[Iaude] MPEC M45: 2018 MU4 [a=1.63,e=0.59,i=6.4,H=22.5]

mpec at mpcdb1.cfa.harvard.edu mpec at mpcdb1.cfa.harvard.edu
Tue Jun 19 17:53:16 EDT 2018


M.P.E.C. 2018-M45                                Issued 2018 June 19, 21:49 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 at CFA.HARVARD.EDU
            URL https://www.minorplanetcenter.net/    ISSN 1523-6714


                                   2018 MU4
 
Observations:
     K18M04U* C2018 06 16.38258 14 58 59.654+03 00 14.75         22.1 wUEM045F51
     K18M04U  C2018 06 16.39518 14 59 01.852+02 59 46.07         22.3 wUEM045F51
     K18M04U  C2018 06 16.42045 14 59 06.313+02 58 48.17         21.5 wUEM045F51
     K18M04U |C2018 06 17.09826 15 01 10.99 +02 33 58.4          21.8 GUEM045807
     K18M04U |C2018 06 17.10247 15 01 11.69 +02 33 49.2          21.8 GUEM045807
     K18M04U |C2018 06 17.10729 15 01 12.49 +02 33 38.4          21.8 GUEM045807
     K18M04U ^C2018 06 17.35721615 01 56.705+02 24 10.64         21.37GVEM045568
     K18M04U ^C2018 06 17.35816015 01 56.861+02 24 08.61         21.38GVEM045568
     K18M04U ^C2018 06 17.35910415 01 57.017+02 24 06.55         21.41GVEM045568
     K18M04U |C2018 06 18.02760 15 03 53.83 +02 00 53.1          21.5 GUEM045807
     K18M04U |C2018 06 18.03322 15 03 54.74 +02 00 41.3          21.5 GUEM045807
     K18M04U |C2018 06 18.03965 15 03 55.75 +02 00 27.8          21.6 GUEM045807
     K18M04U KC2018 06 19.12154615 06 54.20 +01 23 32.5          22.3 VuEM045H21
     K18M04U KC2018 06 19.13371315 06 56.05 +01 23 08.8          22.4 VuEM045H21
     K18M04U KC2018 06 19.14551715 06 57.84 +01 22 45.5          22.3 VuEM045H21
     K18M04U KC2018 06 19.24773 15 07 13.89 +01 19 29.0          22.0 RoEM045291
     K18M04U KC2018 06 19.25447 15 07 14.90 +01 19 15.7          22.5 RoEM045291
     K18M04U KC2018 06 19.26123 15 07 15.91 +01 19 02.7          22.6 RoEM045291
 
Observer details:
291 LPL/Spacewatch II.  Observer J. V. Scotti.  1.8-m f/2.7 reflector + CCD.
568 Mauna Kea.  Observers R. Wainscoat, D. Woodworth, C. Wipper.  Measurers
    R. Weryk, R. Wainscoat.  3.6-m Canada-France-Hawaii Telescope + CCD.
807 Cerro Tololo.  Observers T. Linder, R. Holmes.  1.00-m f/10.0 astrograph
    + 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. 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.  1.3-m f/4.0
    astrograph + CCD.
 
Orbital elements:
2018 MU4                                                 Earth MOID = 0.0483 AU
Epoch 2018 Mar. 23.0 TT = JDT 2458200.5                 MPC
M 354.51602              (2000.0)            P               Q
n   0.47379511     Peri.  300.02805     -0.87891165     -0.47330481
a   1.6295799      Node   211.83111     +0.46707941     -0.82888611
e   0.5933978      Incl.    6.43757     +0.09670128     -0.29821197
P   2.08           H   22.5           G   0.15           U   8
Residuals in seconds of arc
180616 F51  0.1+  0.1-    180617 568  0.1-  0.0     180619 H21  0.2-  0.1-
180616 F51  0.1-  0.1+    180617 568  0.1-  0.0     180619 H21  0.2-  0.1+
180616 F51  0.0   0.1-    180617 568  0.1-  0.0     180619 H21  0.3-  0.1-
180617 807  0.3+  0.3+    180618 807  0.0   0.1-    180619 291  0.2+  0.1+
180617 807  0.2+  0.3+    180618 807  0.1+  0.2-    180619 291  0.1+  0.1-
180617 807  0.0   0.0     180618 807  0.2-  0.3-    180619 291  0.0   0.1+

Ephemeris:
2018 MU4                 a,e,i = 1.63, 0.59, 6                   q = 0.6626
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2018 05 20    08 36 53.2 +38 43 54   0.1172  0.9672    64.5   109.2    21.9
...
2018 06 04    13 54 53.9 +15 28 30   0.1681  1.1158   123.4    49.4    20.7
...
2018 06 12    14 43 16.0 +06 12 23   0.2470  1.1944   131.8    39.3    21.4
...
2018 06 18    15 03 48.4 +02 01 38   0.3139  1.2524   133.3    36.2    21.9
2018 06 19    15 06 34.4 +01 27 50   0.3255  1.2620   133.4    35.8    22.0
2018 06 20    15 09 12.2 +00 55 47   0.3372  1.2715   133.4    35.5    22.1
...
2018 06 26    15 22 48.2 -01 47 23   0.4100  1.3281   132.4    34.4    22.6
...
2018 07 04    15 37 19.4 -04 32 17   0.5130  1.4015   129.8    33.9    23.2
...
2018 07 19    16 00 02.0 -08 15 30   0.7228  1.5328   122.7    33.9    24.1

A. U. Tomatic                (C) Copyright 2018 MPC           M.P.E.C. 2018-M45



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