[Iaude] MPEC L71: 2018 LG4 [a=0.92,e=0.31,i=1.9,H=27.3]

mpec at mpcdb1.cfa.harvard.edu mpec at mpcdb1.cfa.harvard.edu
Wed Jun 13 10:43:17 EDT 2018


M.P.E.C. 2018-L71                                Issued 2018 June 13, 14:38 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 LG4
 
Observations:
     K18L04G* C2018 06 12.31108 16 28 06.42 +08 42 54.7          19.9 GUEL071G96
     K18L04G  C2018 06 12.32155 16 27 58.94 +08 38 07.0          19.6 GUEL071G96
     K18L04G  C2018 06 12.32679 16 27 55.23 +08 35 44.5          20.0 GUEL071G96
     K18L04G  C2018 06 12.35972 16 27 32.35 +08 20 49.8          20.3 GUEL071I52
     K18L04G  C2018 06 12.36027 16 27 31.95 +08 20 35.2          20.3 GUEL071I52
     K18L04G  C2018 06 12.36081 16 27 31.60 +08 20 20.2          19.4 GUEL071I52
     K18L04G  C2018 06 12.36136 16 27 31.22 +08 20 05.1          19.0 GUEL071I52
     K18L04G  C2018 06 12.40253 16 27 03.90 +08 01 40.8          21.1 GUEL071I52
     K18L04G  C2018 06 12.40307 16 27 03.57 +08 01 26.7          21.3 GUEL071I52
     K18L04G  C2018 06 12.40362 16 27 03.21 +08 01 11.4          20.0 GUEL071I52
     K18L04G  C2018 06 12.40417 16 27 02.85 +08 00 57.7                UEL071I52
     K18L04G KC2018 06 12.90523116 23 27.469+04 40 20.18         20.1 GVEL071J04
     K18L04G KC2018 06 12.90732616 23 26.252+04 39 34.93         20.5 GVEL071J04
     K18L04G KC2018 06 12.90942116 23 25.093+04 38 49.56         20.3 GVEL071J04
     K18L04G KC2018 06 13.01264 16 22 22.33 +03 59 48.5                VEL071J95
     K18L04G KC2018 06 13.01739 16 22 19.91 +03 58 08.8                VEL071J95
     K18L04G KC2018 06 13.02416 16 22 16.37 +03 55 45.7          20.1 GVEL071J95
     K18L04G  C2018 06 13.28768 16 20 32.64 +02 29 09.8          20.3 GUEL071I52
     K18L04G  C2018 06 13.28864 16 20 32.11 +02 28 51.7          20.2 GUEL071I52
     K18L04G  C2018 06 13.28960 16 20 31.64 +02 28 33.2          19.7 GUEL071I52
     K18L04G  C2018 06 13.29056 16 20 31.15 +02 28 14.9          19.6 GUEL071I52
 
Observer details:
G96 Mt. Lemmon Survey.  Observer G. J. Leonard.  Measurers B. M. Africano,
    E. J. Christensen, D. C. Fuls, A. R. Gibbs, A. D. Grauer, H. Groeller,
    J. A. Johnson, R. A. Kowalski, S. M. Larson, G. J. Leonard, R. L. Seaman,
    F. C. Shelly.  1.5-m reflector + 10K CCD.
I52 Steward Observatory, Mt. Lemmon Station.  Observer B. M. Africano.
    Measurers B. M. Africano, E. J. Christensen, D. C. Fuls, A. R. Gibbs,
    A. D. Grauer, H. Groeller, J. A. Johnson, R. A. Kowalski, S. M. Larson,
    G. J. Leonard, R. L. Seaman, F. C. Shelly.  1.0-m reflector + CCD.
J04 ESA Optical Ground Station, Tenerife.  Observer D. Abreu.  Measurers
    M. Micheli, D. Koschny, A. Knoefel, M. Busch, E. Schwab.  1.0-m f/4.4
    reflector + CCD.
J95 Great Shefford.  Observer P. Birtwhistle.  0.40-m f/6.0 Schmidt-Cassegrain
    + CCD.
 
Orbital elements:
2018 LG4                                                 Earth MOID = 0.0119 AU
Epoch 2018 Mar. 23.0 TT = JDT 2458200.5                 MPC
M   6.37674              (2000.0)            P               Q
n   1.11583961     Peri.   33.24318     -0.66872964     -0.74280709
a   0.9205941      Node    98.74811     +0.67484686     -0.62459572
e   0.3069560      Incl.    1.86828     +0.31206151     -0.24107636
P   0.88           H   27.3           G   0.15           U   7
Residuals in seconds of arc
180612 G96  0.0   0.1+    180612 I52  0.0   0.0     180613 J95  0.4-  0.2-
180612 G96  0.2-  0.7-    180612 I52  0.2+  0.3+    180613 J95  0.3+  0.3+
180612 G96  0.1-  0.1+    180612 I52  0.1+  0.4-    180613 J95  0.2-  0.1-
180612 I52  0.2+  0.1+    180612 I52  0.0   0.6+    180613 I52  0.4+  0.2-
180612 I52  0.1-  0.4+    180612 J04  0.3+  0.4-    180613 I52  0.1-  0.1+
180612 I52  0.1+  0.0     180612 J04  0.2-  0.1+    180613 I52  0.2+  0.0
180612 I52  0.1+  0.3-    180612 J04  0.2+  0.5+    180613 I52  0.2+  0.1+

Ephemeris:
2018 LG4                 a,e,i = 0.92, 0.31, 2                   q = 0.6380
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2018 05 14    03 41 03.2 +28 52 56   0.1332  0.8803    11.3   167.1
...
2018 05 29    03 26 20.7 +36 38 02   0.05412 0.9625    19.4   159.6    31.7
...
2018 06 06    02 00 48.9 +61 30 29   0.01824 1.0028    48.9   130.3    24.3
...
2018 06 12    16 31 22.0 +11 16 50   0.01917 1.0309   143.6    35.7    20.2
2018 06 13    16 22 33.2 +04 09 12   0.02317 1.0354   148.8    30.5    20.5
2018 06 14    16 16 32.9 -00 50 23   0.02744 1.0399   151.7    27.6    20.8
...
2018 06 20    16 01 54.9 -13 38 41   0.05545 1.0654   152.0    26.6    22.4
...
2018 06 28    15 58 39.1 -18 47 06   0.09524 1.0962   145.4    31.8    23.7
...
2018 07 13    16 05 24.6 -22 18 40   0.1750  1.1438   133.3    40.3    25.4

A. U. Tomatic                (C) Copyright 2018 MPC           M.P.E.C. 2018-L71



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