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IAU Minor Planet Center

Minor Planet Center

MPEC 2005-Y18 : 2005 YS

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M.P.E.C. 2005-Y18                                Issued 2005 Dec. 22, 17:22 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.

                  Supported in part by the Brinson Foundation
                  Supported in part by the TABASGO Foundation
             Prepared using the Tamkin Foundation Computer Network

                              MPC@CFA.HARVARD.EDU
          URL http://cfa-www.harvard.edu/iau/mpc.html  ISSN 1523-6714

                                    2005 YS

Observations:
     K05Y00S* C2005 12 21.13684 00 17 22.10 +52 38 13.0          18.3   EY018704
     K05Y00S  C2005 12 21.15004 00 17 24.13 +52 36 52.2          18.6   EY018704
     K05Y00S  C2005 12 21.16351 00 17 26.18 +52 35 29.8          18.6   EY018704
     K05Y00S  C2005 12 21.17692 00 17 28.27 +52 34 07.4          18.9   EY018704
     K05Y00S  C2005 12 21.18986 00 17 30.29 +52 32 48.0          18.7   EY018704
     K05Y00S  C2005 12 22.00980 00 19 48.92 +51 10 51.3          18.5 R EY018734
     K05Y00S  C2005 12 22.01060 00 19 49.03 +51 10 46.6          18.4 R EY018734
     K05Y00S  C2005 12 22.01302 00 19 49.41 +51 10 32.0                 EY018734
     K05Y00S  C2005 12 22.01505 00 19 49.69 +51 10 20.3                 EY018734
     K05Y00S  C2005 12 22.01582 00 19 49.77 +51 10 14.8                 EY018734
     K05Y00S  C2005 12 22.01660 00 19 49.87 +51 10 10.6          18.7 R EY018734
     K05Y00S  C2005 12 22.12534 00 20 06.22 +50 59 26.3                 EY018701
     K05Y00S  C2005 12 22.13575 00 20 07.70 +50 58 23.7                 EY018701

Observer details:
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, L. Manguso,
    D. Torres, R. Kracke, A. Milner, H. Love.  Measurers J. Stuart, R. Sayer,
    J. Evans, J. Kommers.  1.0-m f/2.15 reflector + CCD.
734 Farpoint Observatory.  Observer G. Hug.  0.7-m reflector + CCD.

Orbital elements:
2005 YS                                                              PHA 0.046
Epoch 2006 Mar. 6.0 TT = JDT 2453800.5                  MPC
M 313.15934              (2000.0)            P               Q
n   1.62572090     Peri.  328.06966     -0.21586691     +0.91771834
a   0.7163172      Node   287.58772     -0.80602920     -0.36023602
e   0.5432472      Incl.   20.47570     -0.55110652     +0.16740090
P   0.61           H   19.3           G   0.15           U   9
Residuals in seconds of arc
051221 704  0.1-  0.1-    051222 734  0.0   0.1+    051222 734  0.3-  0.1-
051221 704  0.0   0.1-    051222 734  0.0   0.2+    051222 701  0.1+  0.1+
051221 704  0.1-  0.1+    051222 734  0.3+  0.0     051222 701  0.1-  0.0
051221 704  0.1+  0.0     051222 734  0.1+  0.4+
051221 704  0.2+  0.1+    051222 734  0.2-  0.6-

Ephemeris:
2005 YS                  a,e,i = 0.72, 0.54, 21                  q = 0.3264
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2005 12 16    00 00.35   +61 32.8    0.246    1.105   113.4    54.8    18.5
2005 12 26    00 29.75   +44 49.8    0.267    1.096   108.2    58.5    18.7
2006 01 05    00 49.88   +31 28.8    0.304    1.074    99.1    64.7    19.2
2006 01 15    01 06.20   +21 35.7    0.349    1.038    89.0    71.4    19.6
2006 01 25    01 19.67   +14 08.8    0.393    0.988    79.0    78.0    20.0
2006 02 04    01 29.97   +08 07.4    0.432    0.923    68.9    85.2    20.3

Timothy B. Spahr             (C) Copyright 2005 MPC           M.P.E.C. 2005-Y18

Read MPEC 2005-Y17 Read MPEC 2005-Y19


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