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  • MPEC 2017-X110: 2017 XJ2

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    M.P.E.C. 2017-X110                               Issued 2017 Dec. 14, 15:20 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
    
                                       2017 XJ2
    
    Observations:
         K17X02J* C2017 12 09.36601 07 39 51.14 +35 58 48.0          21.1 GUEX110G96
         K17X02J  C2017 12 09.37116 07 39 52.79 +35 58 33.2          22.2 GUEX110G96
         K17X02J  C2017 12 09.37632 07 39 54.39 +35 58 16.9          21.3 GUEX110G96
         K17X02J  C2017 12 09.38151 07 39 56.03 +35 58 01.8          21.5 GUEX110G96
         K17X02J  C2017 12 09.45447607 40 18.82 +35 54 13.4          21.1 GUEX110H01
         K17X02J  C2017 12 09.45800 07 40 20.42 +35 54 06.3          20.7 GUEX110I52
         K17X02J  C2017 12 09.45831007 40 20.04 +35 54 01.3          21.4 GUEX110H01
         K17X02J  C2017 12 09.46299 07 40 22.01 +35 53 49.3                UEX110I52
         K17X02J  C2017 12 09.46819907 40 23.18 +35 53 29.9          21.0 GUEX110H01
         K17X02J  C2017 12 09.47676707 40 25.91 +35 53 02.6          21.0 GUEX110H01
         K17X02J  C2017 12 09.49940 07 40 33.52 +35 51 52.8                UEX110I52
         K17X02J  C2017 12 09.50576 07 40 35.59 +35 51 32.1          21.0 GUEX110I52
         K17X02J  C2017 12 09.51214 07 40 37.63 +35 51 11.9                UEX110I52
         K17X02J  C2017 12 09.51850 07 40 39.60 +35 50 51.4                UEX110I52
         K17X02J KC2017 12 10.33034907 45 19.90 +35 08 31.7          21.2 VuEX110H21
         K17X02J KC2017 12 10.33849207 45 22.41 +35 08 06.1          21.5 VuEX110H21
         K17X02J KC2017 12 10.34852507 45 25.53 +35 07 34.4          21.5 VuEX110H21
         K17X02J  C2017 12 10.36546907 45 32.26 +35 06 46.7          21.4 GUEX110H01
         K17X02J  C2017 12 10.37246307 45 34.40 +35 06 24.8          20.8 GUEX110H01
         K17X02J  C2017 12 10.37940607 45 36.52 +35 06 03.0          21.0 GUEX110H01
         K17X02J  C2017 12 10.38709807 45 38.87 +35 05 38.8          20.9 GUEX110H01
         K17X02J KC2017 12 11.35286207 50 56.57 +34 13 54.7          21.0 VuEX110H21
         K17X02J KC2017 12 11.36959707 51 01.51 +34 13 00.5          21.1 VuEX110H21
         K17X02J  C2017 12 12.43701 07 56 39.57 +33 14 48.2          21.7 RoEX110926
         K17X02J  C2017 12 12.44076 07 56 40.59 +33 14 34.2          21.9 GUEX110I52
         K17X02J  C2017 12 12.44263 07 56 41.06 +33 14 29.3          21.7 RoEX110926
         K17X02J  C2017 12 12.44729 07 56 42.38 +33 14 12.9                UEX110I52
         K17X02J  C2017 12 12.44824 07 56 42.66 +33 14 09.9          20.8 RoEX110926
         K17X02J  C2017 12 12.45391 07 56 44.23 +33 13 49.5                UEX110I52
         K17X02J  C2017 12 13.29534 08 01 05.12 +32 26 54.1          21.4 RoEX110926
         K17X02J  C2017 12 13.30095 08 01 06.63 +32 26 35.9          21.3 RoEX110926
         K17X02J  C2017 12 13.30657 08 01 08.19 +32 26 16.6          20.8 RoEX110926
         K17X02J  C2017 12 13.43174 08 01 42.00 +32 19 21.8          20.7 GUEX110I52
         K17X02J  C2017 12 13.44168 08 01 44.65 +32 18 48.5          20.4 GUEX110I52
         K17X02J  C2017 12 13.46620 08 01 55.094+32 17 37.14         21.3 wUEX110F51
         K17X02J  C2017 12 13.47814 08 01 58.283+32 16 58.17         21.2 wUEX110F51
         K17X02J  C2017 12 13.49010 08 02 01.454+32 16 18.62         21.2 wUEX110F51
         K17X02J  C2017 12 13.50205 08 02 04.615+32 15 39.27         21.6 wUEX110F51
         K17X02J  C2017 12 14.28181 08 05 54.45 +31 31 12.6          20.8 GUEX110I52
         K17X02J  C2017 12 14.28482 08 05 55.30 +31 31 02.9          20.5 GUEX110I52
         K17X02J  C2017 12 14.28730 08 05 55.93 +31 30 55.4          21.1 GUEX110I52
         K17X02J  C2017 12 14.31470 08 06 03.12 +31 29 27.2          20.9 RoEX110926
         K17X02J  C2017 12 14.32306 08 06 05.30 +31 29 00.3          20.8 RoEX110926
         K17X02J  C2017 12 14.33133 08 06 07.46 +31 28 32.5          20.8 RoEX110926
    
    Observer details:
    926 Tenagra II Observatory.  Observers M. Schwartz, P. R. Holvorcem.  Measurer
        M. Schwartz.  0.81-m f/7 Ritchey-Chretien + CCD.
    F51 Pan-STARRS 1, Haleakala.  Observers J. Bulger, T. Lowe, 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 G. J. Leonard.  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.
    H01 Magdalena Ridge Observatory, Socorro.  Observers W. H. Ryan, E. V. Ryan.
        Measurer W. H. Ryan.  2.4-m f/8.9 reflector + CCD.
    H21 Astronomical Research Observatory, Westfield.  Observer R. Holmes.
        Measurers S. Foglia, L. Buzzi, T. Linder, R. Holmes.  0.61-m f/4.5
        astrograph + CCD, 0.81-m f/4.0 astrograph + CCD.
    I52 Steward Observatory, Mt. Lemmon Station.  Observers R. G. Matheny,
        D. C. Fuls, E. J. Christensen.  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:
    2017 XJ2                                                 Earth MOID = 0.1060 AU
    Epoch 2017 Sept. 4.0 TT = JDT 2458000.5                 MPC
    M 324.97443              (2000.0)            P               Q
    n   0.34631600     Peri.  163.53588     +0.07464029     -0.99435863
    a   2.0082650      Node   282.13619     +0.90601270     +0.09919414
    e   0.4589130      Incl.    4.42114     +0.41661712     -0.03756911
    P   2.85           H   24.3           G   0.15           U   6
    Residuals in seconds of arc
    171209 G96  0.5-  0.4-    171210 H21  0.1+  0.1+    171213 926  0.4+  0.0
    171209 G96  0.3-  0.4+    171210 H21  0.5+  0.1+    171213 926  0.5+  1.1-
    171209 G96  0.8-  0.3-    171210 H01  0.1-  0.1+    171213 I52  0.4+  0.5-
    171209 G96  0.8-  0.3+    171210 H01  0.1-  0.0     171213 I52  0.2+  0.0
    171209 H01  1.0-  0.1+    171210 H01  0.2-  0.0     171213 F51  0.1-  0.1+
    171209 I52  1.6+  1.5+    171210 H01  0.1-  0.0     171213 F51  0.1-  0.2+
    171209 H01  1.0-  0.1+    171211 H21  0.1+  0.5-    171213 F51  0.2-  0.1+
    171209 I52  1.7+  0.3+    171211 H21  0.0   0.1-    171213 F51  0.3-  0.3+
    171209 H01  1.1-  0.0     171212 926  0.8+  0.1+    171214 I52  0.7+  1.1-
    171209 H01  1.1-  0.0     171212 I52  0.4+  0.2-    171214 I52  1.3+  1.0-
    171209 I52  0.8+  0.4-    171212 926  0.2-  0.0     171214 I52  0.9+  0.4-
    171209 I52  1.2+  0.7-    171212 I52  0.1-  0.5+    171214 926  0.2-  0.1+
    171209 I52  1.1+  0.4-    171212 926  0.1+  0.6-    171214 926  0.4-  0.7+
    171209 I52  0.2+  0.4-    171212 I52  0.2-  0.7-    171214 926  0.3-  0.2+
    171210 H21  0.1+  0.1+    171213 926  1.0+  0.1+
    
    Ephemeris:
    2017 XJ2                 a,e,i = 2.01, 0.46, 4                   q = 1.0866
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
    2017 11 14    04 52 39.9 +44 42 00   0.1716  1.1368   146.7    28.5    22.0
    ...
    2017 11 29    06 31 41.7 +42 53 38   0.1348  1.0997   145.1    30.9    21.5
    ...
    2017 12 07    07 25 36.2 +37 55 08   0.1256  1.0895   144.2    31.9    21.3
    ...
    2017 12 13    07 59 32.6 +32 43 34   0.1236  1.0867   143.8    32.3    21.3
    2017 12 14    08 04 29.3 +31 47 25   0.1236  1.0866   143.8    32.4    21.3
    2017 12 15    08 09 13.4 +30 50 36   0.1238  1.0866   143.8    32.4    21.3
    ...
    2017 12 21    08 33 17.6 +25 06 20   0.1269  1.0893   144.2    31.9    21.4
    ...
    2017 12 29    08 54 59.0 +18 01 08   0.1363  1.0991   146.1    29.9    21.5
    ...
    2018 01 13    09 12 32.9 +08 31 18   0.1673  1.1358   153.6    22.6    21.8
    
    A. U. Tomatic                (C) Copyright 2017 MPC           M.P.E.C. 2017-X110
    

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    MPEC number:

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