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  • MPEC 2017-X111: 2017 XB2

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    M.P.E.C. 2017-X111                               Issued 2017 Dec. 14, 15:24 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 XB2
    
    Observations:
         K17X02B* C2017 12 08.51423 12 34 01.35 +43 35 56.0          20.8 GUEX111G96
         K17X02B  C2017 12 08.52694 12 34 02.64 +43 35 43.4          21.2 GUEX111G96
         K17X02B  C2017 12 08.53329 12 34 03.34 +43 35 38.4          21.5 GUEX111G96
         K17X02B  C2017 12 08.53937 12 34 04.01 +43 35 31.9          20.8 GUEX111G96
         K17X02B  C2017 12 08.54169 12 34 04.15 +43 35 30.7          20.9 GUEX111G96
         K17X02B  C2017 12 08.54400 12 34 04.40 +43 35 27.2          21.0 GUEX111G96
         K17X02B  C2017 12 08.54627 12 34 04.79 +43 35 25.7          21.7 GUEX111G96
         K17X02B  C2017 12 09.49967212 35 46.49 +43 20 41.0          20.7 GUEX111H01
         K17X02B  C2017 12 09.50392912 35 46.93 +43 20 37.1          20.9 GUEX111H01
         K17X02B  C2017 12 09.51456112 35 48.01 +43 20 27.4          21.0 GUEX111H01
         K17X02B  C2017 12 09.52099212 35 48.70 +43 20 21.5          21.4 GUEX111H01
         K17X02B  C2017 12 10.39340312 37 20.72 +43 06 44.0          21.2 GUEX111H01
         K17X02B  C2017 12 10.40002112 37 21.41 +43 06 37.9          20.8 GUEX111H01
         K17X02B  C2017 12 10.40875312 37 22.31 +43 06 29.9          21.1 GUEX111H01
         K17X02B  C2017 12 10.41520412 37 22.97 +43 06 24.1          20.8 GUEX111H01
         K17X02B  C2017 12 13.10101 12 41 58.11 +42 23 57.3          20.5 VSEX111033
         K17X02B  C2017 12 13.10412 12 41 58.41 +42 23 54.6          20.4 VSEX111033
         K17X02B  C2017 12 13.10722 12 41 58.73 +42 23 51.3          20.9 VSEX111033
         K17X02B  C2017 12 13.11034 12 41 59.04 +42 23 48.6          20.5 VSEX111033
         K17X02B  C2017 12 13.14075 12 42 02.03 +42 23 19.9          20.8 VSEX111033
         K17X02B  C2017 12 13.14385 12 42 02.35 +42 23 16.7          20.5 VSEX111033
         K17X02B  C2017 12 13.14697 12 42 02.67 +42 23 13.9          20.5 VSEX111033
         K17X02B  C2017 12 13.15007 12 42 02.96 +42 23 11.1          20.5 VSEX111033
         K17X02B  C2017 12 13.46160 12 42 34.31 +42 18 13.2          21.0 GUEX111I52
         K17X02B  C2017 12 13.46802 12 42 34.97 +42 18 07.7          20.9 GUEX111I52
         K17X02B  C2017 12 13.46968 12 42 35.07 +42 18 05.4          20.7 GUEX111I52
         K17X02B  C2017 12 13.47382 12 42 35.53 +42 18 02.3          21.0 RoEX111926
         K17X02B  C2017 12 13.47616 12 42 35.77 +42 17 59.4          20.9 GUEX111I52
         K17X02B  C2017 12 13.47957 12 42 36.07 +42 17 57.3          21.0 RoEX111926
         K17X02B  C2017 12 13.48532 12 42 36.66 +42 17 52.2          21.5 RoEX111926
         K17X02B  C2017 12 14.46960 12 44 14.21 +42 02 00.3          21.1 GUEX111I52
         K17X02B  C2017 12 14.47311 12 44 14.54 +42 01 56.3          21.0 GUEX111I52
         K17X02B  C2017 12 14.47741 12 44 14.94 +42 01 52.6          21.1 GUEX111I52
         K17X02B  C2017 12 14.48092 12 44 15.33 +42 01 49.2          21.1 GUEX111I52
    
    Observer details:
    033 Karl Schwarzschild Observatory, Tautenburg.  Observers C. Hoegner,
        B. Stecklum.  Measurer B. Stecklum.  1.34-m f/3 Schmidt + CCD.
    926 Tenagra II Observatory.  Observers M. Schwartz, P. R. Holvorcem.  Measurer
        M. Schwartz.  0.81-m f/7 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.
    I52 Steward Observatory, Mt. Lemmon Station.  Observer 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 XB2                                                 Earth MOID = 0.1684 AU
    Epoch 2017 Sept. 4.0 TT = JDT 2458000.5                 MPC
    M 282.55898              (2000.0)            P               Q
    n   0.38037960     Peri.  221.07569     -0.88193190     +0.36229915
    a   1.8865047      Node   334.54034     +0.09275629     -0.49383882
    e   0.4279781      Incl.   44.54698     -0.46216057     -0.79048248
    P   2.59           H   18.4           G   0.15           U   9
    Residuals in seconds of arc
    171208 G96  0.1-  0.8+    171210 H01  0.0   0.0     171213 I52  0.1+  0.1+
    171208 G96  0.5-  0.2-    171210 H01  0.0   0.0     171213 I52  0.6-  0.6-
    171208 G96  0.1-  0.5+    171210 H01  0.1-  0.1+    171213 926  0.0   0.1+
    171208 G96  0.3+  0.4-    171213 033  0.1-  0.0     171213 I52  0.2+  0.5-
    171208 G96  0.8-  0.5+    171213 033  0.2-  0.2+    171213 926  0.2-  0.5+
    171208 G96  0.7-  0.9-    171213 033  0.1-  0.2-    171213 926  0.2+  0.8+
    171208 G96  1.0+  0.3-    171213 033  0.1-  0.1+    171214 I52  0.1+  0.3+
    171209 H01  0.4+  0.0     171213 033  0.2-  0.0     171214 I52  0.0   0.3-
    171209 H01  0.4+  0.0     171213 033  0.0   0.3-    171214 I52  0.1-  0.1+
    171209 H01  0.2+  0.0     171213 033  0.1+  0.1-    171214 I52  0.5+  0.0
    171209 H01  0.5+  0.0     171213 033  0.0   0.0
    171210 H01  0.1-  0.1+    171213 I52  0.3-  0.4-
    
    Ephemeris:
    2017 XB2                 a,e,i = 1.89, 0.43, 45                  q = 1.0791
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
    2017 11 14    11 42 49.7 +49 28 11   1.4740  1.6641    82.5    36.1    21.8
    ...
    2017 11 29    12 15 53.4 +45 58 00   1.2813  1.5757    87.0    38.7    21.5
    ...
    2017 12 07    12 31 16.6 +43 59 07   1.1751  1.5283    89.6    40.1    21.3
    ...
    2017 12 13    12 41 47.5 +42 25 38   1.0938  1.4928    91.7    41.2    21.1
    2017 12 14    12 43 27.3 +42 09 36   1.0802  1.4869    92.0    41.4    21.1
    2017 12 15    12 45 05.6 +41 53 25   1.0665  1.4809    92.4    41.6    21.0
    ...
    2017 12 21    12 54 21.3 +40 12 38   0.9835  1.4456    94.6    42.7    20.8
    ...
    2017 12 29    13 05 06.3 +37 44 35   0.8712  1.3991    97.8    44.1    20.5
    ...
    2018 01 13    13 19 31.0 +31 46 24   0.6577  1.3149   104.7    46.3    19.8
    
    A. U. Tomatic                (C) Copyright 2017 MPC           M.P.E.C. 2017-X111
    

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