[Iaude] MPEC Y30: 2018 YA [a=1.23,e=0.13,i=9.4,H=24.3]

mpec at mpcdb1.cfa.harvard.edu mpec at mpcdb1.cfa.harvard.edu
Tue Dec 18 15:31:16 EST 2018


M.P.E.C. 2018-Y30                                Issued 2018 Dec. 18, 20:28 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 YA
 
Observations:
     K18Y00A* C2018 12 16.48772 08 34 24.989+12 46 11.41         21.9 wUEY030F51
     K18Y00A  C2018 12 16.50038 08 34 23.589+12 45 25.35         22.4 wUEY030F51
     K18Y00A  C2018 12 16.51313 08 34 22.140+12 44 38.41         21.8 wUEY030F51
     K18Y00A ^C2018 12 17.51265908 32 50.062+11 43 23.05         21.55GVEY030568
     K18Y00A ^C2018 12 17.51384108 32 49.922+11 43 18.74         21.61GVEY030568
     K18Y00A ^C2018 12 17.51501908 32 49.785+11 43 14.43         21.54GVEY030568
     K18Y00A KC2018 12 18.33961708 31 30.28 +10 52 43.3          22.1 VuEY030H21
     K18Y00A KC2018 12 18.34691708 31 29.42 +10 52 16.5          22.0 VuEY030H21
     K18Y00A KC2018 12 18.35198408 31 28.81 +10 51 58.0          21.9 VuEY030H21
 
Observer details:
568 Mauna Kea.  Observers R. Wainscoat, C. Wipper, A. Petric.  Measurers
    R. Weryk, R. Wainscoat.  3.6-m Canada-France-Hawaii Telescope + CCD.
F51 Pan-STARRS 1, Haleakala.  Observers J. Bulger, T. Lowe, A. Schultz,
    M. Willman.  Measurers K. Chambers, S. Chastel, L. Denneau, J. Fairlamb,
    H. Flewelling, M. Huber, C.-C. Lin, E. Magnier, Y. Ramanjooloo,
    R. Wainscoat, 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 YA                                                  Earth MOID = 0.0969 AU
Epoch 2019 Apr. 27.0 TT = JDT 2458600.5                 MPC
M 129.04445              (2000.0)            P               Q
n   0.72615610     Peri.  141.55656     +0.68193010     -0.71315628
a   1.2258840      Node   264.79590     +0.62424776     +0.68320223
e   0.1333865      Incl.    9.38629     +0.38116411     +0.15698035
P   1.36           H   24.3           G   0.15           U   7
Residuals in seconds of arc
181216 F51  0.1-  0.1-    181217 568  0.1-  0.0     181218 H21  0.1+  0.2+
181216 F51  0.1+  0.2+    181217 568  0.1-  0.0     181218 H21  0.0   0.1-
181216 F51  0.2-  0.0     181217 568  0.1-  0.0     181218 H21  0.2-  0.1-

Ephemeris:
2018 YA                  a,e,i = 1.23, 0.13, 9                   q = 1.0624
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2018 11 18    08 39 56.5 +40 15 49   0.1776  1.0677   111.9    59.2    22.8
...
2018 12 03    08 46 48.2 +26 35 37   0.1582  1.0804   123.1    49.8    22.3
...
2018 12 11    08 41 24.1 +18 26 49   0.1519  1.0900   130.7    43.2    22.1
...
2018 12 17    08 33 37.0 +12 14 57   0.1501  1.0982   136.7    37.9    21.9
2018 12 18    08 32 02.9 +11 13 52   0.1501  1.0997   137.7    37.0    21.9
2018 12 19    08 30 24.6 +10 13 17   0.1502  1.1011   138.7    36.2    21.9
...
2018 12 25    08 19 18.4 +04 25 33   0.1525  1.1105   144.0    31.4    21.8
...
2019 01 02    08 02 07.8 -02 11 30   0.1607  1.1241   149.0    26.8    21.8
...
2019 01 17    07 30 48.9 -09 43 59   0.1919  1.1523   148.9    26.2    22.2

A. U. Tomatic                (C) Copyright 2018 MPC           M.P.E.C. 2018-Y30



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