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  • MPEC 2017-U81 : 2017 UO1

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    M.P.E.C. 2017-U81                                Issued 2017 Oct. 19, 16:49 UT
    
         The Minor Planet Electronic Circulars contain information on unusual
             minor planets and routine data on comets.  They are published
        on behalf of Division F 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
    
                                       2017 UO1
    
    Observations:
         K17U01O* C2017 10 17.27889 01 38 41.06 -05 49 31.7          20.6 GUEU081G96
         K17U01O  C2017 10 17.28421 01 38 43.26 -05 49 22.1          20.5 GUEU081G96
         K17U01O  C2017 10 17.28946 01 38 45.45 -05 49 12.8          20.8 GUEU081G96
         K17U01O  C2017 10 17.29474 01 38 47.64 -05 49 03.3          20.4 GUEU081G96
         K17U01O  C2017 10 17.38376 01 39 24.91 -05 46 23.2          19.6 GUEU081I52
         K17U01O  C2017 10 17.38502 01 39 25.54 -05 46 20.6          20.2 GUEU081I52
         K17U01O  C2017 10 17.38630 01 39 26.07 -05 46 18.0          20.1 GUEU081I52
         K17U01O  C2017 10 17.38760 01 39 26.62 -05 46 15.8          20.4 GUEU081I52
         K17U01O KC2017 10 18.27226501 46 22.44 -05 18 39.6          20.5 VuEU081H21
         K17U01O KC2017 10 18.27763501 46 24.83 -05 18 29.1          20.8 VuEU081H21
         K17U01O KC2017 10 18.28358101 46 27.50 -05 18 17.4          20.4 VuEU081H21
         K17U01O  C2017 10 18.29541 01 46 34.95 -05 17 44.8          21.4 GUEU081I52
         K17U01O  C2017 10 18.29665 01 46 35.50 -05 17 42.6          22.0 GUEU081I52
         K17U01O  C2017 10 18.29789 01 46 36.05 -05 17 39.2          21.4 GUEU081I52
         K17U01O KC2017 10 18.31437 01 46 43.47 -05 17 06.0          20.7 RoEU081291
         K17U01O KC2017 10 18.31519 01 46 43.87 -05 17 05.1          20.8 RoEU081291
         K17U01O KC2017 10 18.31600 01 46 44.22 -05 17 03.4          20.6 RoEU081291
         K17U01O KC2017 10 18.62191 01 49 11.04 -05 04 42.5          20.8 RUEU081474
         K17U01O KC2017 10 18.62547 01 49 12.65 -05 04 34.8          20.7 RUEU081474
         K17U01O KC2017 10 18.62903 01 49 14.34 -05 04 27.7          20.3 RUEU081474
    
    Observer details:
    291 LPL/Spacewatch II.  Observer R. A. Mastaler.  1.8-m f/2.7 reflector + CCD.
    474 Mount John Observatory, Lake Tekapo.  Observers A. C. Gilmore,
        P. M. Kilmartin.  Measurer P. M. Kilmartin.  1.0-m f/7.7 reflector + CCD.
    G96 Mt. Lemmon Survey.  Observer A. D. Grauer.  Measurers E. J. Christensen,
        D. C. Fuls, A. R. Gibbs, A. D. Grauer, J. A. Johnson, R. A. Kowalski,
        S. M. Larson, G. J. Leonard, R. G. Matheny, R. L. Seaman, F. C. Shelly.
        1.5-m reflector + 10K CCD.
    H21 Astronomical Research Observatory, Westfield.  Observer R. Holmes.
        Measurers S. Foglia, L. Buzzi, T. Linder, R. Holmes.  0.81-m f/4.0
        astrograph + CCD.
    I52 Steward Observatory, Mt. Lemmon Station.  Observers R. G. Matheny,
        R. A. Kowalski.  Measurers E. J. Christensen, D. C. Fuls, A. R. Gibbs,
        A. D. Grauer, J. A. Johnson, R. A. Kowalski, S. M. Larson, G. J. Leonard,
        R. G. Matheny, R. L. Seaman, F. C. Shelly.  1.0-m reflector + CCD.
    
    Orbital elements:
    2017 UO1                                                 Earth MOID = 0.0569 AU
    Epoch 2017 Sept. 4.0 TT = JDT 2458000.5                 MPC
    M 344.01639              (2000.0)            P               Q
    n   0.24340476     Peri.  336.10721     +0.65623343     -0.75407019
    a   2.5404852      Node    72.86771     +0.69678624     +0.59180234
    e   0.5886004      Incl.    1.62660     +0.28956281     +0.28486512
    P   4.05           H   25.2           G   0.15           U   7
    Residuals in seconds of arc
    171017 G96  0.3+  0.3-    171017 I52  0.2+  0.2+    171018 291  0.3-  0.5+
    171017 G96  0.0   0.1-    171018 H21  0.3+  0.1-    171018 291  0.1+  0.2-
    171017 G96  0.0   0.1-    171018 H21  0.1-  0.2-    171018 291  0.0   0.1-
    171017 G96  0.1-  0.0     171018 H21  0.2-  0.3-    171018 474  0.5+  0.2-
    171017 I52  1.0-  0.2-    171018 I52  0.2+  0.1-    171018 474  0.4-  0.2+
    171017 I52  0.4+  0.1+    171018 I52  0.1+  0.4-    171018 474  0.0   0.1-
    171017 I52  0.2+  0.4+    171018 I52  0.1+  0.6+
    
    Ephemeris:
    2017 UO1                 a,e,i = 2.54, 0.59, 2                   q = 1.0452
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
    2017 09 19    00 03 15.3 -09 12 23   0.2220  1.2244   171.2     7.2    22.9
    ...
    2017 10 04    00 33 06.8 -09 06 24   0.1428  1.1397   166.6    11.8    22.0
    ...
    2017 10 12    01 05 21.6 -07 47 07   0.1089  1.1036   164.9    13.6    21.4
    ...
    2017 10 18    01 44 12.9 -05 26 20   0.08805 1.0816   164.7    14.1    20.9
    2017 10 19    01 52 22.1 -04 52 42   0.08506 1.0784   164.6    14.2    20.8
    2017 10 20    02 01 04.1 -04 15 36   0.08224 1.0753   164.5    14.4    20.7
    ...
    2017 10 26    03 05 13.2 +00 44 26   0.06948 1.0598   160.4    18.4    20.5
    ...
    2017 11 03    04 51 43.4 +09 22 55   0.06666 1.0477   145.5    32.4    20.8
    ...
    2017 11 18    07 13 20.4 +18 25 45   0.09815 1.0519   128.1    47.7    22.1
    
    A. U. Tomatic                (C) Copyright 2017 MPC           M.P.E.C. 2017-U81
    

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