[Iaude] MPEC H84: 2017 HX4 [a=1.78,e=0.50,i=5.5,H=26.3]

mpec at si.edu mpec at si.edu
Sat Apr 29 22:21:21 EDT 2017


M.P.E.C. 2017-H84                                Issued 2017 Apr. 30, 02:16 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 HX4
 
Observations:
     K17H04X* C2017 04 26.38382 13 57 59.366-02 29 59.98         21.7 wLEH084F51
     K17H04X  C2017 04 26.39447 13 57 58.744-02 30 19.09         21.9 wLEH084F51
     K17H04X  C2017 04 26.40515 13 57 58.124-02 30 38.02         21.5 wLEH084F51
     K17H04X |C2017 04 27.12248 13 57 46.51 -02 51 43.3          21.7 VuEH084807
     K17H04X |C2017 04 27.12932 13 57 46.14 -02 51 57.2          21.8 VuEH084807
     K17H04X |C2017 04 27.13617 13 57 45.72 -02 52 10.8          21.5 VuEH084807
     K17H04X KC2017 04 27.25725313 57 38.64 -02 56 18.6          21.6 GUEH084W86
     K17H04X KC2017 04 27.26592013 57 38.16 -02 56 36.5          21.7 GUEH084W86
     K17H04X KC2017 04 27.27458913 57 37.68 -02 56 54.5          21.7 GUEH084W86
     K17H04X _C2017 04 27.49150713 57 33.611-03 06 10.85         21.4 GUEH084568
     K17H04X _C2017 04 27.49272813 57 33.536-03 06 13.52         21.4 GUEH084568
     K17H04X _C2017 04 27.49394613 57 33.461-03 06 16.22         21.4 GUEH084568
     K17H04X |C2017 04 28.10074 13 57 27.29 -03 27 59.8          21.3 VuEH084807
     K17H04X |C2017 04 28.10639 13 57 26.97 -03 28 13.7          21.4 VuEH084807
     K17H04X |C2017 04 28.11219 13 57 26.62 -03 28 27.9          21.4 VuEH084807
     K17H04X |C2017 04 29.06852 13 57 05.93 -04 11 47.6          21.3 VuEH084807
     K17H04X |C2017 04 29.07228 13 57 05.70 -04 11 59.0          21.3 VuEH084807
     K17H04X |C2017 04 29.07605 13 57 05.46 -04 12 10.1          21.4 VuEH084807
 
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.
W86 Cerro Tololo-LCOGT B.  Observers T. Lister, S. Greenstreet, E. Gomez.
    Measurers T. Lister, T. Linder.  1.0-m f/8 Ritchey-Chretien + CCD.
 
Orbital elements:
2017 HX4                                                 Earth MOID = 0.0094 AU
Epoch 2017 Feb. 16.0 TT = JDT 2457800.5                 MPC
M 309.96138              (2000.0)            P               Q
n   0.41514800     Peri.  236.86763     +0.16465206     +0.98419935
a   1.7796479      Node    42.76171     -0.87000268     +0.17602296
e   0.5033647      Incl.    5.50433     -0.46474190     +0.01917194
P   2.37           H   26.3           G   0.15           U   7
Residuals in seconds of arc
170426 F51  0.1+  0.2+    170427 W86  0.2+  0.1+    170428 807  0.2-  0.1-
170426 F51  0.0   0.1-    170427 W86  0.2+  0.0     170428 807  0.2+  0.1-
170426 F51  0.0   0.1-    170427 W86  0.1+  0.2-    170428 807  0.3+  0.1+
170427 807  0.4-  0.0     170427 568  0.1-  0.0     170429 807  0.1-  0.1-
170427 807  0.1-  0.0     170427 568  0.1-  0.0     170429 807  0.0   0.1-
170427 807  0.5-  0.3+    170427 568  0.1-  0.1-    170429 807  0.0   0.3+

Ephemeris:
2017 HX4                 a,e,i = 1.78, 0.50, 6                   q = 0.8838
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2017 03 31    13 57 36.6 +00 18 05   0.2960  1.2805   159.5    15.8    25.1
...
2017 04 15    13 59 35.4 +00 00 33   0.1695  1.1696   168.2    10.1    23.4
...
2017 04 23    13 58 46.5 -01 14 22   0.1093  1.1129   168.8    10.1    22.4
...
2017 04 29    13 57 02.9 -04 09 20   0.06661 1.0722   167.7    11.6    21.3
2017 04 30    13 56 35.7 -05 04 49   0.05966 1.0656   167.5    11.8    21.0
2017 05 01    13 56 03.2 -06 15 23   0.05277 1.0591   167.5    11.9    20.8
...
2017 05 07    13 41 39.9 -38 18 34   0.01404 1.0215   153.0    26.6    18.3
...
2017 05 15    02 03 52.8 -15 44 29   0.04584 0.9762    40.1   138.1    26.2
...
2017 05 30    02 05 46.7 -06 03 57   0.1510  0.9120    44.4   128.9    27.6

A. U. Tomatic                (C) Copyright 2017 MPC           M.P.E.C. 2017-H84




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