• Processing (Info)

    • MPEC 2017-X139: 2017 XN60

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    M.P.E.C. 2017-X139                               Issued 2017 Dec. 15, 21:35 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 XN60

Observations:
     K17X60N* C2017 12 13.37415 09 47 34.56 +50 23 21.0          19.8 GUEX139703
     K17X60N  C2017 12 13.37952 09 47 35.75 +50 22 51.9          19.7 GUEX139703
     K17X60N  C2017 12 13.38489 09 47 36.95 +50 22 25.8          19.9 GUEX139703
     K17X60N  C2017 12 13.39025 09 47 38.04 +50 21 57.1          19.6 GUEX139703
     K17X60N  C2017 12 13.50820 09 48 00.15 +50 11 02.1          19.6 GUEX139I52
     K17X60N  C2017 12 13.50862 09 48 00.20 +50 10 59.8          19.6 GUEX139I52
     K17X60N  C2017 12 13.50903 09 48 00.31 +50 10 57.4          19.6 GUEX139I52
     K17X60N  C2017 12 13.50944 09 48 00.37 +50 10 54.9          19.6 GUEX139I52
     K17X60N  C2017 12 13.87267 09 50 12.27 +49 33 49.2          21.1 VSEX139033
     K17X60N  C2017 12 13.87498 09 50 12.92 +49 33 39.2          21.0 VSEX139033
     K17X60N  C2017 12 13.87727 09 50 13.65 +49 33 28.6          21.1 VSEX139033
     K17X60N  C2017 12 14.36502 09 52 21.85 +48 56 00.7          19.9 GUEX139I52
     K17X60N  C2017 12 14.36578 09 52 21.94 +48 55 57.7          19.9 GUEX139I52
     K17X60N  C2017 12 14.36655 09 52 22.06 +48 55 54.4          20.0 GUEX139I52
     K17X60N  C2017 12 14.36731 09 52 22.20 +48 55 51.3          20.0 GUEX139I52
     K17X60N  C2017 12 14.50795 09 52 38.77 +48 45 45.2          20.2 RoEX139926
     K17X60N  C2017 12 14.51414 09 52 39.39 +48 45 16.3          20.1 RoEX139926
     K17X60N  C2017 12 14.52035 09 52 40.05 +48 44 46.7          20.3 RoEX139926
     K17X60N  C2017 12 15.37221 09 55 52.85 +47 44 52.7          20.2 GUEX139I52
     K17X60N  C2017 12 15.37518 09 55 53.13 +47 44 43.2          20.1 GUEX139I52
     K17X60N  C2017 12 15.37594 09 55 53.22 +47 44 40.5          20.0 GUEX139I52
     K17X60N  C2017 12 15.39196 09 55 54.56 +47 43 48.1          20.4 GUEX139I52

Observer details:
033 Karl Schwarzschild Observatory, Tautenburg.  Observers C. Hoegner,
    B. Stecklum.  Measurer B. Stecklum.  1.34-m f/3 Schmidt + CCD.
703 Catalina Sky Survey.  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.  0.68-m Schmidt + 10K CCD.
926 Tenagra II Observatory.  Observers M. Schwartz, P. R. Holvorcem.  Measurer
    M. Schwartz.  0.81-m f/7 Ritchey-Chretien + 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 XN60                                                Earth MOID = 0.0026 AU
Epoch 2017 Sept. 4.0 TT = JDT 2458000.5                 MPC
M 327.50191              (2000.0)            P               Q
n   0.37942036     Peri.  354.29181     +0.42855907     -0.89996186
a   1.8896830      Node    70.31055     +0.83228454     +0.35874706
e   0.4780985      Incl.    4.87638     +0.35162419     +0.24772808
P   2.60           H   25.6           G   0.15           U   5
Residuals in seconds of arc
171213 703  0.2-  0.2+    171213 033  0.3+  0.2-    171214 926  0.1-  0.3+
171213 703  0.2-  1.1-    171213 033  0.2-  0.1+    171214 926  0.0   0.1+
171213 703  0.2+  0.7+    171213 033  0.2+  0.3-    171215 I52  0.1-  0.1-
171213 703  0.3-  0.1+    171214 I52  0.1+  0.1-    171215 I52  0.0   0.0
171213 I52  0.2+  0.2-    171214 I52  0.1-  0.0     171215 I52  0.3+  0.2-
171213 I52  0.0   0.1-    171214 I52  0.0   0.2-    171215 I52  0.1-  0.2-
171213 I52  0.3+  0.0     171214 I52  0.2+  0.3-
171213 I52  0.2+  0.1-    171214 926  0.2+  0.0

Ephemeris:
2017 XN60                a,e,i = 1.89, 0.48, 5                   q = 0.9862
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2017 11 15    22 35 32.3 -33 11 11   0.08407 0.9996    94.7    80.5    23.0
...
2017 11 30    22 56 36.8 -21 03 46   0.02566 0.9864    89.5    89.0    20.8
...
2017 12 08    06 42 28.9 +70 05 01   0.01154 0.9925   130.2    49.3    17.7
...
2017 12 14    09 50 31.1 +49 25 27   0.03381 1.0030   122.6    55.8    20.3
2017 12 15    09 54 28.8 +48 09 06   0.03779 1.0052   122.7    55.5    20.5
2017 12 16    09 57 24.3 +47 06 59   0.04178 1.0076   123.0    55.0    20.7
...
2017 12 22    10 04 29.2 +43 31 28   0.06592 1.0244   126.6    50.5    21.6
...
2017 12 30    10 03 01.0 +41 26 00   0.09856 1.0535   133.4    42.7    22.3
...
2018 01 14    09 48 34.4 +39 21 33   0.1634  1.1249   147.5    28.0    23.2

A. U. Tomatic                (C) Copyright 2017 MPC           M.P.E.C. 2017-X139

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