• Processing (Info)

    • MPEC 2018-U29 : 2018 UD

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    M.P.E.C. 2018-U29                                Issued 2018 Oct. 19, 15:37 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 UD

Observations:
     K18U00D* C2018 10 16.51504 02 45 47.850+15 53 21.58         21.1 wUEU029F52
     K18U00D  C2018 10 16.52769 02 45 46.732+15 53 22.26         21.0 wUEU029F52
     K18U00D  C2018 10 16.54027 02 45 45.652+15 53 23.46         21.1 wUEU029F52
     K18U00D HC2018 10 17.37505 02 44 35.16 +15 54 20.0          21.1 RoEU029291
     K18U00D HC2018 10 17.39458 02 44 33.45 +15 54 21.4          21.3 RoEU029291
     K18U00D HC2018 10 17.41095 02 44 32.02 +15 54 22.8          21.0 RoEU029291
     K18U00D KC2018 10 18.25808 02 43 20.24 +15 55 16.0          21.3 RoEU029291
     K18U00D KC2018 10 18.26333 02 43 19.77 +15 55 16.2          21.0 RoEU029291
     K18U00D KC2018 10 18.26858 02 43 19.31 +15 55 16.5          20.8 RoEU029291
     K18U00D  C2018 10 18.27359 02 43 18.91 +15 55 16.7          21.2 GVEU029I52
     K18U00D  C2018 10 18.27652 02 43 18.63 +15 55 16.6          21.3 GVEU029I52
     K18U00D  C2018 10 18.27985 02 43 18.38 +15 55 16.5          21.4 GVEU029I52
     K18U00D  C2018 10 18.28319 02 43 18.09 +15 55 17.3          21.1 GVEU029I52
     K18U00D KC2018 10 19.21071202 41 58.53 +15 56 09.4          21.0 VuEU029H21
     K18U00D KC2018 10 19.22045902 41 57.70 +15 56 09.7          21.1 VuEU029H21
     K18U00D KC2018 10 19.23426702 41 56.46 +15 56 10.5          21.2 VuEU029H21

Observer details:
291 LPL/Spacewatch II.  Observer R. A. Mastaler.  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, 0.81-m f/4.0 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.

Orbital elements:
2018 UD                                                  Earth MOID = 0.3485 AU
Epoch 2019 Apr. 27.0 TT = JDT 2458600.5                 MPC
M  78.81042              (2000.0)            P               Q
n   0.21643943     Peri.  260.96955     +0.41641305     +0.90093241
a   2.7473361      Node    34.47174     -0.72612406     +0.41040956
e   0.5381318      Incl.   12.46337     -0.54712341     +0.14101344
P   4.55           H   18.7           G   0.15           U   7
Residuals in seconds of arc
181016 F52  0.1+  0.0     181018 291  0.2-  0.3+    181018 I52  0.7+  0.0
181016 F52  0.1-  0.2-    181018 291  0.3-  0.1+    181019 H21  0.2-  0.1+
181016 F52  0.1+  0.1+    181018 291  0.3-  0.1+    181019 H21  0.3+  0.1-
181017 291  0.0   0.0     181018 I52  0.4+  0.0     181019 H21  0.0   0.1-
181017 291  0.1+  0.1+    181018 I52  0.0   0.3-
181017 291  0.1+  0.5+    181018 I52  0.7+  0.6-

Ephemeris:
2018 UD                  a,e,i = 2.75, 0.54, 12                  q = 1.2689
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2018 09 19    03 14 09.4 +14 31 06   1.1786  1.9438   125.6    24.8    21.6
...
2018 10 04    03 01 46.6 +15 28 09   1.1533  2.0431   143.0    17.1    21.5
...
2018 10 12    02 51 58.8 +15 46 38   1.1564  2.0958   153.1    12.4    21.4
...
2018 10 18    02 43 42.1 +15 55 02   1.1685  2.1351   160.9     8.8    21.3
2018 10 19    02 42 16.5 +15 56 01   1.1714  2.1417   162.2     8.2    21.3
2018 10 20    02 40 50.5 +15 56 53   1.1745  2.1482   163.5     7.5    21.3
...
2018 10 26    02 32 09.7 +15 59 53   1.1991  2.1873   171.4     3.9    21.2
...
2018 11 03    02 20 53.9 +15 59 15   1.2475  2.2390   177.3     1.2    21.1
...
2018 11 18    02 03 18.1 +15 53 02   1.3860  2.3346   158.6     8.9    21.9

A. U. Tomatic                (C) Copyright 2018 MPC           M.P.E.C. 2018-U29

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