[Iaude] MPEC U152: 2015 RA83 [a=1.66,e=0.49,i=27.5,H=20.4]
mpec at mpcdb1.cfa.harvard.edu
mpec at mpcdb1.cfa.harvard.edu
Sat Oct 21 08:03:32 EDT 2017
M.P.E.C. 2017-U152 Issued 2017 Oct. 21, 11:59 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
2015 RA83
Revision to MPEC 2015-S20
Additional Observations:
K15R83A KC2017 10 19.85576122 35 47.627-30 07 43.67 20.7 GUEU152J04
K15R83A KC2017 10 19.86561722 35 46.155-30 07 25.21 20.3 GUEU152J04
K15R83A KC2017 10 19.87547222 35 44.724-30 07 07.55 20.6 GUEU152J04
K15R83A KC2017 10 20.93741422 33 16.568-29 34 30.09 21.1 RtEU152Y28
K15R83A KC2017 10 20.94917822 33 14.872-29 34 08.36 21.6 RtEU152Y28
K15R83A KC2017 10 20.96092622 33 13.208-29 33 46.38 21.5 RtEU152Y28
Observer details:
J04 ESA Optical Ground Station, Tenerife. Observer D. Abreu. Measurers
M. Micheli, D. Koschny, M. Busch, E. Schwab, A. Knoefel. 1.0-m f/4.4
reflector + CCD.
Y28 OASI, Nova Itacuruba. Observers F. Monteiro, E. Rondon, H. Medeiros,
P. Arcoverde, D. Lazzaro, R. Souza, T. Rodrigues. Measurer M. Micheli.
1.0-m f/7 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
171019 J04 0.15- 0.16- 171020 Y28 0.14- 0.17- MPO353742 +0.39 day
Orbital elements:
2015 RA83 Earth MOID = 0.1492 AU
Epoch 2017 Sept. 4.0 TT = JDT 2458000.5 MPC
M 291.93881 (2000.0) P Q
n 0.46224633 Peri. 84.84009 -0.25394825 -0.95105884
a 1.6566105 Node 22.42710 +0.59798561 -0.29745148
e 0.4876744 Incl. 27.48309 +0.76021280 -0.08372396
P 2.13 H 20.4 G 0.15 U 3
Residuals in seconds of arc
150911 F51 0.1- 0.1- 150912 568 0.0 0.2- 151008 H21 0.5+ 1.1-
150911 F51 0.1- 0.0 150912 568 0.0 0.2- 151008 H21 0.8+ 1.0-
150911 F51 0.0 0.1- 150916 H21 0.4- 0.0 151020 H21 0.3- 0.2+
150911 F51 0.0 0.0 150916 H21 0.5- 0.0 151020 H21 0.2- 0.7+
150912 W86 0.0 0.2- 150916 H21 0.8- 0.1+ 151020 H21 0.0 0.7+
150912 W86 0.1+ 0.4- 150916 568 0.3+ 0.2- 151020 H21 0.1- 0.0
150912 W86 0.2+ 0.5- 150916 568 0.1+ 0.2- 151020 H21 0.1- 0.1+
150912 H21 0.0 0.1- 150916 568 0.1+ 0.2- 171019 J04 0.1- 0.3-
150912 291 0.0 0.2+ 150920 291 0.3+ 0.2+ 171019 J04 0.3- 0.4+
150912 291 0.2- 0.3+ 150920 291 0.2+ 0.3- 171019 J04 0.1+ 0.3+
150912 H21 0.0 0.2- 150920 291 0.2- 0.2+ 171020 Y28 0.1+ 0.1-
150912 291 0.3- 0.5+ 151001 291 0.0 0.1+ 171020 Y28 0.1- 0.2-
150912 H21 0.3+ 0.4- 151001 291 0.3+ 0.1+ 171020 Y28 0.2+ 0.0
150912 568 0.1+ 0.2- 151008 H21 0.2+ 0.3-
Ephemeris:
2015 RA83 a,e,i = 1.66, 0.49, 27 q = 0.8487
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2017 09 21 00 04 49.8 -37 52 53 0.7132 1.6303 142.8 21.9 21.8
...
2017 10 06 23 15 29.1 -35 43 22 0.6540 1.5282 134.0 28.1 21.6
...
2017 10 14 22 51 01.4 -32 51 24 0.6409 1.4718 126.5 33.0 21.7
...
2017 10 20 22 35 27.0 -30 03 11 0.6381 1.4286 120.3 37.0 21.7
2017 10 21 22 33 07.9 -29 32 30 0.6381 1.4213 119.3 37.6 21.7
2017 10 22 22 30 53.9 -29 01 10 0.6383 1.4140 118.3 38.3 21.7
...
2017 10 28 22 19 14.9 -25 41 30 0.6418 1.3701 112.0 42.2 21.8
...
2017 11 05 22 08 12.9 -20 53 24 0.6511 1.3108 103.9 47.2 21.8
...
2017 11 20 21 59 00.3 -11 21 52 0.6743 1.1990 90.3 55.5 22.0
A. U. Tomatic (C) Copyright 2017 MPC M.P.E.C. 2017-U152
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