• MPC Preparation (Info)

  • MPEC 2018-U39 : 2018 UD1

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    M.P.E.C. 2018-U39                                Issued 2018 Oct. 20, 22:05 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
    
                                       2018 UD1
    
    Observations:
         K18U01D* C2018 10 17.58580 03 39 14.063+02 35 17.22         21.2 wUEU039F52
         K18U01D  C2018 10 17.59905 03 39 16.536+02 35 00.38         21.2 wUEU039F52
         K18U01D  C2018 10 17.61227 03 39 19.024+02 34 43.71         21.4 wUEU039F52
         K18U01D  C2018 10 17.62550 03 39 21.546+02 34 26.36         21.3 wUEU039F52
         K18U01D KC2018 10 18.27875 03 41 35.25 +02 20 13.8          21.2 RoEU039291
         K18U01D KC2018 10 18.28476 03 41 36.42 +02 20 06.2          21.2 RoEU039291
         K18U01D KC2018 10 18.29074 03 41 37.59 +02 19 58.2          21.2 RoEU039291
         K18U01D  C2018 10 18.31517 03 41 42.33 +02 19 25.8          20.6 GVEU039I52
         K18U01D  C2018 10 18.32128 03 41 43.49 +02 19 17.6          21.2 GVEU039I52
         K18U01D  C2018 10 18.32433 03 41 44.08 +02 19 13.5          21.2 GVEU039I52
         K18U01D KC2018 10 18.33463503 41 45.40 +02 18 57.0          20.9 VuEU039H21
         K18U01D KC2018 10 18.34257303 41 46.93 +02 18 46.1          21.3 VuEU039H21
         K18U01D KC2018 10 18.35214703 41 48.79 +02 18 34.1          21.7 VuEU039H21
         K18U01D KC2018 10 19.12074003 44 28.06 +02 01 13.7          21.4 GVEU039L01
         K18U01D KC2018 10 19.12345803 44 28.61 +02 01 10.2          21.5 GVEU039L01
         K18U01D KC2018 10 19.12423503 44 28.77 +02 01 09.1          21.4 GVEU039L01
         K18U01D KC2018 10 20.49732 03 49 27.20 +01 28 35.8          20.9 RoEU039291
         K18U01D KC2018 10 20.50632 03 49 29.13 +01 28 22.9          20.9 RoEU039291
    
    Observer details:
    291 LPL/Spacewatch II.  Observers R. A. Mastaler, R. S. McMillan.  1.8-m f/2.7
        reflector + CCD.
    F52 Pan-STARRS 2, Haleakala.  Observers J. Bulger, T. Dukes, T. Lowe,
        A. Schultz, M. Willman.  Measurers K. Chambers, S. Chastel, L. Denneau,
        H. Flewelling, M. Huber, E. Magnier, Y. Ramanjooloo, R. Wainscoat,
        C. Waters, R. Weryk.  1.8-m Ritchey-Chretien + CCD.
    H21 Astronomical Research Observatory, Westfield.  Observer R. Holmes.
        Measurers S. Foglia, L. Buzzi, T. Linder, R. Holmes.  0.76-m f/3.0
        astrograph + CCD.
    I52 Steward Observatory, Mt. Lemmon Station.  Observer R. A. Kowalski.
        Measurers B. M. Africano, E. J. Christensen, G. A. Farneth, D. C. Fuls,
        A. R. Gibbs, A. D. Grauer, H. Groeller, J. A. Johnson, R. A. Kowalski,
        S. M. Larson, G. J. Leonard, R. L. Seaman, F. C. Shelly.  1.0-m reflector
        + CCD.
    L01 Visnjan Observatory, Tican.  Observer K. Korlevic.  1.0-m f/2.9 reflector
        + CCD.
    
    Orbital elements:
    2018 UD1                                                 Earth MOID = 0.0280 AU
    Epoch 2019 Apr. 27.0 TT = JDT 2458600.5                 MPC
    M  33.63626              (2000.0)            P               Q
    n   0.25949566     Peri.  307.72392     -0.17046687     -0.98470618
    a   2.4343479      Node   152.02748     +0.92647435     -0.17260734
    e   0.6150368      Incl.    4.39979     +0.33553886     -0.02367389
    P   3.80           H   22.5           G   0.15           U   8
    Residuals in seconds of arc
    181017 F52  0.0   0.1-    181018 291  0.1+  0.1+    181018 H21  0.2-  0.4+
    181017 F52  0.2-  0.0     181018 I52  0.3+  0.1+    181019 L01  0.2+  0.2+
    181017 F52  0.1-  0.2+    181018 I52  0.1-  0.1-    181019 L01  0.2+  0.4+
    181017 F52  0.2+  0.2-    181018 I52  0.1-  0.1-    181019 L01  0.2+  0.4+
    181018 291  0.1+  0.1-    181018 H21  0.0   0.1+    181020 291  0.0   0.4-
    181018 291  0.0   0.2+    181018 H21  0.2-  0.3-    181020 291  0.1-  0.1+
    
    Ephemeris:
    2018 UD1                 a,e,i = 2.43, 0.62, 4                   q = 0.9371
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
    2018 09 20    02 36 45.0 +07 41 06   0.5756  1.4783   137.0    27.6    23.4
    ...
    2018 10 05    03 05 37.8 +05 52 08   0.4056  1.3503   144.2    25.6    22.4
    ...
    2018 10 13    03 25 22.3 +04 02 12   0.3272  1.2836   146.5    25.4    21.8
    ...
    2018 10 19    03 44 03.2 +02 04 22   0.2744  1.2348   146.7    26.3    21.3
    2018 10 20    03 47 37.9 +01 40 59   0.2662  1.2269   146.6    26.5    21.3
    2018 10 21    03 51 22.3 +01 16 23   0.2580  1.2189   146.4    26.9    21.2
    ...
    2018 10 27    04 18 00.8 -01 41 09   0.2127  1.1724   143.8    30.0    20.8
    ...
    2018 11 04    05 10 07.9 -07 19 28   0.1630  1.1140   135.5    38.6    20.3
    ...
    2018 11 19    08 10 18.1 -20 42 28   0.1227  1.0207   101.9    71.4    20.5
    
    A. U. Tomatic                (C) Copyright 2018 MPC           M.P.E.C. 2018-U39
    

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