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    • MPEC 2015-X149: 2015 XQ261

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    M.P.E.C. 2015-X149                               Issued 2015 Dec. 12, 00:26 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

                                  2015 XQ261

Observations:
     K15XQ1Q* C2015 12 06.47486 05 00 31.364+17 14 46.55         21.3 wLEX149F51
     K15XQ1Q  C2015 12 06.48843 05 00 31.965+17 14 41.88         21.4 wLEX149F51
     K15XQ1Q  C2015 12 06.50209 05 00 32.553+17 14 36.55         21.6 wLEX149F51
     K15XQ1Q  C2015 12 07.48078 05 01 25.703+17 09 00.06         21.7 wLEX149F51
     K15XQ1Q  C2015 12 07.49199 05 01 26.186+17 08 56.10         21.6 wLEX149F51
     K15XQ1Q  C2015 12 07.50324 05 01 26.691+17 08 51.80         21.5 wLEX149F51
     K15XQ1Q _C2015 12 07.50587205 01 26.775+17 08 51.47         21.3 RtEX149568
     K15XQ1Q _C2015 12 07.50719305 01 26.834+17 08 51.00         21.3 RtEX149568
     K15XQ1Q _C2015 12 07.50851405 01 26.892+17 08 50.53         21.2 RtEX149568
     K15XQ1Q  C2015 12 08.17415205 02 04.55 +17 04 59.4          21.6 VtEX149H01
     K15XQ1Q  C2015 12 08.18146405 02 04.89 +17 04 57.3          21.8 VtEX149H01
     K15XQ1Q  C2015 12 08.19043405 02 05.31 +17 04 54.6          21.7 VtEX149H01
     K15XQ1Q  C2015 12 08.19793605 02 05.65 +17 04 52.3          21.7 VtEX149H01
     K15XQ1Q  C2015 12 08.26870 05 02 08.97 +17 04 30.0          22.4 VqEX149G96
     K15XQ1Q  C2015 12 08.27485 05 02 09.24 +17 04 28.5          21.1 VqEX149G96
     K15XQ1Q  C2015 12 08.28101 05 02 09.45 +17 04 26.0          21.2 VqEX149G96
     K15XQ1Q  C2015 12 08.28716 05 02 09.75 +17 04 25.0                qEX149G96
     K15XQ1Q _C2015 12 11.46575305 04 58.468+16 47 50.12         21.4 RtEX149568
     K15XQ1Q _C2015 12 11.47110005 04 58.693+16 47 48.49         21.4 RtEX149568
     K15XQ1Q _C2015 12 11.47698705 04 58.964+16 47 46.62         21.1 RtEX149568

Observer details:
568 Mauna Kea.  Observers R. J. Wainscoat, L. Wells.  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.
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 + CCD.
H01 Magdalena Ridge Observatory, Socorro.  Observers W. H. Ryan, E. V. Ryan.
    Measurer W. H. Ryan.  2.4-m f/8.9 reflector + CCD.

Orbital elements:
2015 XQ261
Epoch 2016 Jan. 13.0 TT = JDT 2457400.5                 MPC
M   7.07086              (2000.0)            P               Q
n   0.19331248     Peri.  213.94310     +0.25781575     -0.96575521
a   2.9623029      Node   221.13775     +0.89600666     +0.25025548
e   0.5545537      Incl.    2.53688     +0.36152885     +0.06847675
P   5.10           H   22.9           G   0.15           U   7
Residuals in seconds of arc
151206 F51  0.1+  0.1-    151207 568  0.0   0.1+    151208 G96  0.6+  0.2+
151206 F51  0.1+  0.2+    151207 568  0.1-  0.1+    151208 G96  0.3-  0.3-
151206 F51  0.1-  0.1-    151208 H01  0.0   0.1-    151208 G96  0.1+  0.7+
151207 F51  0.0   0.1+    151208 H01  0.0   0.1+    151211 568  0.1-  0.1-
151207 F51  0.1-  0.1+    151208 H01  0.0   0.1+    151211 568  0.1-  0.0
151207 F51  0.0   0.2-    151208 H01  0.0   0.2+    151211 568  0.1+  0.1-
151207 568  0.1-  0.1+    151208 G96  0.6+  0.3-

Ephemeris:
2015 XQ261               a,e,i = 2.96, 0.55, 3                   q = 1.3195
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2015 11 12    04 34 18.0 +19 49 24   0.3776  1.3494   159.1    15.2    22.3
...
2015 11 27    04 51 28.8 +18 14 47   0.3420  1.3246   169.6     7.7    21.7
...
2015 12 05    04 59 11.1 +17 23 33   0.3357  1.3198   173.9     4.6    21.5
...
2015 12 11    05 04 34.2 +16 50 11   0.3368  1.3201   173.8     4.6    21.5
2015 12 12    05 05 27.2 +16 45 16   0.3375  1.3205   173.4     4.9    21.6
2015 12 13    05 06 20.3 +16 40 32   0.3383  1.3210   173.0     5.2    21.6
...
2015 12 19    05 11 42.6 +16 16 57   0.3462  1.3258   169.5     7.8    21.8
...
2015 12 27    05 19 20.0 +15 59 07   0.3645  1.3374   163.9    11.8    22.1
...
2016 01 11    05 36 01.3 +16 04 28   0.4225  1.3741   153.3    18.8    22.7

A. U. Tomatic                (C) Copyright 2015 MPC           M.P.E.C. 2015-X149

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