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  • MPEC 2017-U271: 2017 UG8

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    M.P.E.C. 2017-U271                               Issued 2017 Oct. 29, 17:05 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 UG8
    
    Observations:
         K17U08G* C2017 10 27.32503 01 27 22.275+28 09 46.47         21.5 iLEU271F51
         K17U08G  C2017 10 27.34712 01 27 25.485+28 09 22.83         21.1 iLEU271F51
         K17U08G  C2017 10 27.35827 01 27 27.077+28 09 10.72         21.6 iLEU271F51
         K17U08G  C2017 10 28.23261 01 29 55.82 +27 52 05.7          20.9 GUEU271V06
         K17U08G  C2017 10 28.23516 01 29 56.21 +27 52 02.6          21.0 GUEU271V06
         K17U08G  C2017 10 28.23772 01 29 56.61 +27 51 59.7          21.2 GUEU271V06
         K17U08G  C2017 10 28.24027 01 29 56.98 +27 51 56.6          21.1 GUEU271V06
         K17U08G KC2017 10 28.37711 01 30 18.11 +27 49 08.7          21.4 RoEU271291
         K17U08G KC2017 10 28.38276 01 30 18.99 +27 49 00.6          21.7 RoEU271291
         K17U08G KC2017 10 28.38842 01 30 19.86 +27 48 53.0          21.5 RoEU271291
         K17U08G KC2017 10 29.16935 01 32 42.83 +27 32 37.9          21.1 RoEU271291
         K17U08G KC2017 10 29.17691 01 32 44.05 +27 32 28.8          21.5 RoEU271291
         K17U08G KC2017 10 29.18448 01 32 45.27 +27 32 19.9          21.4 RoEU271291
         K17U08G  C2017 10 29.21154 01 32 49.63 +27 31 46.7          21.2 RoEU271926
         K17U08G KC2017 10 29.21516 01 32 49.79 +27 31 43.6                oEU271711
         K17U08G  C2017 10 29.21806 01 32 50.62 +27 31 38.4          20.9 RoEU271926
         K17U08G KC2017 10 29.21832 01 32 50.25 +27 31 39.6                oEU271711
         K17U08G KC2017 10 29.22142 01 32 50.74 +27 31 35.8                oEU271711
         K17U08G  C2017 10 29.22455 01 32 51.67 +27 31 30.4          21.5 RoEU271926
         K17U08G  C2017 10 29.26170 01 32 57.60 +27 30 41.8          21.3 GUEU271G96
         K17U08G  C2017 10 29.26281 01 32 57.75 +27 30 40.5          20.9 GUEU271G96
         K17U08G  C2017 10 29.26391 01 32 57.94 +27 30 38.8          21.2 GUEU271G96
         K17U08G  C2017 10 29.26501 01 32 58.13 +27 30 37.5          21.5 GUEU271G96
    
    Observer details:
    291 LPL/Spacewatch II.  Observers J. V. Scotti, M. J. Brucker.  1.8-m f/2.7
        reflector + CCD.
    711 McDonald Observatory.  Observer J. G. Ries.  2.1-m reflector + CCD + focal
        reducer.
    926 Tenagra II Observatory.  Observers M. Schwartz, P. R. Holvorcem.  Measurer
        M. Schwartz.  0.81-m f/7 Ritchey-Chretien + CCD.
    F51 Pan-STARRS 1, Haleakala.  Observers J. Bulger, T. Lowe, A. Schultz,
        M. Willman.  Measurers K. Chambers, S. Chastel, L. Denneau, H. Flewelling,
        M. Huber, E. Lilly, E. Magnier, R. Wainscoat, C. Waters, R. Weryk.  1.8-m
        Ritchey-Chretien + CCD.
    G96 Mt. Lemmon Survey.  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.
        1.5-m reflector + 10K CCD.
    V06 Catalina Sky Survey-Kuiper.  Observer E. J. Christensen.  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.  1.55-m reflector + CCD.
    
    Orbital elements:
    2017 UG8                                                 Earth MOID = 0.1220 AU
    Epoch 2017 Sept. 4.0 TT = JDT 2458000.5                 MPC
    M 331.31525              (2000.0)            P               Q
    n   0.34280140     Peri.  190.26616     +0.45003925     -0.88689600
    a   2.0219682      Node   233.06577     +0.82829271     +0.45822339
    e   0.4523749      Incl.    7.49820     +0.33376017     +0.05870957
    P   2.88           H   24.4           G   0.15           U   7
    Residuals in seconds of arc
    171027 F51  0.1+  0.1+    171028 291  0.1+  0.1+    171029 711  0.5-  0.0
    171027 F51  0.1+  0.0     171028 291  0.2-  0.1-    171029 711  0.5-  0.1+
    171027 F51  0.2-  0.1-    171029 291  0.3+  0.1+    171029 926  0.1-  0.0
    171028 V06  0.1+  0.1-    171029 291  0.1+  0.1+    171029 G96  0.1+  0.4-
    171028 V06  0.1+  0.2-    171029 291  0.0   0.4+    171029 G96  0.3-  0.3-
    171028 V06  0.2+  0.1-    171029 926  0.5+  0.0     171029 G96  0.1-  0.6-
    171028 V06  0.1-  0.2-    171029 711  0.1+  0.0     171029 G96  0.1+  0.4-
    171028 291  0.3+  0.9+    171029 926  0.3-  0.2-
    
    Ephemeris:
    2017 UG8                 a,e,i = 2.02, 0.45, 7                   q = 1.1073
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
    2017 09 29    00 42 57.8 +29 34 34   0.2973  1.2724   152.2    21.5    23.3
    ...
    2017 10 14    00 59 38.3 +30 22 34   0.2204  1.2038   157.3    18.6    22.5
    ...
    2017 10 22    01 14 10.5 +29 28 51   0.1875  1.1733   160.0    16.8    22.0
    ...
    2017 10 28    01 29 14.8 +27 56 48   0.1667  1.1536   162.4    15.1    21.7
    2017 10 29    01 32 10.2 +27 36 23   0.1636  1.1507   162.9    14.7    21.6
    2017 10 30    01 35 13.1 +27 14 25   0.1605  1.1478   163.3    14.4    21.5
    ...
    2017 11 05    01 56 10.3 +24 27 41   0.1445  1.1324   166.4    11.9    21.2
    ...
    2017 11 13    02 30 44.4 +19 07 15   0.1295  1.1174   170.0     8.8    20.8
    ...
    2017 11 28    03 45 34.8 +06 06 54   0.1255  1.1073   163.3    14.9    20.9
    
    A. U. Tomatic                (C) Copyright 2017 MPC           M.P.E.C. 2017-U271
    

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