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    • MPEC 2018-T137: 2018 TJ4

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    M.P.E.C. 2018-T137                               Issued 2018 Oct. 11, 16:30 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 TJ4

Observations:
     K18T04J* C2018 10 07.22970 00 25 04.47 +29 27 34.1          20.1 GVET137G96
     K18T04J  C2018 10 07.23655 00 25 08.75 +29 26 00.2          20.1 GVET137G96
     K18T04J  C2018 10 07.24176 00 25 11.97 +29 24 48.4          20.1 GVET137G96
     K18T04J  C2018 10 07.24696 00 25 15.22 +29 23 36.7          20.3 GVET137G96
     K18T04J  C2018 10 07.26946 00 25 29.06 +29 18 27.5          20.1 GVET137I52
     K18T04J  C2018 10 07.27043 00 25 29.62 +29 18 13.9          20.2 GVET137I52
     K18T04J  C2018 10 07.27237 00 25 30.82 +29 17 48.2          20.4 GVET137I52
     K18T04J  C2018 10 10.18625 00 45 35.37 +21 59 05.1          21.6 GVET137I52
     K18T04J  C2018 10 10.18957 00 45 36.00 +21 58 46.1                VET137I52
     K18T04J  C2018 10 10.20387 00 45 39.13 +21 57 23.8          21.5 GVET137I52
     K18T04J  C2018 10 10.20595 00 45 39.56 +21 57 12.0          21.8 GVET137I52
     K18T04J  C2018 10 10.20803 00 45 40.01 +21 56 59.6          21.2 GVET137I52
     K18T04J KC2018 10 10.82890 00 48 01.75 +21 00 03.4          20.5 RoET137K88
     K18T04J KC2018 10 10.84140 00 48 04.08 +20 59 00.5          20.5 RoET137K88
     K18T04J KC2018 10 10.90210000 48 15.59 +20 54 01.7          21.2 GVET137L01
     K18T04J KC2018 10 10.90365200 48 15.83 +20 53 55.0          21.0 GVET137L01
     K18T04J KC2018 10 10.90831600 48 16.67 +20 53 31.6          21.1 GVET137L01

Observer details:
G96 Mt. Lemmon Survey.  Observer G. J. Leonard.  Measurers B. M. Africano,
    E. J. Christensen, G. A. Farneth, 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.  Observers D. C. Fuls,
    E. J. Christensen.  Measurers B. M. Africano, E. J. Christensen,
    G. A. Farneth, 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.
K88 GINOP-KHK, Piszkesteto.  Observer K. Sarneczky.  1.02-m Ritchey-Chretien
    + CCD.
L01 Visnjan Observatory, Tican.  Observers K. Korlevic, I. Lyon.  Measurer
    K. Korlevic.  1.0-m f/2.9 reflector + CCD.

Orbital elements:
2018 TJ4                                                 Earth MOID = 0.0159 AU
Epoch 2019 Apr. 27.0 TT = JDT 2458600.5                 MPC
M  63.11605              (2000.0)            P               Q
n   0.25434911     Peri.   18.24763     +0.52339089     +0.85186114
a   2.4670762      Node   283.31662     -0.78430027     +0.47250675
e   0.6969705      Incl.    1.16965     -0.33306915     +0.22598666
P   3.88           H   25.8           G   0.15           U   8
Residuals in seconds of arc
181007 G96  0.3+  0.2-    181007 I52  0.0   0.3+    181010 K88  0.2+  0.1+
181007 G96  0.3+  0.3+    181010 I52  0.3+  0.3-    181010 K88  0.4+  0.4-
181007 G96  0.0   0.2+    181010 I52  0.8-  0.1-    181010 L01  0.3+  0.4-
181007 G96  0.3+  0.0     181010 I52  0.2+  0.0     181010 L01  0.2-  0.6+
181007 I52  0.2+  0.3-    181010 I52  0.0   0.2+    181010 L01  0.0   0.3+
181007 I52  0.2-  0.6-    181010 I52  0.1+  0.2-

Ephemeris:
2018 TJ4                 a,e,i = 2.47, 0.70, 1                   q = 0.7476
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2018 09 11    13 18 44.7 -04 43 09   0.2349  0.8176    32.1   139.1    28.9
...
2018 09 26    13 46 56.9 +04 56 45   0.07246 0.9376    25.0   153.1    29.0
...
2018 10 04    22 24 49.1 +53 53 03   0.02475 1.0143   123.3    55.5    19.8
...
2018 10 10    00 44 43.5 +22 18 20   0.07918 1.0750   163.7    15.1    21.3
2018 10 11    00 48 34.2 +20 46 43   0.08942 1.0853   165.5    13.3    21.5
2018 10 12    00 51 34.8 +19 33 14   0.09977 1.0956   167.0    11.8    21.7
...
2018 10 18    01 01 25.1 +15 24 04   0.1638  1.1584   170.8     7.9    22.7
...
2018 10 26    01 07 15.0 +13 05 33   0.2542  1.2432   167.0    10.3    24.0
...
2018 11 10    01 14 54.6 +11 31 16   0.4430  1.4024   154.2    17.9    25.7

A. U. Tomatic                (C) Copyright 2018 MPC           M.P.E.C. 2018-T137

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