015I77
     K11O00B KC2011 07 21.02023 13 53 18.83 -27 13 58.8          17.3 RrEO015I77
     K11O00B KC2011 07 21.02443 13 53 21.41 -27 14 39.7          17.6 RrEO015I77
     K11O00B KC2011 07 21.09780013 54 09.68 -27 27 37.8          18.3 VrEO015H21
     K11O00B IC2011 07 21.10348813 54 13.16 -27 28 32.8                rEO015H21
     K11O00B KC2011 07 21.11074213 54 17.70 -27 29 43.4          17.6 VrEO015H21
     K11O00B QC2011 07 21.37117 13 57 03.63 -28 10 36.9          18.2 VrEO015E12
     K11O00B QC2011 07 21.44055 13 57 45.44 -28 21 25.4          17.5 VrEO015E12
     K11O00B QC2011 07 21.46266413 57 58.801-28 24 49.90         17.3 VrEO015E12

Observer details:
807 Cerro Tololo.  Observers R. Holmes, T. Linder, V. Hoette.  Measurers
    R. Holmes, T. Linder.  0.41-m f/11 Ritchey-Chretien + CCD.
E12 Siding Spring Survey.  Observer R. H. McNaught.  Measurers J. D. Ahern,
    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.  0.5-m Uppsala
    Schmidt + CCD.
H21 Astronomical Research Observatory, Westfield.  Observer R. Holmes.
    Measurers S. Foglia, T. Vorobjov.  0.61-m f/4.0 astrograph + 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:
2011 OB                                             PHA, Earth MOID = 0.0101 AU
Epoch 2011 Aug. 27.0 TT = JDT 2455800.5                 MPC
M 121.11108              (2000.0)            P               Q
n   1.14568019     Peri.   48.93485     -0.82444048     -0.34664083
a   0.9045386      Node   106.27419     +0.26727700     -0.93524640
e   0.5243494      Incl.   27.77764     +0.49885960     -0.07179350
P   0.86           H   19.3           G   0.15           U   8
Residuals in seconds of arc
110720 E12  0.1-  0.2-    110720 E12  0.1+  0.1+    110721 I77  0.0   0.1-
110720 E12  0.0   0.0     110720 807  0.1-  0.3+    110721 H21  0.1+  0.3-
110720 E12  0.1+  0.0     110720 807  0.0   0.3+    110721 H21  0.6-  0.0
110720 E12  0.1-  0.1+    110720 807  0.0   0.2+    110721 H21  0.0   0.1-
110720 E12  0.1-  0.1-    110720 807  0.0   0.1+    110721 E12  0.1+  0.0
110720 E12  0.0   0.0     110721 I77  0.2-  0.2-    110721 E12  0.0   0.0
110720 E12  0.2+  0.0     110721 I77  0.6+  0.3-    110721 E12  0.0   0.0

Ephemeris:
2011 OB                  a,e,i = 0.90, 0.52, 28                  q = 0.4302
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2011 06 21    07 18 11.5 +51 09 16   0.3157  0.7666    31.9   135.5    22.5
...
2011 07 06    09 58 54.5 +39 51 49   0.1390  0.9175    41.6   132.6    20.8
...
2011 07 14    12 18 29.8 +03 11 19   0.1051  0.9890    72.0   102.3    18.1
...
2011 07 20    13 42 04.3 -24 12 35   0.1372  1.0384    95.5    76.9    17.8
2011 07 21    13 53 08.7 -27 10 32   0.1458  1.0463    97.9    74.1    17.8
2011 07 22    14 03 29.0 -29 45 24   0.1549  1.0541   100.0    71.7    17.9
...
2011 07 28    14 52 54.7 -39 38 01   0.2173  1.0986   106.9    62.2    18.4
...
2011 08 05    15 37 07.7 -45 21 21   0.3095  1.1525   108.9    56.4    19.1
...
2011 08 20    16 31 50.7 -49 05 07   0.4899  1.2370   105.6    52.0    20.1

A. U. Tomatic                (C) Copyright 2011 MPC           M.P.E.C. 2011-O15

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