• MPC Preparation (Info)

    • MPEC 2011-B40 : 2011 BA12

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    M.P.E.C. 2011-B40                                Issued 2011 Jan. 26, 20:31 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.org/iau/mpc.html  ISSN 1523-6714

                                   2011 BA12

Observations:
     K11B12A* C2011 01 25.19380 08 48 08.57 +17 10 22.3          20.1 VoEB040691
     K11B12A  C2011 01 25.21154 08 48 10.17 +17 10 14.7          20.3 VoEB040691
     K11B12A  C2011 01 25.22930 08 48 11.72 +17 10 07.2          20.0 VoEB040691
     K11B12A KC2011 01 25.29060208 48 16.07 +17 09 34.2          19.6 VrEB040H21
     K11B12A  C2011 01 25.30390 08 48 18.17 +17 09 33.5          20.3 VoEB040291
     K11B12A KC2011 01 25.30429608 48 17.27 +17 09 27.9          19.6 VrEB040H21
     K11B12A KC2011 01 25.30765 08 48 17.83 +17 09 27.1          19.9 RuEB040H36
     K11B12A  C2011 01 25.30791 08 48 18.50 +17 09 31.7          20.2 VoEB040291
     K11B12A  C2011 01 25.31191 08 48 18.84 +17 09 29.9          20.1 VoEB040291
     K11B12A KC2011 01 25.31533508 48 18.22 +17 09 22.5          19.5 VrEB040H21
     K11B12A KC2011 01 25.31662 08 48 18.63 +17 09 22.6          19.7 RuEB040H36
     K11B12A KC2011 01 25.31963 08 48 18.88 +17 09 21.1          19.8 RuEB040H36
     K11B12A  C2011 01 25.59765 08 48 48.28 +17 07 10.6          20.2 RoEB040300
     K11B12A  C2011 01 25.60969 08 48 49.31 +17 07 05.2          19.7 RoEB040300
     K11B12A  C2011 01 25.62171 08 48 50.41 +17 06 59.5          20.0 RoEB040300
     K11B12A  C2011 01 25.63374 08 48 51.41 +17 06 53.9          19.9 RoEB040300
     K11B12A %C2011 01 26.35075 08 50 07.26 +17 01 07.9          19.7 RLEB040F65
     K11B12A %C2011 01 26.35210 08 50 07.37 +17 01 07.3          19.7 RLEB040F65
     K11B12A %C2011 01 26.35345 08 50 07.50 +17 01 06.7          20.6 RLEB040F65
     K11B12A KC2011 01 26.36649 08 50 06.07 +17 00 48.0          19.4 RuEB040H36
     K11B12A KC2011 01 26.37024 08 50 06.45 +17 00 46.0          19.4 RuEB040H36
     K11B12A KC2011 01 26.37925 08 50 07.31 +17 00 41.5          19.6 RuEB040H36
     K11B12A  C2011 01 26.39679 08 50 09.34 +17 00 38.0          20.1 VoEB040291
     K11B12A  C2011 01 26.40061 08 50 09.69 +17 00 36.0          20.0 VoEB040291

Observer details:
291 LPL/Spacewatch II.  Observers J. V. Scotti, T. H. Bressi.  1.8-m f/2.7
    reflector + CCD.
300 Bisei Spaceguard Center--BATTeRS.  Observers A. Asami, S. Okumura.  1.0-m
    f/3.0 reflector + CCD.
691 Steward Observatory, Kitt Peak.  Observer J. V. Scotti.  0.9-m f/3
    reflector + CCD.
F65 Haleakala-Faulkes Telescope North.  Observer T. Lister.  2.0-m f/10
    Ritchey-Chretien + CCD.
H21 Astronomical Research Observatory, Westfield.  Observer R. Holmes.
    Measurers S. Foglia, T. Vorobjov.  0.61-m f/4.0 astrograph + CCD.
H36 Sandlot Observatory, Scranton.  Observer G. Hug.  0.56-m reflector + CCD.

Orbital elements:
2011 BA12                                                Earth MOID = 0.0729 AU
Epoch 2011 Feb. 8.0 TT = JDT 2455600.5                  MPC
M 352.22893              (2000.0)            P               Q
n   0.25887229     Peri.  284.65339     -0.98751902     -0.15748517
a   2.4382544      Node   246.28569     +0.14539064     -0.90626892
e   0.5625511      Incl.    0.13435     +0.06056195     -0.39226913
P   3.81           H   22.8           G   0.15           U   8
Residuals in seconds of arc
110125 691  0.0   0.0     110125 291  0.2-  0.1+    110126 F65  0.3+  0.1-
110125 691  0.1+  0.1-    110125 H21  0.3+  0.1-    110126 F65  0.1+  0.1-
110125 691  0.2-  0.1+    110125 H36  0.4+  0.2-    110126 F65  0.2+  0.1-
110125 H21  0.2+  0.6-    110125 H36  0.2+  0.2-    110126 H36  0.1+  0.1-
110125 291  0.0   0.1-    110125 300  0.1+  0.2+    110126 H36  0.6+  0.1-
110125 H21  0.4+  0.2-    110125 300  0.2-  0.4+    110126 H36  0.9+  0.2+
110125 H36  0.0   0.0     110125 300  0.5+  0.4+    110126 291  0.3-  0.0
110125 291  0.2-  0.0     110125 300  0.2-  0.5+    110126 291  0.2-  0.0

Ephemeris:
2011 BA12                a,e,i = 2.44, 0.56, 0                   q = 1.0666
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2010 12 27    08 14 24.0 +19 35 34   0.4253  1.3773   153.5    18.6    22.6
...
2011 01 11    08 29 34.0 +18 34 49   0.3018  1.2775   165.1    11.4    21.4
...
2011 01 19    08 38 57.7 +17 53 07   0.2476  1.2290   170.9     7.3    20.7
...
2011 01 25    08 47 47.3 +17 12 08   0.2118  1.1955   174.8     4.3    20.2
2011 01 26    08 49 28.8 +17 04 08   0.2062  1.1902   175.4     3.8    20.1
2011 01 27    08 51 14.9 +16 55 43   0.2007  1.1849   175.9     3.4    20.0
...
2011 02 02    09 03 51.2 +15 54 16   0.1701  1.1555   178.6     1.2    19.4
...
2011 02 10    09 28 22.4 +13 47 29   0.1351  1.1217   178.7     1.1    18.9
...
2011 02 25    10 56 03.9 +05 04 04   0.08989 1.0789   172.4     7.0    18.3

Sonia Keys                   (C) Copyright 2011 MPC           M.P.E.C. 2011-B40

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