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  • MPEC 2008-A08 : 2007 YN56

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    M.P.E.C. 2008-A08                                Issued 2008 Jan. 2, 15:45 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
    
                                       2007 YN56
    
    Observations:
         K07Y56N* C2007 12 30.32186 05 29 34.97 +17 32 38.5          18.8   EA008704
         K07Y56N  C2007 12 30.33494 05 29 33.18 +17 34 45.5          19.0   EA008704
         K07Y56N  C2007 12 30.34821 05 29 31.35 +17 36 56.0          19.0   EA008704
         K07Y56N  C2007 12 30.36121 05 29 29.61 +17 39 01.0          18.7   EA008704
         K07Y56N  C2007 12 30.37461 05 29 27.88 +17 41 11.5          18.7   EA008704
         K07Y56N  C2007 12 30.99166 05 28 31.45 +19 17 14.2          18.7 R EA008147
         K07Y56N  C2007 12 30.99426 05 28 31.09 +19 17 37.2          18.0 R EA008147
         K07Y56N  C2007 12 30.99686 05 28 30.84 +19 18 00.4          18.1 R EA008147
         K07Y56N  C2007 12 30.99949 05 28 30.50 +19 18 23.5          18.3 R EA008147
         K07Y56N  C2007 12 31.00212 05 28 30.18 +19 18 46.9          18.1 R EA008147
         K07Y56N  C2007 12 31.00476 05 28 29.83 +19 19 10.3          18.1 R EA008147
         K07Y56N  C2007 12 31.02220 05 28 27.36 +19 21 42.1                 EA008595
         K07Y56N  C2007 12 31.02473 05 28 27.10 +19 22 05.2          19.0 V EA008595
         K07Y56N  C2007 12 31.02729 05 28 26.74 +19 22 28.2          19.2 V EA008595
         K07Y56N  C2007 12 31.03225 05 28 26.59 +19 23 12.3          18.3 R EA008204
         K07Y56N  C2007 12 31.03738 05 28 25.98 +19 23 57.3                 EA008204
         K07Y56N  C2007 12 31.04779 05 28 24.78 +19 25 28.5                 EA008204
         K07Y56N  C2007 12 31.06836705 28 30.76 +19 28 39.9          19.0 V EA008H55
         K07Y56N  C2007 12 31.07039705 28 30.50 +19 28 58.5          19.0 V EA008H55
         K07Y56N  C2007 12 31.07246805 28 30.24 +19 29 16.8          18.6 V EA008H55
         K07Y56N  C2007 12 31.19319 05 28 17.57 +19 47 11.3          19.0   EA008704
         K07Y56N  C2007 12 31.19537 05 28 17.23 +19 47 29.3          18.7   EA008704
         K07Y56N  C2007 12 31.20860 05 28 15.56 +19 49 24.9          18.9   EA008704
         K07Y56N  C2007 12 31.21718 05 28 14.89 +19 50 44.6                 EA008701
         K07Y56N  C2007 12 31.21826 05 28 14.33 +19 50 49.2          19.3   EA008704
         K07Y56N  C2007 12 31.22176 05 28 13.88 +19 51 19.4          19.0   EA008704
         K07Y56N  C2007 12 31.23074 05 28 12.76 +19 52 37.4          19.5   EA008704
         K07Y56N  C2007 12 31.23479 05 28 12.26 +19 53 12.6          19.2   EA008704
         K07Y56N  C2007 12 31.23940 05 28 12.10 +19 53 56.7                 EA008701
         K07Y56N  C2007 12 31.24327 05 28 11.11 +19 54 25.9          19.2   EA008704
         K07Y56N  C2007 12 31.24771 05 28 11.01 +19 55 08.3          18.7 R EA008651
         K07Y56N  C2007 12 31.24783 05 28 10.52 +19 55 04.9          19.0   EA008704
         K07Y56N  C2007 12 31.25089 05 28 10.63 +19 55 35.2          18.7 R EA008651
         K07Y56N  C2007 12 31.25194 05 28 10.47 +19 55 44.7          18.8 R EA008651
         K07Y56N  C2007 12 31.33162 05 28 00.10 +20 06 57.8          19.0   EA008704
         K07Y56N  C2007 12 31.34455 05 27 58.58 +20 08 46.8          19.1   EA008704
         K07Y56N  C2007 12 31.35750 05 27 57.05 +20 10 35.3          18.9   EA008704
         K07Y56N  C2007 12 31.37048 05 27 55.61 +20 12 24.4          19.0   EA008704
         K07Y56N  C2007 12 31.38342 05 27 54.16 +20 14 11.7          19.4   EA008704
         K07Y56N 9C2007 12 31.41898 05 27 50.97 +20 19 09.2          18.9 R EA008673
         K07Y56N 9C2007 12 31.42558 05 27 50.18 +20 20 06.6                 EA008673
         K07Y56N 9C2007 12 31.43183 05 27 49.54 +20 20 54.7                 EA008673
         K07Y56N 9C2007 12 31.43912 05 27 48.73 +20 21 56.2                 EA008673
         K07Y56N  C2007 12 31.48628 05 27 49.68 +20 30 41.5          18.3 R EA008474
         K07Y56N  C2007 12 31.48709 05 27 49.59 +20 30 48.1          18.2 R EA008474
         K07Y56N  C2007 12 31.48802 05 27 49.48 +20 30 55.6          18.0 R EA008474
         K07Y56N  C2007 12 31.85076 05 27 22.20 +21 17 36.2          18.5 R EA008143
         K07Y56N  C2007 12 31.85588 05 27 21.62 +21 18 17.4          18.5 R EA008143
         K07Y56N  C2007 12 31.86283 05 27 20.88 +21 19 12.2          18.4 R EA008143
         K07Y56N  C2007 12 31.91107 05 27 15.53 +21 25 34.9          18.1 R EA008A24
         K07Y56N  C2007 12 31.91228 05 27 15.40 +21 25 44.2          18.1 R EA008A24
         K07Y56N  C2007 12 31.91350 05 27 15.28 +21 25 53.6          18.3 R EA008A24
         K07Y56N  C2007 12 31.91472 05 27 15.16 +21 26 02.9          18.4 R EA008A24
         K07Y56N  C2007 12 31.91593 05 27 15.05 +21 26 12.6          18.4 R EA008A24
         K07Y56N  C2007 12 31.91714 05 27 14.85 +21 26 22.9          18.4 R EA008A24
         K07Y56N  C2007 12 31.91836 05 27 14.73 +21 26 31.5          18.4 R EA008A24
         K07Y56N  C2008 01 01.22829 05 26 51.44 +22 06 27.3                 EA008701
         K07Y56N  C2008 01 01.23940 05 26 50.16 +22 07 53.9                 EA008701
         K07Y56N  C2008 01 01.25051 05 26 48.92 +22 09 13.8                 EA008701
         K07Y56N  C2008 01 01.26162 05 26 47.50 +22 10 39.5                 EA008701
         K07Y56N  C2008 01 01.27273 05 26 46.40 +22 11 59.3                 EA008701
         K07Y56N  C2008 01 01.28837 05 26 44.71 +22 13 54.4          18.2 V EA008G96
         K07Y56N  C2008 01 01.29517 05 26 43.95 +22 14 44.5          18.2 V EA008G96
         K07Y56N  C2008 01 01.30201 05 26 43.19 +22 15 34.9          18.2 V EA008G96
         K07Y56N  C2008 01 01.86548 05 26 06.01 +23 22 07.3          18.5 V EA008A17
         K07Y56N  C2008 01 01.87318 05 26 05.27 +23 23 00.2          18.6 V EA008A17
         K07Y56N  C2008 01 01.87858 05 26 04.77 +23 23 37.5          18.5 V EA008A17
    
    Observer details:
    143 Gnosca.  Observer S. Sposetti.  0.40-m f/4 reflector + CCD.
    147 Osservatorio Astronomico di Suno.  Observers P. Concari, D. Crespi,
        S. Foglia, G. Galli, S. Minuto.  Measurers D. Crespi, S. Foglia, G. Galli.
        0.40-m f/4 reflector + CCD.
    204 Schiaparelli Observatory.  Observer L. Buzzi.  0.60-m f/4.64 reflector
        + CCD.
    474 Mount John Observatory, Lake Tekapo.  Observer A. C. Gilmore.  1.0-m f/7.7
        reflector + CCD.
    595 Farra d'Isonzo.  Observers F. Piani, E. Pettarin.  Measurer F. Piani.
        0.40-m f/4.5 reflector + CCD.
    651 Grasslands Observatory, Tucson.  Observer J. E. McGaha.  0.62-m f/5.1
        Newtonian reflector + CCD.
    673 Table Mountain Observatory, Wrightwood.  Observer H. Rhoades.  0.61-m f/16
        Cassegrain + CCD.
    701 Junk Bond Observatory, Sierra Vista.  Observer D. Healy.  0.81-m f/4.4
        Ritchey-Chretien + 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.
    A17 Guidestar Observatory, Weinheim.  Observers M. Emmerich, S. Melchert.
        0.36-m f/6 Schmidt-Cassegrain + CCD.
    A24 New Millennium Observatory, Mozzate.  Observer E. Cozzi.  0.36-m f/7.6
        Schmidt-Cassegrain + CCD.
    G96 Mt. Lemmon Survey.  Observer E. C. Beshore.  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.  1.5-m reflector + CCD.
    H55 Astronomical Research Observatory, Charleston.  Observer R. Holmes.
        Measurer H. Devore.  0.61-m f/4.0 astrograph + CCD.
    
    Orbital elements:
    2007 YN56                                                Earth MOID = 0.0424 AU
    Epoch 2007 Oct. 27.0 TT = JDT 2454400.5                 MPC
    M  11.15242              (2000.0)            P               Q
    n   0.87952487     Peri.  251.71709     +0.96826911     +0.15378770
    a   1.0788738      Node    99.07520     -0.07422692     +0.92964062
    e   0.3311532      Incl.   11.50685     -0.23863213     +0.33483976
    P   1.12           H   23.0           G   0.15           U   7
    Residuals in seconds of arc
    071230 704  0.5+  0.8+    071231 701  0.1+  0.8+    071231 143  0.7+  0.3-
    071230 704  0.6+  0.2-    071231 704  0.0   0.2-    071231 143  0.4+  0.1+
    071230 704  0.1+  0.9+    071231 704  0.1-  0.4-    071231 143  0.7+  0.4-
    071230 704  0.0   0.5-    071231 704  0.2+  0.3-    071231 A24  0.2+  0.3+
    071230 704  0.3+  0.2+    071231 704  0.4+  0.1-    071231 A24  0.2+  0.2+
    071230 147  0.0   0.0     071231 701  0.8+  0.1+    071231 A24  0.5+  0.0
    071230 147  0.6-  0.1-    071231 704  0.6-  0.0     071231 A24  0.7+  0.3-
    071230 147  0.4+  0.0     071231 651  0.2-  0.3+    071231 A24  1.0+  0.1-
    071230 147  0.1+  0.2-    071231 704  0.7-  0.3-    071231 A24  0.1+  0.7+
    071231 147  0.1+  0.1-    071231 651  0.2+  0.2-    071231 A24  0.3+  0.2-
    071231 147  0.4-  0.1-    071231 651  0.1-  0.3+    080101 701  0.1-  0.7-
    071231 595  0.7-  0.7-    071231 704  0.3-  0.8-    080101 701  0.4-  2.5+
    071231 595  0.2-  0.2+    071231 704  0.0   0.4-    080101 701  0.0   0.8-
    071231 595  1.1-  0.6+    071231 704  0.1-  0.3-    080101 701  2.3-  2.0+
    071231 204  0.1+  0.2-    071231 704  0.7+  0.5+    080101 701  0.0   0.8-
    071231 204  0.0   0.3-    071231 704  0.8+  0.1+    080101 G96  0.1-  0.1+
    071231 204  0.0   0.5-    071231 673  0.1+  0.3-    080101 G96  0.1-  0.0
    071231 H55  0.1-  0.3-    071231 673  0.9-  2.6+    080101 G96  0.1-  0.0
    071231 H55  0.4-  0.1+    071231 673  0.4-  0.7-    080101 A17  0.2+  0.2-
    071231 H55  0.7-  0.2-    071231 673  0.9-  0.8+    080101 A17  0.1+  0.5-
    071231 704  1.0+  0.4+    071231 474  0.1+  0.3+    080101 A17  0.3+  0.4-
    071231 704  0.1+  0.7-    071231 474  0.2+  0.2+
    071231 704  0.1+  0.5-    071231 474  0.2+  0.1-
    
    Ephemeris:
    2007 YN56                a,e,i = 1.08, 0.33, 12                  q = 0.7216
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
    2007 12 26    05 39.85   +00 36.8    0.0550   1.034   155.6    23.2    17.9
    2007 12 28    05 34.28   +09 53.8    0.0647   1.045   161.9    17.0    18.1
    2007 12 30    05 30.18   +16 38.8    0.0758   1.056   163.7    15.2    18.4
    2008 01 01    05 27.14   +21 37.7    0.0879   1.067   162.5    16.1    18.7
    2008 01 03    05 24.89   +25 23.0    0.101    1.078   160.1    18.1    19.1
    2008 01 05    05 23.28   +28 16.6    0.114    1.089   157.4    20.3    19.5
    2008 01 07    05 22.20   +30 33.0    0.128    1.100   154.8    22.3    19.8
    2008 01 09    05 21.57   +32 21.8    0.142    1.111   152.4    24.3    20.1
    2008 01 11    05 21.35   +33 49.8    0.156    1.121   150.0    26.0    20.4
    2008 01 13    05 21.48   +35 01.7    0.171    1.132   147.9    27.5    20.7
    2008 01 15    05 21.93   +36 01.0    0.186    1.142   145.8    29.0    20.9
    2008 01 17    05 22.67   +36 50.3    0.201    1.152   143.9    30.2    21.1
    2008 01 19    05 23.68   +37 31.4    0.217    1.162   142.0    31.4    21.3
    2008 01 21    05 24.93   +38 05.8    0.232    1.172   140.2    32.5    21.5
    2008 01 23    05 26.39   +38 34.6    0.248    1.182   138.5    33.5    21.7
    2008 01 25    05 28.05   +38 58.7    0.265    1.191   136.9    34.4    21.9
    
    Timothy B. Spahr             (C) Copyright 2008 MPC           M.P.E.C. 2008-A08
    

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