MPEC 2017-H81 : 2017 HU4
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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@CFA.HARVARD.EDU
URL https://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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