[Iaude] MPEC B74: 2015 BG4 [a=1.59,e=0.34,i=1.2,H=26.3]
mpec at si.edu
mpec at si.edu
Fri Jan 27 10:53:22 EST 2017
M.P.E.C. 2017-B74 Issued 2017 Jan. 27, 15:50 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 BG4
Revision to MPEC 2015-B70
Additional Observations:
K15B04G C2017 01 26.44933 07 51 32.558+13 17 16.32 21.5 wLEB074F51
K15B04G C2017 01 26.47058 07 51 40.898+13 17 18.99 21.3 wLEB074F51
K15B04G C2017 01 26.48119 07 51 45.074+13 17 20.13 21.2 wLEB074F51
K15B04G C2017 01 27.29634 07 57 45.95 +13 19 20.0 21.5 RoEB074926
K15B04G C2017 01 27.30284 07 57 48.44 +13 19 20.4 21.5 RoEB074926
K15B04G C2017 01 27.30933 07 57 50.94 +13 19 21.5 21.3 RoEB074926
Observer details:
926 Tenagra II Observatory. Observers M. Schwartz, P. R. Holvorcem. Measurer
M. Schwartz. 0.81-m f/7 Ritchey-Chretien + 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.
First and last observations above in comparison with prediction:
Residuals in seconds of arc (or integer in degrees), reference and Delta-T
170126 F51 18- 4+ 170127 926 18- 4+ MPO369256 +1.2 day
Orbital elements:
2015 BG4 Earth MOID = 0.0621 AU
Epoch 2017 Feb. 16.0 TT = JDT 2457800.5 MPC
M 15.93178 (2000.0) P Q
n 0.49169974 Peri. 322.73103 -0.39443356 -0.91887038
a 1.5897765 Node 150.49581 +0.84789804 -0.36810774
e 0.3431652 Incl. 1.15999 +0.35424720 -0.14203492
P 2.00 H 26.3 G 0.15 U 2
Residuals in seconds of arc
150118 G96 0.1- 0.1- 150119 G96 0.8- 0.3+ 150212 J04 0.2- 0.0
150118 G96 0.0 0.0 150119 G96 1.2+ 0.3+ 150212 J04 0.3- 0.2-
150118 G96 0.5+ 0.2- 150119 G96 0.5+ 0.1- 150213 H21 0.0 0.0
150118 G96 0.1- 0.1+ 150119 H01 0.2+ 0.0 150213 H21 0.0 0.3+
150118 H01 0.0 0.1- 150119 H01 0.0 0.0 150213 H21 0.4- 0.7-
150118 H01 0.1+ 0.0 150119 H01 0.0 0.0 150215 H21 0.5+ 0.0
150118 H01 0.0 0.1+ 150119 H01 0.0 0.0 150215 H21 0.5+ 0.2-
150118 G96 0.3+ 0.3- 150119 H21 0.1+ 0.3+ 150215 H21 0.2+ 0.5-
150118 H01 0.3+ 0.2+ 150119 H21 0.0 0.3+ 150220 H21 0.0 0.0
150118 G96 0.8- 0.1+ 150119 H21 0.1+ 0.3- 150220 H21 0.6+ 0.7+
150118 G96 0.3+ 0.3- 150124 474 0.7+ 0.4+ 150220 H21 0.2- 0.6-
150118 G96 0.0 0.1- 150124 474 0.1+ 0.1+ 170126 F51 0.0 0.2+
150118 033 1.0- 0.5- 150124 474 0.1- 0.4- 170126 F51 0.0 0.0
150118 033 (1.9+ 0.4-) 150209 705 0.4- 0.5+ 170126 F51 0.1- 0.1-
150119 033 1.1- 0.3- 150209 705 0.2- 0.3+ 170127 926 0.7+ 0.4+
150119 033 (1.8+ 0.2-) 150209 705 0.3- 0.5+ 170127 926 0.3+ 0.2-
150119 G96 0.0 0.1- 150212 J04 0.1- 0.0 170127 926 0.0 0.0
Ephemeris:
2015 BG4 a,e,i = 1.59, 0.34, 1 q = 1.0442
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2016 12 28 04 45 34.3 +10 02 52 0.08378 1.0583 152.2 25.7 22.2
...
2017 01 12 06 02 29.3 +11 38 50 0.06640 1.0444 156.0 22.6 21.6
...
2017 01 20 07 02 04.4 +12 44 58 0.06432 1.0455 162.5 16.4 21.3
...
2017 01 26 07 48 14.4 +13 16 06 0.06700 1.0502 167.8 11.4 21.2
2017 01 27 07 55 36.6 +13 19 11 0.06781 1.0513 168.7 10.6 21.2
2017 01 28 08 02 49.7 +13 21 42 0.06872 1.0525 169.4 9.9 21.2
...
2017 02 03 08 42 13.8 +13 26 00 0.07628 1.0615 173.4 6.1 21.3
...
2017 02 11 09 22 55.4 +13 12 54 0.09133 1.0781 176.2 3.5 21.6
...
2017 02 26 10 08 46.9 +12 31 19 0.1329 1.1220 172.3 6.8 22.7
A. U. Tomatic (C) Copyright 2017 MPC M.P.E.C. 2017-B74
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