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    • MPEC 2017-F160: 2017 FN91

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    M.P.E.C. 2017-F160                               Issued 2017 Mar. 27, 15:35 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 FN91

Observations:
     K17F91N* C2017 03 25.25348 11 32 55.73 +05 31 24.9          21.6 VqEF160G96
     K17F91N  C2017 03 25.25776 11 32 56.86 +05 30 58.7          21.0 VqEF160G96
     K17F91N  C2017 03 25.26203 11 32 58.09 +05 30 32.5          20.3 VqEF160G96
     K17F91N  C2017 03 25.26631 11 32 59.20 +05 30 07.3          21.4 VqEF160G96
     K17F91N  C2017 03 25.38566 11 33 31.25 +05 18 12.5          21.1 VqEF160I52
     K17F91N  C2017 03 25.39116 11 33 32.79 +05 17 37.5          21.1 VqEF160I52
     K17F91N  C2017 03 25.80770 11 35 42.07 +04 36 36.4          20.5 VSEF160033
     K17F91N  C2017 03 25.81286 11 35 43.50 +04 36 06.8          20.0 VSEF160033
     K17F91N  C2017 03 25.81802 11 35 44.88 +04 35 37.1          20.0 VSEF160033
     K17F91N  C2017 03 25.82320 11 35 46.26 +04 35 07.6          20.5 VSEF160033
     K17F91N KC2017 03 25.88522411 36 05.718+04 29 40.59         21.1 GUEF160J04
     K17F91N KC2017 03 25.89172311 36 07.462+04 29 03.18               UEF160J04
     K17F91N  C2017 03 26.34284 11 38 09.37 +03 46 34.0          21.4 VqEF160I52
     K17F91N  C2017 03 26.34430 11 38 09.71 +03 46 25.3          21.8 VqEF160I52
     K17F91N  C2017 03 26.34576 11 38 10.04 +03 46 16.7          22.1 VqEF160I52
     K17F91N  C2017 03 26.34976 11 38 10.99 +03 45 56.2                qEF160I52
     K17F91N  C2017 03 26.34987 11 38 11.10 +03 45 56.0          20.8 RoEF160926
     K17F91N  C2017 03 26.35563 11 38 12.53 +03 45 23.9          20.5 RoEF160926
     K17F91N  C2017 03 26.36010 11 38 13.67 +03 44 59.4          20.9 RoEF160926
     K17F91N  C2017 03 27.17351 11 41 59.47 +02 31 57.3                qEF160I52
     K17F91N  C2017 03 27.17496 11 41 59.80 +02 31 51.6                qEF160I52
     K17F91N  C2017 03 27.17787 11 42 00.55 +02 31 35.9          22.6 VqEF160I52

Observer details:
033 Karl Schwarzschild Observatory, Tautenburg.  Observers U. Laux,
    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.  0.41-m f/3.75 astrograph + CCD, 0.81-m f/7 Ritchey-Chretien
    + CCD.
G96 Mt. Lemmon Survey.  Observer A. D. Grauer.  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.
I52 Steward Observatory, Mt. Lemmon Station.  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.  1.0-m reflector + CCD.
J04 ESA Optical Ground Station, Tenerife.  Observer D. Abreu.  Measurers
    M. Micheli, D. Koschny, E. Schwab, M. Busch, A. Knoefel.  1.0-m f/4.4
    reflector + CCD.

Orbital elements:
2017 FN91                                                Earth MOID = 0.0483 AU
Epoch 2017 Feb. 16.0 TT = JDT 2457800.5                 MPC
M 358.34696              (2000.0)            P               Q
n   0.37394317     Peri.  140.79588     -0.83736364     -0.54658563
a   1.9080905      Node     6.08762     +0.48025478     -0.74269650
e   0.4671925      Incl.    4.40316     +0.26110818     -0.38684114
P   2.64           H   25.4           G   0.15           U   6
Residuals in seconds of arc
170325 G96  0.7-  0.6+    170325 033  0.2+  0.1-    170326 926  0.4+  0.2+
170325 G96  0.9-  0.1+    170325 033  0.2-  0.2+    170326 926  0.3+  0.1+
170325 G96  0.4+  0.5-    170325 J04  0.2+  0.0     170326 926  0.8+  0.4+
170325 G96  0.1-  0.1-    170325 J04  0.6+  0.4-    170327 I52  0.4-  1.3-
170325 I52  0.4+  0.7-    170326 I52  0.4+  0.5+    170327 I52  0.6-  0.5+
170325 I52 (1.0+  2.8-)   170326 I52  0.0   0.1-    170327 I52  0.3+  0.0
170325 033  0.2+  0.0     170326 I52  0.5-  0.6-
170325 033  0.5+  0.0     170326 I52  1.1-  1.2+

Ephemeris:
2017 FN91                a,e,i = 1.91, 0.47, 4                   q = 1.0166
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2017 02 25    05 32 49.6 +53 11 39   0.08751 1.0180   106.4    68.9    22.6
...
2017 03 12    09 34 37.3 +36 47 18   0.06395 1.0417   137.6    40.0    21.1
...
2017 03 20    11 00 11.2 +16 00 37   0.07431 1.0654   158.8    19.7    20.9
...
2017 03 26    11 36 34.2 +04 19 30   0.09211 1.0877   167.5    11.4    21.1
2017 03 27    11 41 10.2 +02 48 01   0.09569 1.0917   168.3    10.7    21.2
2017 03 28    11 45 26.9 +01 22 59   0.09942 1.0958   168.8    10.2    21.2
...
2017 04 03    12 05 53.4 -05 13 55   0.1245  1.1224   169.4     9.5    21.8
...
2017 04 11    12 24 10.9 -10 33 45   0.1639  1.1621   166.6    11.6    22.5
...
2017 04 26    12 46 12.9 -15 17 15   0.2542  1.2465   158.7    17.0    23.8

A. U. Tomatic                (C) Copyright 2017 MPC           M.P.E.C. 2017-F160

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