[Iaude] MPEC Y38: 2018 YL [a=2.81,e=0.62,i=12.5,H=22.5]

mpec at mpcdb1.cfa.harvard.edu mpec at mpcdb1.cfa.harvard.edu
Wed Dec 19 07:41:16 EST 2018


M.P.E.C. 2018-Y38                                Issued 2018 Dec. 19, 12:38 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 YL
 
Observations:
     K18Y00L* C2018 12 16.62078 09 06 35.981+31 17 30.45         21.3 wUEY038F51
     K18Y00L  C2018 12 16.62903 09 06 40.504+31 17 55.18         21.1 wUEY038F51
     K18Y00L  C2018 12 16.63723 09 06 44.950+31 18 19.77         21.0 wUEY038F51
     K18Y00L  C2018 12 16.64539 09 06 49.434+31 18 44.31         20.9 wUEY038F51
     K18Y00L KC2018 12 17.37985 09 13 50.68 +31 55 26.2          20.7 GUEY038H36
     K18Y00L KC2018 12 17.38913 09 13 55.87 +31 55 54.3          20.6 GUEY038H36
     K18Y00L KC2018 12 17.40770 09 14 06.21 +31 56 49.6          20.7 GUEY038H36
     K18Y00L ^C2018 12 17.51683509 15 10.580+32 02 27.46         20.40GVEY038568
     K18Y00L ^C2018 12 17.51801809 15 11.242+32 02 31.03         20.44GVEY038568
     K18Y00L ^C2018 12 17.51946609 15 12.057+32 02 35.41         20.40GVEY038568
     K18Y00L IC2018 12 18.14516609 21 16.53 +32 32 56.6          20.7 GVEY038L01
     K18Y00L KC2018 12 18.14862209 21 18.48 +32 33 07.1          20.8 GVEY038L01
     K18Y00L pC2018 12 18.15529809 21 22.36 +32 33 25.7          21.0 GVEY038L01
     K18Y00L pC2018 12 18.15681109 21 23.23 +32 33 30.3          21.0 GVEY038L01
     K18Y00L KC2018 12 18.41724509 23 57.97 +32 46 08.5          20.4 VuEY038H21
     K18Y00L KC2018 12 18.42490209 24 02.40 +32 46 30.4          20.5 VuEY038H21
     K18Y00L KC2018 12 18.43308209 24 07.11 +32 46 53.9          20.7 VuEY038H21
     K18Y00L  C2018 12 19.33701 09 33 14.67 +33 29 24.4          21.1 GVEY038I52
     K18Y00L  C2018 12 19.33826 09 33 15.34 +33 29 27.3          20.3 GVEY038I52
     K18Y00L  C2018 12 19.33951 09 33 16.10 +33 29 31.5          19.8 GVEY038I52
     K18Y00L  C2018 12 19.34076 09 33 16.83 +33 29 34.7          20.6 GVEY038I52
 
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.  0.61-m f/4.5
    astrograph + CCD.
H36 Sandlot Observatory, Scranton.  Observer G. Hug.  0.56-m reflector + CCD.
I52 Steward Observatory, Mt. Lemmon Station.  Observer B. M. Africano.
    Measurers B. M. Africano, E. J. Christensen, G. A. Farneth, D. C. Fuls,
    A. R. Gibbs, A. D. Grauer, H. Groeller, 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 YL                                                  Earth MOID = 0.1375 AU
Epoch 2019 Apr. 27.0 TT = JDT 2458600.5                 MPC
M  21.61549              (2000.0)            P               Q
n   0.20941415     Peri.   42.21913     -0.52105579     -0.82638784
a   2.8084414      Node    80.24576     +0.71371262     -0.55904011
e   0.6204301      Incl.   12.51152     +0.46809739     -0.06750772
P   4.71           H   22.5           G   0.15           U   6
Residuals in seconds of arc
181216 F51  0.3-  0.0     181217 568  0.1-  0.1-    181218 H21  0.1+  0.1-
181216 F51  0.1+  0.1-    181217 568  0.2-  0.1-    181218 H21  0.1+  0.1-
181216 F51  0.1-  0.1-    181217 568  0.1-  0.1-    181218 H21  0.1-  0.1+
181216 F51  0.3+  0.1+    181218 L01  0.1+  0.1-    181219 I52  0.8+  0.2+
181217 H36  0.8+  0.1+    181218 L01  0.4-  0.5+    181219 I52  0.1-  0.5-
181217 H36  0.7+  0.3+    181218 L01  0.1+  0.2-    181219 I52  0.1+  0.1+
181217 H36  0.2-  0.0     181218 L01  0.1+  0.1+    181219 I52  0.1-  0.2-

Ephemeris:
2018 YL                  a,e,i = 2.81, 0.62, 13                  q = 1.0660
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2018 11 19    06 28 58.2 +12 49 23   0.3632  1.2818   138.1    31.0    22.2
...
2018 12 04    07 32 50.8 +20 46 13   0.2514  1.1890   139.9    32.3    21.2
...
2018 12 12    08 26 34.9 +27 16 02   0.2117  1.1478   136.7    36.1    20.9
...
2018 12 18    09 19 51.0 +32 26 01   0.1938  1.1216   131.4    41.1    20.8
2018 12 19    09 29 47.4 +33 13 49   0.1919  1.1177   130.3    42.2    20.8
2018 12 20    09 39 59.2 +33 59 29   0.1903  1.1139   129.2    43.2    20.8
...
2018 12 26    10 44 36.2 +37 31 14   0.1874  1.0939   121.8    49.8    20.9
...
2019 01 03    12 07 25.7 +38 56 28   0.1986  1.0753   112.6    57.6    21.2
...
2019 01 18    13 50 49.4 +35 53 32   0.2460  1.0674   103.3    63.8    21.9

A. U. Tomatic                (C) Copyright 2018 MPC           M.P.E.C. 2018-Y38



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