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    • MPEC 2018-A75 : 2018 AK3

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    M.P.E.C. 2018-A75                                Issued 2018 Jan. 14, 20:58 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 AK3

Observations:
     K18A03K* C2018 01 12.33182 09 37 17.65 +28 51 07.7          19.6 GUEA075G96
     K18A03K  C2018 01 12.33702 09 37 21.71 +28 50 58.3          20.3 GUEA075G96
     K18A03K  C2018 01 12.34572 09 37 28.56 +28 50 42.4          19.5 GUEA075G96
     K18A03K  C2018 01 12.35092 09 37 32.64 +28 50 32.5          20.5 GUEA075G96
     K18A03K  C2018 01 12.43019 09 38 34.02 +28 47 55.8          20.0 GUEA075I52
     K18A03K  C2018 01 12.43251 09 38 35.75 +28 47 50.5          19.5 GUEA075I52
     K18A03K  C2018 01 12.43479 09 38 37.53 +28 47 46.1          19.6 GUEA075I52
     K18A03K  C2018 01 12.43699 09 38 39.29 +28 47 41.3          19.9 GUEA075I52
     K18A03K KC2018 01 13.10014 09 47 29.47 +28 24 50.1                UEA075204
     K18A03K KC2018 01 13.11567 09 47 40.18 +28 24 17.3                UEA075204
     K18A03K KC2018 01 13.13120 09 47 50.88 +28 23 44.4          20.0 GUEA075204
     K18A03K  C2018 01 13.43163 09 51 31.51 +28 14 34.3          21.4 GUEA075I52
     K18A03K  C2018 01 13.43205 09 51 31.76 +28 14 33.3          21.2 GUEA075I52
     K18A03K  C2018 01 13.43246 09 51 32.01 +28 14 32.4          20.4 GUEA075I52
     K18A03K  C2018 01 13.43288 09 51 32.29 +28 14 31.5          19.8 GUEA075I52
     K18A03K  C2018 01 14.39909 10 02 06.96 +27 43 23.3          20.1 GUEA075I52
     K18A03K  C2018 01 14.40270 10 02 08.91 +27 43 16.1          19.9 GUEA075I52
     K18A03K  C2018 01 14.40631 10 02 10.83 +27 43 09.6          19.8 GUEA075I52
     K18A03K  C2018 01 14.40994 10 02 12.74 +27 43 02.6          19.9 GUEA075I52

Observer details:
204 Schiaparelli Observatory.  Observer L. Buzzi.  0.84-m f/3.5 reflector
    + CCD.
G96 Mt. Lemmon Survey.  Observer D. C. Fuls.  Measurers E. J. Christensen,
    D. C. Fuls, A. R. Gibbs, A. D. Grauer, J. A. Johnson, R. A. Kowalski,
    S. M. Larson, G. J. Leonard, R. G. Matheny, R. L. Seaman, F. C. Shelly.
    1.5-m reflector + 10K CCD.
I52 Steward Observatory, Mt. Lemmon Station.  Observers R. G. Matheny,
    J. A. Johnson.  Measurers E. J. Christensen, D. C. Fuls, A. R. Gibbs,
    A. D. Grauer, J. A. Johnson, R. A. Kowalski, S. M. Larson, G. J. Leonard,
    R. G. Matheny, R. L. Seaman, F. C. Shelly.  1.0-m reflector + CCD.

Orbital elements:
2018 AK3                                                 Earth MOID = 0.0229 AU
Epoch 2017 Sept. 4.0 TT = JDT 2458000.5                 MPC
M 328.17531              (2000.0)            P               Q
n   0.27615679     Peri.  351.80034     -0.07950883     -0.99519050
a   2.3354231      Node   102.74622     +0.91787353     -0.09548066
e   0.5701348      Incl.    3.36328     +0.38882713     +0.02189339
P   3.57           H   25.7           G   0.15           U   7
Residuals in seconds of arc
180112 G96  0.1+  0.1+    180112 I52  0.1-  0.2+    180113 I52  0.3-  0.1-
180112 G96  0.1+  0.1+    180112 I52  0.8+  0.0     180113 I52  0.2-  0.1-
180112 G96  0.3-  0.1+    180113 204  0.5+  0.2+    180114 I52  0.0   0.3+
180112 G96  0.1-  0.1+    180113 204  0.2+  0.3-    180114 I52  0.3+  0.1-
180112 G96  0.0   0.2-    180113 204  0.2-  0.4-    180114 I52  0.1+  0.1+
180112 I52  0.2+  0.2+    180113 I52  0.1+  0.1+    180114 I52  0.2-  0.1-
180112 I52  0.5-  0.3-    180113 I52  0.2-  0.0

Ephemeris:
2018 AK3                 a,e,i = 2.34, 0.57, 3                   q = 1.0039
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2017 12 15    01 16 59.1 -09 16 06   0.08852 1.0184   110.3    65.0    22.8
...
2017 12 30    03 06 03.9 +06 37 50   0.03396 1.0042   127.0    51.4    20.3
...
2018 01 07    07 29 48.8 +29 46 34   0.02877 1.0118   171.5     8.2    18.6
...
2018 01 13    09 46 14.6 +28 29 08   0.04670 1.0243   150.0    28.6    20.4
2018 01 14    09 57 57.2 +27 56 20   0.05042 1.0269   148.4    30.1    20.6
2018 01 15    10 07 50.0 +27 25 06   0.05426 1.0297   147.2    31.2    20.8
...
2018 01 21    10 43 20.6 +25 01 25   0.07878 1.0494   144.7    32.8    21.7
...
2018 01 29    11 01 13.9 +23 14 42   0.1140  1.0831   147.7    29.0    22.4
...
2018 02 13    11 05 53.5 +21 34 44   0.1881  1.1650   159.2    17.5    23.3

A. U. Tomatic                (C) Copyright 2018 MPC           M.P.E.C. 2018-A75

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