MPEC 2004-P05 : 2003 BC21
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M.P.E.C. 2004-P05 Issued 2004 Aug. 2, 08:29 UT
The Minor Planet Electronic Circulars contain information on unusual
minor planets and routine data on comets. They are published
on behalf of Commission 20 of the International Astronomical Union by the
Minor Planet Center, Smithsonian Astrophysical Observatory,
Cambridge, MA 02138, U.S.A.
Supported in part by the Brinson Foundation
Prepared using the Tamkin Foundation Computer Network
MPC@CFA.HARVARD.EDU
URL http://cfa-www.harvard.edu/iau/mpc.html ISSN 1523-6714
2003 BC21
Revision to MPEC 2003-B39
Additional Observations:
K03B21C C2004 05 13.24333 13 48 55.78 -18 44 28.1 22.1 V EP005291
K03B21C C2004 05 13.24732 13 48 55.58 -18 44 27.0 22.4 V EP005291
K03B21C C2004 05 13.25127 13 48 55.42 -18 44 25.6 22.9 V EP005291
K03B21C 2C2004 07 21.29657613 37 56.213-15 51 08.14 21.9 R EP005568
K03B21C 2C2004 07 21.30184613 37 56.346-15 51 08.27 22.3 R EP005568
K03B21C 2C2004 07 22.27469113 38 19.998-15 51 49.77 22.7 R EP005568
K03B21C 2C2004 07 22.28060913 38 20.145-15 51 50.10 22.2 R EP005568
Observer details:
291 LPL/Spacewatch II. Observer A. E. Gleason. 1.8-m f/2.7 reflector + CCD.
568 Mauna Kea. Observer F. Bernardi. Measurers F. Bernardi, D. J. Tholen.
2.2-m University of Hawaii reflector + CCD.
First and last observations above in comparison with prediction:
Residuals in seconds of arc, reference and Delta-T
040513 291 42.4- 14.6+ 040722 568 33.1- 10.3+ MPO 48317 +0.0068 day
Orbital elements:
2003 BC21
Epoch 2004 July 14.0 TT = JDT 2453200.5 MPC
M 170.96758 (2000.0) P Q
n 0.23510276 Peri. 113.52660 +0.68749484 -0.72086424
a 2.5999455 Node 292.73762 +0.62672468 +0.65004161
e 0.5066940 Incl. 5.46159 +0.36683378 +0.24041766
P 4.19 H 16.0 G 0.15 U 3
Residuals in seconds of arc
030127 608 0.4- 0.3+ 030202 246 0.1+ 0.2- 030306 699 0.0 0.1+
030127 608 0.4- 0.0 030202 246 0.5+ 0.2+ 030306 474 0.2- 0.2-
030127 608 0.4- 0.3+ 030202 246 0.1+ 0.2- 030306 474 0.2- 0.4-
030128 651 0.0 0.0 030202 246 0.1- 0.1- 030307 704 0.1- 0.4-
030128 651 0.4- 0.3- 030202 246 0.2+ 0.3+ 030307 711 0.3- 0.3+
030128 651 0.2- 0.1- 030204 446 0.0 0.1+ 030307 704 0.6- 0.0
030128 673 0.0 0.6+ 030204 446 0.6+ 0.8- 030307 711 0.9- 0.2+
030128 673 0.2+ 0.6+ 030204 446 0.4- 1.1- 030307 704 0.4- 0.7+
030128 673 0.7- 0.7+ 030204 446 0.7- 0.8- 030307 711 0.1- 0.5+
030128 704 1.1+ 0.4- 030204 446 0.3- 0.5- 030309 704 0.4+ 0.6+
030128 704 0.3+ 0.0 030206 670 1.6+ 0.0 030309 704 0.1- 0.7-
030128 926 0.1- 0.1- 030206 670 0.3+ 0.5+ 030309 704 0.4+ 0.7-
030128 704 1.7+ 0.2+ 030208 608 0.3- 1.1+ 030419 413 0.4- 0.2+
030128 926 0.3- 0.3+ 030208 608 0.3+ 0.3+ 030419 413 0.1- 0.9+
030128 926 0.5- 0.3- 030208 608 0.2- 0.8+ 030420 540 0.2+ 0.1-
030129 673 0.2- 0.4+ 030220 649 0.4- 0.1+ 030420 540 0.3+ 0.4-
030129 673 0.1- 0.4+ 030220 649 0.4- 0.1+ 040513 291 0.3+ 0.1+
030129 673 0.1- 0.5+ 030220 649 0.5+ 0.6- 040513 291 0.1+ 0.0
030129 413 0.6- 0.2+ 030222 176 0.5+ 0.7- 040513 291 0.3+ 0.2+
030129 413 0.4- 0.1- 030222 176 0.3+ 0.6- 040721 568 0.0 0.0
030129 413 0.4- 0.0 030222 176 0.2+ 0.4- 040721 568 0.1+ 0.1+
030201 704 0.2+ 0.5- 030222 176 0.1+ 0.3- 040722 568 0.1- 0.0
030201 704 0.2+ 0.2+ 030306 699 0.2+ 0.5+ 040722 568 0.0 0.1-
030201 704 0.2- 1.3- 030306 699 0.0 0.2+
030202 246 0.1+ 0.5+ 030306 699 0.9+ 0.3-
Ephemeris:
2003 BC21 a,e,i = 2.60, 0.51, 5 q = 1.2826
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
2004 08 03 13 44.02 -16 06.1 3.980 3.916 79.0 14.7 22.8
2004 08 13 13 50.10 -16 26.1 4.129 3.917 70.9 14.2 22.8
2004 08 23 13 57.19 -16 52.2 4.270 3.917 63.1 13.3 22.9
Kyle E. Smalley (C) Copyright 2004 MPC M.P.E.C. 2004-P05
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