[Iaude] MPEC H81: 2017 HU4 [a=2.20,e=0.42,i=5.6,H=22.4]

mpec at si.edu mpec at si.edu
Sat Apr 29 22:09:41 EDT 2017


M.P.E.C. 2017-H81                                Issued 2017 Apr. 30, 02:06 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 at CFA.HARVARD.EDU
            URL http://www.minorplanetcenter.net/    ISSN 1523-6714


                                   2017 HU4
 
Observations:
     K17H04U* C2017 04 25.41763 14 06 25.285-20 49 46.87         21.1 wLEH081F51
     K17H04U  C2017 04 25.43972 14 06 24.548-20 50 12.59         21.1 wLEH081F51
     K17H04U  C2017 04 25.45074 14 06 24.179-20 50 25.30         21.2 wLEH081F51
     K17H04U |C2017 04 26.08177 14 06 11.33 -21 02 14.5          21.2 VuEH081807
     K17H04U |C2017 04 26.08740 14 06 11.15 -21 02 21.3          21.1 VuEH081807
     K17H04U |C2017 04 26.09322 14 06 10.98 -21 02 28.4          21.7 VuEH081807
     K17H04U _C2017 04 26.50828814 05 59.800-21 10 53.54         20.9 GUEH081568
     K17H04U _C2017 04 26.50927514 05 59.769-21 10 54.65         20.9 GUEH081568
     K17H04U _C2017 04 26.51026614 05 59.737-21 10 55.82         20.9 GUEH081568
     K17H04U |C2017 04 27.14783 14 05 46.64 -21 23 00.6          21.3 VuEH081807
     K17H04U |C2017 04 27.15247 14 05 46.47 -21 23 06.3          21.1 VuEH081807
     K17H04U |C2017 04 27.15724 14 05 46.31 -21 23 11.8          20.9 VuEH081807
     K17H04U |C2017 04 28.14821 14 05 23.91 -21 42 35.8          20.9 VuEH081807
     K17H04U |C2017 04 28.15198 14 05 23.81 -21 42 40.3          21.2 VuEH081807
     K17H04U |C2017 04 28.15574 14 05 23.70 -21 42 44.9          21.0 VuEH081807
     K17H04U |C2017 04 29.08373 14 05 03.34 -22 00 59.1          21.3 VuEH081807
     K17H04U |C2017 04 29.08750 14 05 03.22 -22 01 04.0          21.2 VuEH081807
     K17H04U |C2017 04 29.09126 14 05 03.12 -22 01 08.7          21.4 VuEH081807
 
Observer details:
568 Mauna Kea.  Observers R. J. Wainscoat, D. Woodworth.  Measurers M. Micheli,
    R. J. Wainscoat.  3.6-m Canada-France-Hawaii Telescope + CCD.
807 Cerro Tololo.  Observers T. Linder, R. Holmes.  0.61-m f/6.5 astrograph
    + CCD.
F51 Pan-STARRS 1, Haleakala.  Observers B. Gibson, T. Goggia, S. Kahale,
    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.
 
Orbital elements:
2017 HU4                                                 Earth MOID = 0.2730 AU
Epoch 2017 Feb. 16.0 TT = JDT 2457800.5                 MPC
M 326.50815              (2000.0)            P               Q
n   0.30106142     Peri.  233.41889     -0.35122615     +0.93589332
a   2.2047836      Node    16.08489     -0.82451868     -0.29536407
e   0.4232429      Incl.    5.64940     -0.44363176     -0.19199937
P   3.27           H   22.4           G   0.15           U   7
Residuals in seconds of arc
170425 F51  0.0   0.1+    170426 568  0.1-  0.0     170428 807  0.1-  0.1+
170425 F51  0.0   0.0     170426 568  0.0   0.0     170428 807  0.2+  0.1+
170425 F51  0.0   0.0     170426 568  0.0   0.1-    170428 807  0.4+  0.0
170426 807  0.1-  0.1+    170427 807  0.0   0.1+    170429 807  0.1-  0.2+
170426 807  0.2-  0.1+    170427 807  0.3-  0.1-    170429 807  0.1-  0.1-
170426 807  0.1-  0.1-    170427 807  0.3-  0.1+    170429 807  0.1+  0.2-

Ephemeris:
2017 HU4                 a,e,i = 2.20, 0.42, 6                   q = 1.2716
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2017 03 31    14 09 24.1 -13 40 19   0.4627  1.4327   155.4    16.9    22.4
...
2017 04 15    14 09 32.3 -17 37 19   0.3766  1.3738   168.0     8.7    21.6
...
2017 04 23    14 07 17.5 -20 03 14   0.3437  1.3468   172.3     5.7    21.2
...
2017 04 29    14 05 04.3 -21 59 25   0.3249  1.3289   171.0     6.8    21.1
2017 04 30    14 04 41.8 -22 19 11   0.3222  1.3262   170.5     7.2    21.1
2017 05 01    14 04 19.8 -22 39 02   0.3197  1.3234   169.8     7.7    21.1
...
2017 05 07    14 02 24.3 -24 39 24   0.3073  1.3085   165.2    11.3    21.1
...
2017 05 15    14 01 19.0 -27 19 35   0.2974  1.2923   158.6    16.6    21.2
...
2017 05 30    14 07 45.5 -31 57 22   0.2973  1.2743   147.4    25.4    21.5

A. U. Tomatic                (C) Copyright 2017 MPC           M.P.E.C. 2017-H81




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