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    • MPEC 2018-M80 : 2018 LD16

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    M.P.E.C. 2018-M80                                Issued 2018 June 22, 13:59 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@CFA.HARVARD.EDU
            URL https://www.minorplanetcenter.net/    ISSN 1523-6714

                                   2018 LD16

Observations:
     K18L16D* C2018 06 15.55997 21 25 06.870-17 26 17.27         22.0 wUEM080F51
     K18L16D  C2018 06 15.57056 21 25 08.547-17 26 17.13         22.1 wUEM080F51
     K18L16D  C2018 06 15.58112 21 25 10.213-17 26 17.00         21.7 wUEM080F51
     K18L16D |C2018 06 17.38389 21 30 09.71 -17 25 37.5          21.9 GUEM080807
     K18L16D |C2018 06 17.38895 21 30 10.53 -17 25 37.1          21.6 GUEM080807
     K18L16D |C2018 06 17.39402 21 30 11.34 -17 25 36.7          21.6 GUEM080807
     K18L16D ^C2018 06 17.54335121 30 36.675-17 25 54.11         21.73GVEM080568
     K18L16D ^C2018 06 17.54429721 30 36.822-17 25 54.11         21.79GVEM080568
     K18L16D ^C2018 06 17.54524121 30 36.969-17 25 54.15         21.89GVEM080568
     K18L16D  C2018 06 17.56828121 30 40.586-17 25 54.40         21.5 GVEM080F51
     K18L16D  C2018 06 17.57817821 30 42.138-17 25 54.39         21.7 GVEM080F51
     K18L16D  C2018 06 17.58806921 30 43.663-17 25 54.46         21.5 GVEM080F51
     K18L16D |C2018 06 19.40220 21 35 39.47 -17 25 46.4          21.5 GUEM080807
     K18L16D |C2018 06 19.40693 21 35 40.19 -17 25 46.3          21.5 GUEM080807
     K18L16D |C2018 06 19.41144 21 35 40.89 -17 25 45.9          21.5 GUEM080807
     K18L16D  C2018 06 19.56556121 36 06.509-17 26 07.47         21.4 GVEM080F51
     K18L16D  C2018 06 19.56879121 36 07.004-17 26 07.71         21.7 GVEM080F51
     K18L16D  C2018 06 19.57593721 36 08.098-17 26 07.89         21.7 GVEM080F51
     K18L16D  C2018 06 19.57915321 36 08.595-17 26 07.77         21.4 GVEM080F51
     K18L16D  C2018 06 19.58628721 36 09.675-17 26 07.97         21.7 GVEM080F51
     K18L16D  C2018 06 19.58950221 36 10.154-17 26 08.08         21.7 GVEM080F51
     K18L16D KC2018 06 22.41687 21 43 40.43 -17 27 34.1                oEM080691
     K18L16D KC2018 06 22.43110 21 43 42.60 -17 27 35.5                oEM080691
     K18L16D KC2018 06 22.44536 21 43 44.74 -17 27 35.5                oEM080691

Observer details:
568 Mauna Kea.  Observers R. Wainscoat, D. Woodworth, C. Wipper.  Measurers
    R. Weryk, R. Wainscoat.  3.6-m Canada-France-Hawaii Telescope + CCD.
691 Steward Observatory, Kitt Peak.  Observer J. V. Scotti.  0.9-m f/3
    reflector + CCD.
807 Cerro Tololo.  Observers T. Linder, R. Holmes.  0.61-m f/6.5 astrograph
    + CCD, 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.

Orbital elements:
2018 LD16                                                Earth MOID = 0.2776 AU
Epoch 2018 Mar. 23.0 TT = JDT 2458200.5                 MPC
M 328.85702              (2000.0)            P               Q
n   0.31118714     Peri.  201.21708     +0.36170248     +0.92918881
a   2.1566928      Node    90.05209     -0.84404610     +0.36100455
e   0.4006819      Incl.    4.36000     -0.39592613     +0.07927089
P   3.17           H   21.8           G   0.15           U   7
Residuals in seconds of arc
180615 F51  0.1+  0.0     180617 568  0.1-  0.0     180619 F51  0.0   0.2-
180615 F51  0.0   0.0     180617 F51  0.0   0.2+    180619 F51  0.0   0.2-
180615 F51  0.2-  0.1-    180617 F51  0.1+  0.2+    180619 F51  0.1+  0.0
180617 807  0.4-  0.4-    180617 F51  0.1-  0.1+    180619 F51  0.0   0.1-
180617 807  0.0   0.1-    180619 807  0.0   0.1+    180619 F51  0.1-  0.2-
180617 807  0.2+  0.3+    180619 807  0.1-  0.2+    180622 691  0.7-  0.3+
180617 568  0.0   0.1+    180619 807  0.0   0.6+    180622 691  0.2+  0.3-
180617 568  0.1-  0.1+    180619 F51  0.0   0.0     180622 691  0.5+  0.4+

Ephemeris:
2018 LD16                a,e,i = 2.16, 0.40, 4                   q = 1.2925
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2018 05 23    20 15 16.6 -17 59 49   0.5166  1.3448   119.6    40.9    22.6
...
2018 06 07    21 00 27.2 -17 33 27   0.4438  1.3128   123.5    40.2    22.2
...
2018 06 15    21 23 32.3 -17 26 17   0.4136  1.3017   125.8    39.3    22.0
...
2018 06 21    21 39 56.2 -17 26 26   0.3948  1.2962   127.8    38.3    21.9
2018 06 22    21 42 34.5 -17 27 00   0.3920  1.2955   128.1    38.1    21.9
2018 06 23    21 45 11.0 -17 27 45   0.3892  1.2949   128.5    37.9    21.8
...
2018 06 29    22 00 07.7 -17 35 54   0.3745  1.2927   130.8    36.5    21.7
...
2018 07 07    22 17 48.1 -17 57 39   0.3594  1.2938   134.4    34.2    21.6
...
2018 07 22    22 41 59.5 -19 12 10   0.3449  1.3079   143.0    27.9    21.3

A. U. Tomatic                (C) Copyright 2018 MPC           M.P.E.C. 2018-M80

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