[Iaude] MPEC Y39: 2018 YN [a=1.70,e=0.52,i=8.6,H=22.9]

[mpec at mpcdb1.cfa.harvard.edu]

M.P.E.C. 2018-Y39                                Issued 2018 Dec. 19, 12:41 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 YN
 
Observations:
     K18Y00N* C2018 12 17.51361 08 10 09.088+49 12 51.67         21.5 wUEY039F51
     K18Y00N  C2018 12 17.52678 08 10 04.498+49 12 59.66         21.6 wUEY039F51
     K18Y00N  C2018 12 17.53996 08 09 59.920+49 13 07.26         21.6 wUEY039F51
     K18Y00N  C2018 12 17.55313 08 09 55.323+49 13 14.69         21.9 wUEY039F51
     K18Y00N KC2018 12 18.31073708 05 51.74 +49 19 49.1          21.5 VuEY039H21
     K18Y00N KC2018 12 18.32109908 05 48.26 +49 19 54.6          21.7 VuEY039H21
     K18Y00N KC2018 12 18.33410308 05 43.87 +49 20 01.2          21.5 VuEY039H21
     K18Y00N KC2018 12 19.46660 07 59 46.11 +49 28 07.4          21.3 RoEY039291
     K18Y00N KC2018 12 19.47109 07 59 44.69 +49 28 08.5          21.3 RoEY039291
     K18Y00N KC2018 12 19.47559 07 59 43.19 +49 28 10.0          21.5 RoEY039291
 
Observer details:
291 LPL/Spacewatch II.  Observer R. S. McMillan.  1.8-m f/2.7 reflector + 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.  0.81-m f/4.0
    astrograph + CCD.
 
Orbital elements:
2018 YN                                                  Earth MOID = 0.0383 AU
Epoch 2019 Apr. 27.0 TT = JDT 2458600.5                 MPC
M  87.83491              (2000.0)            P               Q
n   0.44476548     Peri.  315.37438     +0.98860409     -0.09642979
a   1.6997381      Node    50.51603     +0.14063274     +0.86555130
e   0.5219373      Incl.    8.61410     -0.05370641     +0.49144913
P   2.22           H   22.9           G   0.15           U   7
Residuals in seconds of arc
181217 F51  0.0   0.0     181218 H21  0.1-  0.4-    181219 291  0.3+  0.1-
181217 F51  0.1-  0.1+    181218 H21  0.0   0.2-    181219 291  0.0   0.1+
181217 F51  0.1+  0.0     181218 H21  0.0   0.1-
181217 F51  0.1-  0.1-    181219 291  0.2-  0.2+

Ephemeris:
2018 YN                  a,e,i = 1.70, 0.52, 9                   q = 0.8126
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2018 11 19    11 25 26.5 +20 42 12   0.1132  0.9618    73.2   100.3    21.7
...
2018 12 04    09 33 41.4 +43 06 11   0.1670  1.0713   116.8    55.2    21.2
...
2018 12 12    08 42 01.0 +47 45 12   0.2068  1.1341   132.3    40.0    21.3
...
2018 12 18    08 07 31.2 +49 17 05   0.2411  1.1821   141.4    31.3    21.5
2018 12 19    08 02 13.1 +49 24 56   0.2472  1.1901   142.8    30.0    21.5
2018 12 20    07 57 03.6 +49 30 58   0.2534  1.1982   144.0    28.8    21.6
...
2018 12 26    07 29 14.1 +49 34 48   0.2933  1.2466   150.2    23.1    21.8
...
2019 01 03    07 00 45.7 +48 38 25   0.3539  1.3110   154.2    19.1    22.2
...
2019 01 18    06 31 37.5 +45 30 39   0.4921  1.4299   149.6    20.4    23.1

A. U. Tomatic                (C) Copyright 2018 MPC           M.P.E.C. 2018-Y39