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    • MPEC 2015-O43 : 2015 OJ22

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    M.P.E.C. 2015-O43                                Issued 2015 July 22, 21:31 UT

     The Minor Planet Electronic Circulars contain information on unusual
         minor planets and routine data on comets.  They are published
   on behalf of Commission 20 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

                                   2015 OJ22

Observations:
     K15O22J  C2015 06 26.54643 20 58 21.771-17 49 25.05         22.1 wLEO043F51
     K15O22J  C2015 06 26.55743 20 58 23.871-17 49 33.29         22.1 wLEO043F51
     K15O22J  C2015 06 26.56842 20 58 25.978-17 49 41.42         21.8 wLEO043F51
     K15O22J  C2015 06 26.57941 20 58 28.056-17 49 49.76         21.8 wLEO043F51
     K15O22J* C2015 07 19.58378 22 32 25.553-24 15 57.51         21.1 wLEO043F52
     K15O22J  C2015 07 19.59611 22 32 28.841-24 16 10.63         21.0 wLEO043F52
     K15O22J _C2015 07 21.49710722 41 29.133-24 51 09.48         20.6 RtEO043568
     K15O22J _C2015 07 21.49845122 41 29.498-24 51 10.98         20.4 RtEO043568
     K15O22J _C2015 07 21.49975622 41 29.837-24 51 12.46         20.6 RtEO043568
     K15O22J KC2015 07 21.63901 22 42 08.69 -24 53 02.9          20.3 RtEO043474
     K15O22J KC2015 07 21.64112 22 42 09.32 -24 53 05.3          20.5 RtEO043474
     K15O22J KC2015 07 21.64323 22 42 09.88 -24 53 07.6          20.4 RtEO043474
     K15O22J KC2015 07 22.56657 22 46 34.60 -25 09 45.9                tEO043474
     K15O22J KC2015 07 22.56893 22 46 35.30 -25 09 47.9          21.0 RtEO043474
     K15O22J KC2015 07 22.57128 22 46 35.89 -25 09 51.1                tEO043474
     K15O22J KC2015 07 22.57364 22 46 36.62 -25 09 53.1          20.6 RtEO043474

Observer details:
474 Mount John Observatory, Lake Tekapo.  Observers A. C. Gilmore,
    P. M. Kilmartin.  Measurer P. M. Kilmartin.  1.0-m f/7.7 reflector + CCD.
568 Mauna Kea.  Observers R. J. Wainscoat, D. Woodworth.  Measurers M. Micheli,
    R. J. Wainscoat.  3.6-m Canada-France-Hawaii Telescope + CCD.
F51 Pan-STARRS 1, Haleakala.  Observers B. Gibson, T. Goggia, N. Primak,
    A. Schultz, M. Willman.  Measurers K. Chambers, S. Chastel, L. Denneau,
    H. Flewelling, M. Huber, E. Lilly, E. Magnier, R. Wainscoat, C. Waters,
    R. Weryk.  1.8-m Ritchey-Chretien + CCD.
F52 Pan-STARRS 2, Haleakala.  Observers B. Gibson, T. Goggia, N. Primak,
    A. Schultz, M. Willman.  Measurers K. Chambers, S. Chastel, L. Denneau,
    H. Flewelling, M. Huber, E. Lilly, E. Magnier, R. Wainscoat, C. Waters,
    R. Weryk.  1.8-m Ritchey-Chretien + CCD.

Orbital elements:
2015 OJ22                                                Earth MOID = 0.1790 AU
Epoch 2015 June 27.0 TT = JDT 2457200.5                 MPC
M 344.93081              (2000.0)            P               Q
n   0.32612752     Peri.  222.41100     +0.80324004     +0.58310252
a   2.0903119      Node   101.52425     -0.50777165     +0.77706192
e   0.4392995      Incl.    7.13140     -0.31140552     +0.23699413
P   3.02           H   22.6           G   0.15           U   6
Residuals in seconds of arc
150626 F51  0.0   0.1-    150721 568  0.0   0.1+    150722 474  0.5-  0.4-
150626 F51  0.0   0.0     150721 568  0.1+  0.1+    150722 474  0.3+  0.2+
150626 F51  0.2+  0.1+    150721 568  0.1-  0.1+    150722 474  0.4-  0.3-
150626 F51  0.1-  0.0     150721 474  0.5-  0.1+    150722 474  0.7+  0.3+
150719 F52  0.1-  0.2-    150721 474  0.3+  0.0
150719 F52  0.2+  0.1+    150721 474  0.1+  0.0

Ephemeris:
2015 OJ22                a,e,i = 2.09, 0.44, 7                   q = 1.1720
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2015 06 22    20 43 35.2 -16 56 39   0.3249  1.2860   141.3    29.6    22.0
...
2015 07 07    21 37 05.1 -20 24 55   0.2540  1.2314   144.1    29.0    21.3
...
2015 07 15    22 11 19.6 -22 49 31   0.2284  1.2087   143.9    29.7    21.1
...
2015 07 21    22 39 06.6 -24 41 36   0.2150  1.1950   143.0    30.8    21.0
2015 07 22    22 43 51.4 -24 59 48   0.2133  1.1930   142.8    31.0    21.0
2015 07 23    22 48 37.5 -25 17 43   0.2117  1.1911   142.6    31.2    20.9
...
2015 07 29    23 17 20.9 -26 57 13   0.2046  1.1815   141.0    32.7    20.9
...
2015 08 06    23 54 08.6 -28 39 26   0.2018  1.1738   138.9    34.6    20.9
...
2015 08 21    00 48 41.3 -30 01 13   0.2121  1.1757   136.9    36.0    21.1

A. U. Tomatic                (C) Copyright 2015 MPC           M.P.E.C. 2015-O43

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