[Iaude] MPEC M68: 2018 LA16 [a=2.58,e=0.54,i=17.0,H=19.3]

mpec at mpcdb1.cfa.harvard.edu mpec at mpcdb1.cfa.harvard.edu
Thu Jun 21 07:37:18 EDT 2018


M.P.E.C. 2018-M68                                Issued 2018 June 21, 11:34 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 LA16
 
Observations:
     K18L16A* C2018 06 15.55803 21 20 46.737-22 33 37.42         21.8 wUEM068F51
     K18L16A  C2018 06 15.56863 21 20 46.184-22 33 33.30         21.7 wUEM068F51
     K18L16A  C2018 06 15.57918 21 20 45.621-22 33 29.10         21.9 wUEM068F51
     K18L16A KC2018 06 17.43910 21 19 08.97 -22 21 10.9          21.7 RoEM068291
     K18L16A KC2018 06 17.44660 21 19 08.50 -22 21 08.0          21.5 RoEM068291
     K18L16A  C2018 06 17.57688621 19 01.407-22 20 16.31               VEM068F51
     K18L16A  C2018 06 17.58677521 19 00.805-22 20 12.34         21.9 GVEM068F51
     K18L16A  C2018 06 17.59668521 19 00.214-22 20 08.43         21.9 GVEM068F51
     K18L16A |C2018 06 19.37840 21 17 18.04 -22 08 32.3          21.3 GUEM068807
     K18L16A |C2018 06 19.38146 21 17 17.85 -22 08 31.0          21.5 GUEM068807
     K18L16A |C2018 06 19.38515 21 17 17.61 -22 08 29.7          21.4 GUEM068807
     K18L16A  C2018 06 19.57335821 17 06.497-22 07 24.97         21.6 GVEM068F51
     K18L16A  C2018 06 19.58370021 17 05.842-22 07 20.96         21.6 GVEM068F51
     K18L16A  C2018 06 19.59405121 17 05.186-22 07 17.13               VEM068F51
     K18L16A  C2018 06 21.36331721 15 14.94 -21 56 11.1          20.7 GVEM068H01
     K18L16A  C2018 06 21.36827421 15 14.62 -21 56 09.1          21.6 GVEM068H01
     K18L16A  C2018 06 21.37620621 15 14.06 -21 56 06.2          21.4 GVEM068H01
     K18L16A  C2018 06 21.38498021 15 13.47 -21 56 03.0          21.2 GVEM068H01
 
Observer details:
291 LPL/Spacewatch II.  Observer R. A. Mastaler.  1.8-m f/2.7 reflector + 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.
H01 Magdalena Ridge Observatory, Socorro.  Observers W. H. Ryan, E. V. Ryan.
    Measurer W. H. Ryan.  2.4-m f/8.9 reflector + CCD.
 
Orbital elements:
2018 LA16                                                Earth MOID = 0.3468 AU
Epoch 2018 Mar. 23.0 TT = JDT 2458200.5                 MPC
M  11.42582              (2000.0)            P               Q
n   0.23729708     Peri.  256.74045     -0.90962305     +0.33380615
a   2.5838926      Node   302.24500     -0.16445017     -0.83598810
e   0.5401081      Incl.   17.00168     -0.38149974     -0.43554260
P   4.15           H   19.3           G   0.15           U   7
Residuals in seconds of arc
180615 F51  0.1-  0.1+    180617 F51  0.0   0.0     180619 F51  0.0   0.0
180615 F51  0.1+  0.1-    180617 F51  0.2-  0.0     180619 F51  0.1+  0.1-
180615 F51  0.0   0.1-    180619 807  0.0   0.1-    180621 H01  0.0   0.1-
180617 291  0.0   0.4+    180619 807  0.0   0.1+    180621 H01  0.2+  0.1+
180617 291  0.5-  0.3+    180619 807  0.1-  0.1-    180621 H01  0.1-  0.1+
180617 F51  0.3+  0.1-    180619 F51  0.1-  0.0     180621 H01  0.1-  0.1+

Ephemeris:
2018 LA16                a,e,i = 2.58, 0.54, 17                  q = 1.1883
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2018 05 22    21 26 25.9 -25 52 18   1.0959  1.6688   104.6    35.9    22.1
...
2018 06 06    21 26 27.6 -23 42 25   1.0491  1.7710   118.2    30.3    22.0
...
2018 06 14    21 22 00.2 -22 44 06   1.0287  1.8259   126.5    26.5    21.9
...
2018 06 20    21 16 40.6 -22 04 37   1.0178  1.8671   133.3    23.3    21.8
2018 06 21    21 15 38.1 -21 58 20   1.0164  1.8740   134.4    22.8    21.8
2018 06 22    21 14 33.1 -21 52 08   1.0152  1.8809   135.6    22.2    21.8
...
2018 06 28    21 07 13.8 -21 16 19   1.0112  1.9220   142.8    18.6    21.7
...
2018 07 06    20 55 39.2 -20 31 29   1.0164  1.9765   152.9    13.5    21.6
...
2018 07 21    20 31 15.6 -19 12 22   1.0661  2.0778   172.6     3.6    21.4

A. U. Tomatic                (C) Copyright 2018 MPC           M.P.E.C. 2018-M68



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