MPEC 2017-K01 : 2013 BR45
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M.P.E.C. 2017-K01 Issued 2017 May 16, 11:40 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
2013 BR45
Revision to MPEC 2013-B71
Additional Observations:
K13B45R C2017 05 15.35566 15 48 32.95 -06 08 32.5 20.6 VqEK001G96
K13B45R C2017 05 15.35989 15 48 32.34 -06 08 27.5 20.6 VqEK001G96
K13B45R C2017 05 15.36411 15 48 31.72 -06 08 22.6 qEK001G96
K13B45R C2017 05 15.36834 15 48 31.13 -06 08 17.2 20.2 VqEK001G96
K13B45R C2017 05 15.42274 15 48 23.29 -06 07 10.6 qEK001G96
K13B45R C2017 05 15.42708 15 48 22.62 -06 07 05.2 21.6 VqEK001G96
K13B45R C2017 05 15.42911 15 48 22.38 -06 07 03.2 19.7 VqEK001G96
K13B45R C2017 05 15.43207 15 48 21.88 -06 06 58.6 20.1 VqEK001G96
K13B45R C2017 05 16.25790 15 46 25.61 -05 49 52.0 20.2 VqEK001G96
K13B45R C2017 05 16.25983 15 46 25.34 -05 49 49.9 20.1 VqEK001G96
K13B45R C2017 05 16.26176 15 46 25.06 -05 49 47.6 20.0 VqEK001G96
K13B45R C2017 05 16.26367 15 46 24.78 -05 49 45.0 19.9 VqEK001G96
Observer details:
G96 Mt. Lemmon Survey. Observer G. J. Leonard. Measurers E. J. Christensen,
D. C. Fuls, A. R. Gibbs, A. D. Grauer, J. A. Johnson, R. A. Kowalski,
S. M. Larson, G. J. Leonard, R. G. Matheny, R. L. Seaman, F. C. Shelly.
1.5-m reflector + 10K CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
170515 G96 2.10+ 0.19- 170516 G96 2.12+ 0.18- MPO254840 -1.6 day
Orbital elements:
2013 BR45 Earth MOID = 0.0704 AU
Epoch 2017 Sept. 4.0 TT = JDT 2458000.5 MPC
M 7.12776 (2000.0) P Q
n 0.40473875 Peri. 204.50501 +0.99887123 +0.03116805
a 1.8100318 Node 153.63333 -0.01760196 +0.94377022
e 0.6904200 Incl. 4.62936 -0.04411837 +0.32912964
P 2.44 H 20.1 G 0.15 U 3
Residuals in seconds of arc
130119 691 0.6+ 0.1- 130122 291 0.1- 0.3+ 130216 G96 0.2- 0.1+
130119 691 0.4- 0.5+ 130122 H21 0.2+ 0.1- 130216 G96 0.1- 0.0
130119 691 0.5- 0.1- 130122 H21 0.0 0.2- 130216 G96 0.3- 0.1+
130119 291 0.0 0.4+ 130122 H21 0.1+ 0.0 170515 G96 0.1- 0.4+
130119 291 0.2+ 0.2+ 130131 291 0.0 0.0 170515 G96 0.0 0.2+
130119 291 0.7+ 0.1- 130131 291 0.7+ 0.2- 170515 G96 0.1- 0.1-
130120 H01 0.2- 0.4- 130131 291 0.1- 0.4+ 170515 G96 0.2+ 0.1+
130120 H01 0.2- 0.4- 130203 F51 0.1+ 0.1+ 170515 G96 0.6+ 0.3-
130120 H01 0.2- 0.3- 130203 F51 0.0 0.1+ 170515 G96 0.0 0.3-
130120 H01 0.3- 0.2- 130203 F51 0.0 0.1+ 170515 G96 0.7+ 0.8-
130120 291 0.1+ 0.1+ 130209 568 0.0 0.0 170515 G96 0.4- 0.2+
130120 291 0.1+ 0.0 130209 568 0.0 0.0 170516 G96 0.6- 0.3+
130120 291 0.1- 0.0 130209 568 0.0 0.0 170516 G96 0.3- 0.0
130121 291 0.3+ 0.1- 130210 F51 0.1+ 0.0 170516 G96 0.1- 0.1-
130121 291 0.2+ 0.1- 130210 F51 0.2+ 0.0 170516 G96 0.0 0.1+
130122 291 0.0 0.3- 130210 F51 0.0 0.1+
130122 291 1.3- 0.5- 130216 G96 (1.7- 0.1-)
Ephemeris:
2013 BR45 a,e,i = 1.81, 0.69, 5 q = 0.5603
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2017 04 16 16 21 39.6 -12 45 02 0.9144 1.7991 139.4 21.3 22.2
...
2017 05 01 16 12 29.5 -10 07 28 0.6917 1.6609 155.2 14.8 21.2
...
2017 05 09 16 01 20.6 -08 07 03 0.5895 1.5830 163.2 10.6 20.6
...
2017 05 15 15 49 22.3 -06 15 37 0.5215 1.5226 166.3 9.0 20.2
2017 05 16 15 47 02.5 -05 55 06 0.5110 1.5123 166.3 9.1 20.2
2017 05 17 15 44 36.5 -05 34 00 0.5006 1.5020 166.1 9.3 20.1
...
2017 05 23 15 27 48.5 -03 14 52 0.4435 1.4393 161.1 13.1 19.9
...
2017 05 31 14 59 18.0 +00 23 09 0.3808 1.3529 148.4 23.1 19.8
...
2017 06 15 13 47 58.8 +08 20 25 0.3033 1.1827 116.5 50.2 19.7
(Last issue was M.P.E.C. 2017-J75)
A. U. Tomatic (C) Copyright 2017 MPC M.P.E.C. 2017-K01
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