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  • MPEC 2017-U70 : 2017 UA1

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    M.P.E.C. 2017-U70                                Issued 2017 Oct. 19, 15:27 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 UA1
    
    Observations:
         K17U01A* C2017 10 16.23487 00 24 18.61 +05 00 47.2          20.7 GUEU070G96
         K17U01A  C2017 10 16.24008 00 24 17.28 +05 00 58.2          20.7 GUEU070G96
         K17U01A  C2017 10 16.24530 00 24 15.91 +05 01 09.3          20.9 GUEU070G96
         K17U01A  C2017 10 16.25052 00 24 14.59 +05 01 20.7          21.3 GUEU070G96
         K17U01A  C2017 10 16.38733 00 23 39.41 +05 06 12.8          21.0 GUEU070I52
         K17U01A  C2017 10 16.38957 00 23 38.85 +05 06 17.4          20.7 GUEU070I52
         K17U01A  C2017 10 16.39167 00 23 38.30 +05 06 21.9          20.7 GUEU070I52
         K17U01A  C2017 10 16.39377 00 23 37.75 +05 06 26.2          20.2 GUEU070I52
         K17U01A KC2017 10 16.43015 00 23 28.49 +05 07 44.7                oEU070691
         K17U01A KC2017 10 16.44395 00 23 25.05 +05 08 14.1                oEU070691
         K17U01A  C2017 10 17.25423 00 20 04.02 +05 37 30.7          20.6 GUEU070I52
         K17U01A  C2017 10 17.25846 00 20 02.91 +05 37 40.1          20.7 GUEU070I52
         K17U01A  C2017 10 17.26057 00 20 02.40 +05 37 44.4          20.6 GUEU070I52
         K17U01A KC2017 10 18.11849500 16 25.79 +06 09 15.3          21.1 VuEU070H21
         K17U01A KC2017 10 18.11939 00 16 25.73 +06 09 17.2          20.5 RqEU070H36
         K17U01A KC2017 10 18.13187500 16 22.25 +06 09 45.1          21.3 VuEU070H21
         K17U01A KC2017 10 18.14525300 16 18.72 +06 10 15.2          21.2 VuEU070H21
         K17U01A KC2017 10 18.15094 00 16 17.52 +06 10 27.0          20.6 RqEU070H36
         K17U01A KC2017 10 18.16670 00 16 13.26 +06 11 03.1          19.9 RqEU070H36
         K17U01A KC2017 10 18.24801 00 15 52.11 +06 14 08.2          20.4 RoEU070291
         K17U01A KC2017 10 18.25054 00 15 51.39 +06 14 13.9          20.7 RoEU070291
         K17U01A KC2017 10 18.25308 00 15 50.77 +06 14 19.3                oEU070291
         K17U01A KC2017 10 19.23942 00 11 37.34 +06 51 25.3          20.8 RoEU070291
         K17U01A KC2017 10 19.24256 00 11 36.48 +06 51 32.3          20.7 RoEU070291
         K17U01A KC2017 10 19.24572 00 11 35.65 +06 51 39.8          20.4 RoEU070291
    
    Observer details:
    291 LPL/Spacewatch II.  Observer R. A. Mastaler.  1.8-m f/2.7 reflector + CCD.
    691 Steward Observatory, Kitt Peak.  Observer T. H. Bressi.  0.9-m f/3
        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.
    H36 Sandlot Observatory, Scranton.  Observer G. Hug.  0.56-m reflector + CCD.
    I52 Steward Observatory, Mt. Lemmon Station.  Observer R. G. Matheny.
        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 UA1                                                 Earth MOID = 0.1740 AU
    Epoch 2017 Sept. 4.0 TT = JDT 2458000.5                 MPC
    M 287.99949              (2000.0)            P               Q
    n   0.54638168     Peri.   91.78492     -0.32040130     -0.94233520
    a   1.4818536      Node    17.85084     +0.69417923     -0.30301418
    e   0.3683242      Incl.   18.38479     +0.64456047     -0.14208018
    P   1.80           H   22.4           G   0.15           U   8
    Residuals in seconds of arc
    171016 G96  0.3-  0.1-    171016 691  0.4+  0.4+    171018 H36  0.2+  0.2-
    171016 G96  0.1-  0.3-    171017 I52  0.2-  0.1+    171018 291  0.2-  0.2+
    171016 G96  0.4-  0.3-    171017 I52  0.2-  0.2+    171018 291  0.8-  0.2+
    171016 G96  0.0   0.1-    171017 I52  0.5+  0.1-    171018 291  0.0   0.1-
    171016 I52  0.2+  0.1+    171018 H21  0.0   0.1-    171019 291  0.1+  0.1+
    171016 I52  0.4+  0.1-    171018 H36  0.4-  0.3-    171019 291  0.1-  0.1-
    171016 I52  0.2+  0.1-    171018 H21  0.1-  0.2-    171019 291  0.2+  0.2+
    171016 I52  0.0   0.3-    171018 H21  0.1+  0.1+
    171016 691  0.4-  0.4+    171018 H36  1.5+  1.1-
    
    Ephemeris:
    2017 UA1                 a,e,i = 1.48, 0.37, 18                  q = 0.9361
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
    2017 09 19    01 38 30.3 -05 16 04   0.4671  1.4326   151.5    19.5    22.5
    ...
    2017 10 04    01 07 39.2 -01 01 03   0.3534  1.3507   171.2     6.5    21.3
    ...
    2017 10 12    00 41 01.3 +02 38 35   0.3106  1.3061   171.7     6.3    20.9
    ...
    2017 10 18    00 16 55.6 +06 05 07   0.2880  1.2725   161.3    14.5    21.0
    2017 10 19    00 12 39.4 +06 42 32   0.2850  1.2670   159.5    16.0    21.1
    2017 10 20    00 08 20.0 +07 20 41   0.2823  1.2614   157.5    17.6    21.1
    ...
    2017 10 26    23 41 45.5 +11 20 54   0.2710  1.2279   145.9    27.0    21.2
    ...
    2017 11 03    23 06 56.5 +16 51 26   0.2672  1.1838   130.7    39.4    21.5
    ...
    2017 11 18    22 12 37.6 +26 20 03   0.2829  1.1046   106.9    58.9    22.0
    
    A. U. Tomatic                (C) Copyright 2017 MPC           M.P.E.C. 2017-U70
    

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