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  • MPEC 2012-P04 : 2010 XT45

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    M.P.E.C. 2012-P04                                Issued 2012 Aug. 3, 21:14 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
    
                                       2010 XT45
    
                               Revision to MPEC 2010-X89
    
    Additional Observations:
         K10X45T _ 1983 03 08.48354 09 57 40.01 -08 19 05.4                rEP004260
         K10X45T _ 1983 03 08.52521 09 57 36.72 -08 18 23.5                rEP004260
         K10X45T |C2012 07 30.40199 04 00 00.74 +20 13 17.4          20.9 VuEP004807
         K10X45T |C2012 07 30.40818 04 00 01.64 +20 13 18.0          20.9 VuEP004807
         K10X45T |C2012 07 30.41435 04 00 02.49 +20 13 17.7          20.7 VuEP004807
         K10X45T |C2012 07 30.42049 04 00 03.35 +20 13 17.4          20.9 VuEP004807
         K10X45T |C2012 07 30.42618 04 00 04.14 +20 13 17.1          20.9 VuEP004807
         K10X45T KC2012 08 01.36795804 04 38.56 +20 11 47.2          20.3 VrEP004H21
         K10X45T KC2012 08 01.37709304 04 39.81 +20 11 46.3          20.3 VrEP004H21
         K10X45T KC2012 08 01.38653504 04 41.11 +20 11 46.1          20.5 VrEP004H21
         K10X45T FC2012 08 02.36591104 06 58.11 +20 10 47.7                rEP004H21
         K10X45T FC2012 08 02.38338104 07 00.50 +20 10 46.6                rEP004H21
    
    Observer details:
    260 Siding Spring-DSS.  Measurers S. Foglia, M. Tombelli.  1.2-m Schmidt.
    807 Cerro Tololo.  Observers R. Holmes, T. Linder.  0.41-m f/11
        Ritchey-Chretien + CCD.
    H21 Astronomical Research Observatory, Westfield.  Observer R. Holmes.
        Measurers L. Buzzi, H. Devore, S. Foglia, T. Vorobjov.  0.61-m f/4.0
        astrograph + CCD.
    
    First and last observations above in comparison with prediction:
    Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
    830308 260 0.03+ 0.01-    120802 H21  2.2-  0.1-    MPO192643   -0.0060 day
    
    Orbital elements:
    2010 XT45                                                Earth MOID = 0.2867 AU
    Epoch 2012 Sept. 30.0 TT = JDT 2456200.5                MPC
    M  90.94733              (2000.0)            P               Q
    n   0.48455844     Peri.   88.84398     +0.35371658     +0.93098408
    a   1.6053582      Node   202.53309     -0.92421231     +0.33301649
    e   0.2774288      Incl.   13.62842     -0.14393118     +0.14956157
    P   2.03           H   17.5           G   0.15           U   3
    Residuals in seconds of arc
    830308 260  0.6-  0.5+    101210 176  0.1+  0.6-    101227 H21  0.2+  0.2+
    830308 260  0.7+  0.4-    101210 176  0.2+  0.7-    110102 H21  0.2-  0.1+
    100810 691  0.1-  0.3+    101210 176  0.3+  0.6-    110102 H21  0.0   0.2+
    100810 691  0.3-  0.4+    101210 176  0.5+  0.4-    110102 H21  0.2+  0.1+
    100810 691  0.2-  0.7+    101210 203  0.4+  0.0     110108 448  1.3+  0.1-
    101209 704  0.3-  0.3-    101211 203  1.0+  0.7-    110108 448  0.7+  0.7-
    101209 704  0.2+  0.6+    101211 595  0.1+  0.4-    110108 448  0.2-  0.0
    101209 704  0.3+  0.8+    101211 595  0.5-  1.3-    110109 474  0.1-  0.0
    101209 704  0.6-  0.1+    101214 I19  0.9+  0.3+    110109 474  0.3-  0.2+
    101209 704  0.0   0.3+    101214 I19  0.9+  0.3+    110109 474  0.3-  0.1-
    101210 204  0.3+  0.4-    101214 I19  0.2+  0.0     110111 204  0.2-  0.1-
    101210 204  0.0   0.1+    101214 H21  0.3-  0.1-    110111 204  0.2+  0.0
    101210 204  0.2+  0.7-    101214 H21  0.2-  0.2-    110129 H21  0.1-  0.4+
    101210 300  0.5+  0.2+    101214 H21  0.1-  0.2-    110129 H21  0.0   0.2+
    101210 300  0.1+  0.4+    101214 H21  0.2+  0.1-    110129 H21  0.0   0.6+
    101210 300  0.6+  0.3-    101215 H21  0.4-  0.7+    120730 807  0.4-  0.3-
    101210 300  0.3+  0.0     101215 H21  0.5-  0.8+    120730 807  0.1+  0.4+
    101210 300  1.6-  0.2+    101215 H21  0.6-  0.8+    120730 807  0.2-  0.3+
    101210 300  1.0-  0.6+    101219 H21  0.3-  0.2-    120730 807  0.2-  0.2+
    101210 A24  0.2+  0.3-    101219 H21  0.4-  0.3-    120730 807  0.3-  0.0
    101210 A24  0.7+  0.2-    101219 H21  0.9-  0.4-    120801 H21  0.9+  0.4-
    101210 176  0.6-  0.2-    101219 H21  0.5-  0.0     120801 H21  0.6+  0.9-
    101210 A24  0.3+  0.1-    101225 291  0.5-  0.2+    120801 H21  0.4+  0.6-
    101210 176  0.5+  0.3-    101225 291  0.4-  0.2+    120802 H21  0.6+  0.1+
    101210 176  0.4+  0.3-    101225 291  0.3-  0.3+    120802 H21  0.1+  0.0
    101210 A24  0.0   0.3-    101227 H21  0.3+  0.6+
    101210 A24  0.3+  0.1-    101227 H21  0.2+  0.2+
    
    Ephemeris:
    2010 XT45                a,e,i = 1.61, 0.28, 14                  q = 1.1600
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
    2012 07 04    02 52 43.3 +19 15 03   1.6881  1.3989    55.9    37.0    20.9
    ...
    2012 07 19    03 32 03.2 +20 05 55   1.6479  1.4571    61.0    37.6    20.9
    ...
    2012 07 27    03 51 51.7 +20 13 49   1.6198  1.4885    64.1    37.8    20.9
    ...
    2012 08 02    04 06 06.6 +20 11 14   1.5958  1.5120    66.5    38.0    20.9
    2012 08 03    04 08 25.9 +20 10 06   1.5916  1.5159    66.9    38.0    20.9
    2012 08 04    04 10 44.2 +20 08 47   1.5872  1.5198    67.4    38.0    20.9
    ...
    2012 08 10    04 24 13.5 +19 56 46   1.5598  1.5432    70.0    38.1    20.9
    ...
    2012 08 18    04 41 13.0 +19 30 07   1.5194  1.5740    73.8    38.1    20.9
    ...
    2012 09 02    05 09 33.0 +18 09 00   1.4329  1.6306    81.8    37.8    20.9
    
    A. U. Tomatic                (C) Copyright 2012 MPC           M.P.E.C. 2012-P04
    

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