MPEC 2015-T40 : 2014 HR4
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M.P.E.C. 2015-T40 Issued 2015 Oct. 9, 15:17 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
2014 HR4
Revision to MPEC 2014-H38
Additional Observations:
K14H04R KC2015 10 08.17526 05 46 10.01 +10 04 46.4 20.6 RtET040J04
K14H04R KC2015 10 08.18280 05 46 10.48 +10 04 56.8 21.1 RtET040J04
K14H04R KC2015 10 08.19034 05 46 11.04 +10 05 07.4 20.6 RtET040J04
K14H04R KC2015 10 09.19519 05 47 21.50 +10 28 18.6 21.0 RtET040J04
K14H04R KC2015 10 09.19897 05 47 21.68 +10 28 24.3 20.7 RtET040J04
K14H04R KC2015 10 09.20277 05 47 21.94 +10 28 29.6 21.4 RtET040J04
Observer details:
J04 ESA Optical Ground Station, Tenerife. Observer P. Ruiz. Measurers
E. Schwab, M. Micheli, D. Koschny, A. Knoefel, M. Busch. 1.0-m f/4.4
reflector + CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
151008 J04 0.03+ 0.03+ 151009 J04 0.03+ 0.03+ MPO300686 -0.059 day
Orbital elements:
2014 HR4 Earth MOID = 0.4424 AU
Epoch 2016 Jan. 13.0 TT = JDT 2457400.5 MPC
M 348.59103 (2000.0) P Q
n 0.44648423 Peri. 67.84490 -0.43978717 -0.74163480
a 1.6953732 Node 58.59885 +0.43304598 -0.66920992
e 0.2425819 Incl. 36.40130 +0.78680266 -0.04621591
P 2.21 H 19.3 G 0.15 U 3
Residuals in seconds of arc
140422 G96 0.0 0.1- 140424 291 0.5- 0.5+ 140519 807 0.2+ 0.2-
140422 G96 0.0 0.2- 140425 H36 0.3+ 0.0 140519 807 0.0 0.4-
140423 033 0.2- 0.2+ 140425 H36 0.4- 0.2- 140522 F51 0.1+ 0.1-
140423 033 0.2+ 0.4+ 140425 291 0.2+ 0.2+ 140522 F51 0.0 0.0
140423 033 0.3+ 0.0 140425 291 0.0 0.0 140522 F51 0.0 0.0
140423 033 0.7+ 0.2+ 140425 291 0.6- 0.3+ 140522 F51 0.1+ 0.2-
140423 H21 0.4- 0.3- 140426 807 0.3+ 0.1- 140526 J04 0.1+ 0.1+
140423 807 0.2+ 0.1+ 140426 807 0.1+ 0.1- 140527 J04 0.1- 0.1-
140423 H21 0.1- 0.2+ 140426 807 0.2- 0.0 140527 F51 0.0 0.1+
140423 807 0.1+ 0.1- 140430 F51 0.1+ 0.2- 140527 F51 0.1+ 0.1+
140423 H21 0.1- 0.1+ 140430 F51 0.1+ 0.2+ 140527 F51 0.0 0.0
140423 807 0.3- 0.1- 140430 F51 0.1+ 0.0 140529 F51 0.1- 0.0
140423 H21 0.1+ 0.2+ 140430 474 0.5+ 0.1- 140529 F51 0.2+ 0.2+
140423 H21 0.1- 0.1+ 140430 474 0.0 0.2- 140622 474 0.9- 0.3+
140424 958 0.8- 0.7- 140430 474 0.5+ 0.4- 140622 474 0.3- 0.4-
140424 958 1.2- 0.1- 140430 474 0.3+ 0.2- 140622 474 0.2- 0.0
140424 958 (1.7- 0.2+) 140505 204 1.1- 0.0 151008 J04 0.1- 0.2-
140424 I93 1.4- 0.6+ 140505 204 0.9- 0.3- 151008 J04 0.7- 0.1-
140424 I93 0.2+ 0.3- 140508 H21 0.4+ 0.5- 151008 J04 0.1+ 0.1+
140424 807 0.2+ 0.1- 140508 H21 0.2+ 0.4- 151009 J04 0.9+ 0.2-
140424 807 0.1+ 0.1- 140508 H21 0.4+ 0.2- 151009 J04 0.1- 0.1+
140424 807 0.0 0.0 140508 H21 0.2+ 0.3- 151009 J04 0.0 0.1+
140424 291 0.3+ 0.3+ 140508 H21 0.1- 0.1-
140424 291 0.2+ 0.4+ 140519 807 0.3+ 0.3-
Ephemeris:
2014 HR4 a,e,i = 1.70, 0.24, 36 q = 1.2841
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2015 09 09 05 06 02.8 +02 11 26 1.2829 1.6339 90.2 38.1 22.4
...
2015 09 24 05 27 56.3 +05 36 21 1.0887 1.5844 98.4 38.8 22.0
...
2015 10 02 05 38 34.5 +07 55 44 0.9861 1.5581 103.3 38.7 21.8
...
2015 10 08 05 45 57.3 +10 00 50 0.9104 1.5384 107.2 38.3 21.6
2015 10 09 05 47 07.6 +10 23 47 0.8979 1.5351 107.9 38.3 21.5
2015 10 10 05 48 16.8 +10 47 25 0.8855 1.5319 108.6 38.2 21.5
...
2015 10 16 05 54 47.0 +13 24 49 0.8125 1.5125 113.0 37.4 21.3
...
2015 10 24 06 02 08.7 +17 45 34 0.7202 1.4870 119.4 35.7 20.9
...
2015 11 08 06 10 04.3 +29 31 53 0.5724 1.4410 132.5 30.4 20.2
A. U. Tomatic (C) Copyright 2015 MPC M.P.E.C. 2015-T40
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