• Processing (Info)

    • MPEC 2017-S155: 2017 RY17

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    M.P.E.C. 2017-S155                               Issued 2017 Sept. 27, 02:42 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 RY17

Observations:
     K17R17Y* C2017 09 14.41066 23 21 43.494-00 59 15.19         21.8 wLES155F51
     K17R17Y  C2017 09 14.42265 23 21 48.240-00 58 44.01         21.7 wLES155F51
     K17R17Y  C2017 09 14.43459 23 21 52.931-00 58 13.13         21.9 wLES155F51
     K17R17Y _C2017 09 15.38559723 29 22.707-00 15 19.30         21.4 RtES155568
     K17R17Y _C2017 09 15.38653923 29 23.114-00 15 16.69         21.3 RtES155568
     K17R17Y _C2017 09 15.38748823 29 23.520-00 15 14.04         21.3 RtES155568
     K17R17Y  C2017 09 22.44617 00 43 48.486+06 40 04.25         21.4 wLES155F51
     K17R17Y  C2017 09 22.45813 00 43 56.981+06 40 54.09         21.1 wLES155F51
     K17R17Y  C2017 09 26.28197 01 38 25.49 +11 10 31.5          21.2 VqES155G96
     K17R17Y  C2017 09 26.28766 01 38 30.23 +11 10 55.4          21.0 VqES155G96
     K17R17Y  C2017 09 26.29338 01 38 35.09 +11 11 20.8          20.9 VqES155G96
     K17R17Y  C2017 09 26.29908 01 38 39.82 +11 11 44.7          21.3 VqES155G96
     K17R17Y  C2017 09 26.34821301 39 20.26 +11 15 06.9          20.8 GUES155H01
     K17R17Y  C2017 09 26.35784501 39 28.32 +11 15 46.7          21.1 GUES155H01
     K17R17Y  C2017 09 26.36345701 39 33.01 +11 16 10.0          20.4 GUES155H01
     K17R17Y  C2017 09 26.36884401 39 37.52 +11 16 32.3          20.6 GUES155H01

Observer details:
568 Mauna Kea.  Observers R. J. Wainscoat, C. Crowder.  Measurers M. Micheli,
    R. J. Wainscoat.  3.6-m Canada-France-Hawaii Telescope + 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 R. G. Matheny.  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.

Orbital elements:
2017 RY17                                                Earth MOID = 0.0336 AU
Epoch 2017 Sept. 4.0 TT = JDT 2458000.5                 MPC
M 343.24056              (2000.0)            P               Q
n   0.46099382     Peri.  191.83974     +0.94251212     -0.33416916
a   1.6596098      Node   187.68270     +0.30742664     +0.86867746
e   0.3784263      Incl.    0.58685     +0.13099528     +0.36569173
P   2.14           H   27.2           G   0.15           U   7
Residuals in seconds of arc
170914 F51  0.1+  0.1+    170922 F51  0.1-  0.1+    170926 H01  0.2+  0.2+
170914 F51  0.2+  0.1+    170922 F51  0.0   0.1+    170926 H01  0.3+  0.1-
170914 F51  0.3-  0.2-    170926 G96  0.3+  0.3-    170926 H01  0.2+  0.1-
170915 568  0.1+  0.1-    170926 G96  0.5-  0.7-    170926 H01  0.2+  0.1-
170915 568  0.2+  0.2-    170926 G96  0.2+  0.4+
170915 568  0.2+  0.2-    170926 G96  0.7-  0.0

Ephemeris:
2017 RY17                a,e,i = 1.66, 0.38, 1                   q = 1.0316
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2017 08 28    22 09 18.4 -07 57 18   0.1127  1.1226   175.5     4.1    23.1
...
2017 09 12    23 05 07.9 -02 33 57   0.06602 1.0723   175.9     3.9    21.8
...
2017 09 20    00 13 55.8 +03 58 30   0.04905 1.0529   171.9     7.7    21.3
...
2017 09 26    01 34 03.9 +10 52 07   0.04286 1.0423   157.1    22.0    21.5
2017 09 27    01 49 15.1 +12 01 02   0.04254 1.0408   154.2    24.8    21.6
2017 09 28    02 04 39.1 +13 07 07   0.04243 1.0395   151.3    27.6    21.7
...
2017 10 04    03 33 12.8 +18 02 05   0.04604 1.0336   135.3    42.9    22.2
...
2017 10 12    04 57 07.0 +20 12 54   0.05878 1.0315   123.3    53.9    23.1
...
2017 10 27    06 04 44.2 +20 04 43   0.09129 1.0456   122.3    53.4    24.1

A. U. Tomatic                (C) Copyright 2017 MPC           M.P.E.C. 2017-S155

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