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Minor Planet Center

MPEC 2008-U79 : 2008 UN90

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M.P.E.C. 2008-U79                                Issued 2008 Oct. 28, 12:33 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

                                   2008 UN90

Observations:
     K08U90N* C2008 10 27.18994 00 03 26.85 -10 58 12.1          19.4 V EU079703
     K08U90N  C2008 10 27.19850 00 03 26.17 -10 57 42.8          18.9 V EU079703
     K08U90N  C2008 10 27.20698 00 03 25.41 -10 57 13.2          19.3 V EU079703
     K08U90N  C2008 10 27.21550 00 03 24.66 -10 56 45.1          19.3 V EU079703
     K08U90N  C2008 10 27.29425 00 03 18.03 -10 52 18.7          19.2 V EU079703
     K08U90N  C2008 10 27.29597 00 03 17.85 -10 52 12.0          18.5 V EU079703
     K08U90N  C2008 10 27.29767 00 03 17.71 -10 52 06.8          19.1 V EU079703
     K08U90N  C2008 10 27.29936 00 03 17.56 -10 52 00.8          18.9 V EU079703
     K08U90N  C2008 10 27.48763600 03 04.40 -10 40 57.1          18.4 R EU079E10
     K08U90N  C2008 10 27.48884400 03 04.30 -10 40 53.2          18.7 R EU079E10
     K08U90N  C2008 10 27.49045800 03 04.17 -10 40 47.6          18.8 R EU079E10
     K08U90N  C2008 10 27.49159200 03 04.07 -10 40 43.9          18.7 R EU079E10
     K08U90N  C2008 10 27.50199 00 03 03.61 -10 40 37.2          18.9 R EU079300
     K08U90N  C2008 10 27.50408 00 03 03.48 -10 40 30.2          19.0 R EU079300
     K08U90N  C2008 10 27.50824 00 03 03.07 -10 40 16.7          19.2 R EU079300
     K08U90N  C2008 10 27.51033 00 03 02.91 -10 40 09.3          19.2 R EU079300
     K08U90N  C2008 10 27.79448 00 02 42.74 -10 24 16.7                 EU079J95
     K08U90N  C2008 10 27.81153 00 02 41.36 -10 23 19.1          19.1 R EU079J95
     K08U90N  C2008 10 28.14887 00 02 17.28 -10 04 23.0          19.6 V EU079291
     K08U90N  C2008 10 28.15280 00 02 16.95 -10 04 09.7          19.3 V EU079291
     K08U90N  C2008 10 28.15654 00 02 16.66 -10 03 57.3          19.3 V EU079291
     K08U90N 5C2008 10 28.16863 00 02 15.87 -10 03 18.1          19.2 R EU079673
     K08U90N 5C2008 10 28.18275 00 02 14.76 -10 02 30.4                 EU079673
     K08U90N 5C2008 10 28.19444 00 02 13.85 -10 01 51.4                 EU079673
     K08U90N 5C2008 10 28.21019 00 02 12.59 -10 00 58.6                 EU079673
     K08U90N  C2008 10 28.21951 00 02 11.53 -10 00 27.6          19.0 R EU079H01
     K08U90N  C2008 10 28.22102 00 02 11.42 -10 00 22.6          18.9 R EU079H01
     K08U90N  C2008 10 28.22325 00 02 11.24 -10 00 15.1          18.9 R EU079H01
     K08U90N  C2008 10 28.22634 00 02 11.00 -10 00 04.8          19.0 R EU079H01

Observer details:
291 LPL/Spacewatch II.  Observer T. H. Bressi.  1.8-m f/2.7 reflector + CCD.
300 Bisei Spaceguard Center--BATTeRS.  Observers A. Asami, N. Hashimoto.
    1.0-m f/3.0 reflector + CCD.
673 Table Mountain Observatory, Wrightwood.  Observer J. Young.  0.61-m f/16
    Cassegrain + CCD.
703 Catalina Sky Survey.  Observer A. R. Gibbs.  Measurers E. C. Beshore,
    G. J. Garradd, A. R. Gibbs, A. D. Grauer, R. E. Hill, R. A. Kowalski,
    S. M. Larson, R. H. McNaught, A. Boattini.  0.68-m Schmidt + CCD.
E10 Siding Spring-Faulkes Telescope South.  Observer R. Miles.  2.0-m f/10.0
    Ritchey-Chretien + CCD.
H01 Magdalena Ridge Observatory, Socorro.  Observers W. H. Ryan, E. V. Ryan.
    Measurer W. H. Ryan.  2.4-m f/8.9 reflector + CCD.
J95 Great Shefford.  Observer P. Birtwhistle.  0.40-m f/6.0 Schmidt-Cassegrain
    + CCD.

Orbital elements:
2008 UN90                                                Earth MOID = 0.2657 AU
Epoch 2008 Nov. 30.0 TT = JDT 2454800.5                 MPC
M  55.44049              (2000.0)            P               Q
n   0.59907537     Peri.  306.68653     +0.92003435     +0.35426952
a   1.3936329      Node    33.51341     -0.18518108     +0.76966310
e   0.1251154      Incl.   17.65152     -0.34531834     +0.53114201
P   1.65           H   19.9           G   0.15           U   8
Residuals in seconds of arc
081027 703  0.3-  0.4-    081027 E10  0.1+  0.0     081028 291  0.3-  0.0
081027 703  0.4+  0.1-    081027 E10  0.0   0.2-    081028 673  0.2+  0.5-
081027 703  0.1-  0.8+    081027 300  0.0   0.3+    081028 673  0.3+  0.1+
081027 703  0.4-  0.1+    081027 300  0.6+  0.3+    081028 673  0.6+  0.1+
081027 703  0.2+  0.6-    081027 300  0.3-  0.3-    081028 673  0.4+  0.3+
081027 703  0.3-  0.2+    081027 300  0.1-  0.1+    081028 H01  0.2-  0.0
081027 703  0.3-  0.4-    081027 J95  0.6+  0.1-    081028 H01  0.0   0.1-
081027 703  0.4-  0.1-    081027 J95  0.1-  0.4+    081028 H01  0.1-  0.0
081027 E10  0.0   0.0     081028 291  0.1-  0.1-    081028 H01  0.0   0.1-
081027 E10  0.0   0.2-    081028 291  0.4-  0.0

Ephemeris:
2008 UN90                a,e,i = 1.39, 0.13, 18                  q = 1.2193
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2008 10 21    00 13.08   -16 58.4    0.300    1.252   144.4    27.5    19.0
2008 10 31    23 59.31   -07 28.4    0.336    1.265   138.6    31.3    19.4
2008 11 10    23 54.33   +00 41.2    0.388    1.279   131.1    35.7    19.8
2008 11 20    23 56.36   +07 21.6    0.450    1.294   123.9    39.3    20.3
2008 11 30    00 03.83   +12 47.9    0.522    1.311   117.4    41.9    20.7
2008 12 10    00 15.59   +17 19.4    0.599    1.329   111.7    43.5    21.1
2008 12 20    00 30.74   +21 11.0    0.681    1.347   106.5    44.5    21.4
2008 12 30    00 48.72   +24 33.0    0.766    1.365   101.9    44.8    21.7
2009 01 09    01 09.20   +27 32.5    0.852    1.383    97.6    44.8    22.0

Timothy B. Spahr             (C) Copyright 2008 MPC           M.P.E.C. 2008-U79

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