MPEC 1999-U24 : 1998 BP26
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M.P.E.C. 1999-U24 Issued 1999 Oct. 24, 21:30 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.
BMARSDEN@CFA.HARVARD.EDU or GWILLIAMS@CFA.HARVARD.EDU
URL http://cfa-www.harvard.edu/iau/mpc.html ISSN 1523-6714
1998 BP26
Revision to MPEC 1998-C08
Observations:
J98B26P C1999 09 25.42679 02 33 10.18 +45 26 08.1 693
J98B26P FC1999 09 25.42787 02 33 10.14 +45 26 09.7 693
J98B26P FC1999 09 25.42884 02 33 10.12 +45 26 11.5 693
J98B26P FC1999 09 25.43095 02 33 10.07 +45 26 12.6 693
J98B26P C1999 10 23.25193 01 51 27.58 +51 45 59.9 18.1 R 697
J98B26P C1999 10 24.30075 01 49 04.66 +51 52 34.0 17.6 R 697
J98B26P C1999 10 24.30330 01 49 04.31 +51 52 34.9 17.1 R 697
J98B26P C1999 10 24.30667 01 49 03.83 +51 52 35.9 17.5 R 697
Observer details:
693 Catalina Station, Tucson. Observer C. W. Hergenrother. 1.5-m reflector
+ CCD.
697 Kitt Peak, McGraw-Hill. Observers G. J. Garradd, J. Kemp, J. Baldeau,
D. J. Norlander, B. Swift, V. Yuille. 1.3-m f/7.6 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
990925 693 0.04+ 0.02+ 991024 697 0.05+ 0.03+ MPC 33558 -0.090 day
Orbital elements:
1998 BP26
Epoch 1999 Aug. 10.0 TT = JDT 2451400.5 Williams
M 236.30814 (2000.0) P Q
n 0.43566535 Peri. 186.45197 -0.92126910 -0.35135470
a 1.7233257 Node 331.15788 +0.37050078 -0.66242646
e 0.2568532 Incl. 20.22551 +0.11828952 -0.66162002
P 2.26 H 17.7 G 0.15 U 2
Residuals in seconds of arc
980128 566 0.1- 1.3- 980207 046 0.2+ 0.5+ 980303 422 0.5- 0.7+
980128 566 0.2- 0.9- 980207 468 0.3+ 0.5+ 980304 711 0.4- 0.7+
980128 566 0.8+ 1.0- 980207 468 1.0+ 1.1+ 980304 711 0.4- 0.8+
980129 566 0.1+ 0.3- 980209 118 0.1- 0.6+ 980308 860 0.1+ 1.0-
980129 566 0.3+ 0.2- 980209 118 0.2- 0.7+ 980308 860 0.4+ 1.3-
980129 566 0.3+ 0.1- 980210 046 0.9+ 0.0 980308 860 0.2+ 0.9-
980129 046 0.4- 0.2- 980210 046 0.9+ 0.0 980308 422 0.6- 0.3-
980129 046 0.1- 0.2- 980210 046 0.8+ 0.0 980308 422 0.3- 0.5+
980129 046 0.2- 0.1- 980218 422 0.2- 0.7+ 980308 422 0.5+ 0.3-
980130 734 0.3+ 0.2+ 980218 422 0.1- 0.7+ 980313 422 0.1+ 0.4+
980130 734 0.9- 0.5- 980218 422 0.2- 0.5+ 980313 422 0.2- 0.7+
980130 734 0.5+ 0.4- 980219 046 0.8- 0.0 980313 422 0.4- 0.1+
980130 900 0.3- 0.2+ 980219 046 0.7- 0.2+ 980319 422 0.7- 0.3+
980130 900 0.1+ 0.4- 980219 046 0.1- 0.2- 980319 422 0.3- 0.1-
980130 587 0.7+ 0.0 980220 422 0.1+ 0.4+ 980319 422 0.4- 0.1-
980130 587 0.2+ 0.1+ 980220 422 0.7- 0.0 980320 426 0.5- 0.0
980130 587 0.4+ 1.2- 980220 422 0.8- 0.2+ 980320 426 0.6- 0.2-
980131 046 0.9+ 0.0 980220 426 0.8- 0.1- 980320 426 0.8- 0.0
980131 046 0.5+ 0.4- 980220 426 1.0- 0.4- 980324 860 0.1+ 0.9-
980131 046 0.1+ 0.9- 980220 426 0.7- 0.1- 980324 860 0.6- 0.6-
980131 897 0.3+ 0.1- 980220 426 0.8- 0.4- 980324 860 0.5- 0.6-
980131 897 0.1+ 0.2- 980221 557 0.8- 0.4+ 980326 422 0.8+ 0.0
980131 897 0.7- 0.1- 980221 557 0.7- 0.4+ 980326 422 0.3+ 0.1-
980131 360 0.7+ 0.3- 980221 557 0.6- 0.4+ 980326 422 0.2+ 0.1-
980131 360 0.4+ 0.2- 980221 118 0.3- 0.5+ 980328 426 0.7+ 0.6-
980131 360 0.6+ 0.3- 980221 118 0.9- 0.3+ 980328 426 0.7+ 0.4-
980201 118 0.8+ 0.5- 980221 360 0.4- 0.4+ 980328 426 0.8+ 0.5-
980201 118 0.7+ 0.5- 980221 360 0.5- 0.7+ 980403 422 0.5+ 0.0
980201 118 0.4+ 0.4- 980221 360 0.4- 0.8+ 980403 422 0.5+ 0.3+
980201 422 0.6+ 0.1+ 980224 422 0.2+ 0.8+ 980405 426 0.4+ 0.2-
980201 422 0.9+ 0.4- 980224 422 0.1- 0.5+ 980405 426 0.1+ 0.3-
980201 422 0.8+ 0.2- 980225 566 0.3+ 0.5- 980405 426 0.7+ 0.1+
980201 557 0.9+ 0.2- 980225 566 0.6+ 0.6- 980415 860 0.4+ 1.3-
980201 557 0.5+ 1.2+ 980225 566 0.3+ 0.5- 980415 860 (2.2+ 1.7-)
980201 557 1.0+ 0.6- 980225 426 0.4+ 0.0 980420 860 1.1+ 0.4+
980204 118 0.4+ 0.8+ 980225 426 0.3+ 0.1+ 980420 860 1.0+ 0.2-
980204 118 0.5+ 0.1+ 980225 426 0.3+ 0.0 980420 860 0.1- 0.1-
980204 360 0.4+ 0.3- 980302 402 1.1- 1.4- 990925 693 0.1- 1.0-
980204 360 0.6+ 0.4- 980302 402 1.0- 1.4- 990925 693 0.1- 0.6-
980204 360 0.7+ 0.1- 980302 402 1.1- 1.5- 990925 693 0.1+ 0.1+
980206 118 0.1- 0.5+ 980302 360 0.3- 0.7+ 990925 693 0.5+ 1.0-
980206 118 0.2- 0.5+ 980302 360 0.3- 0.5+ 991023 697 0.1+ 0.3-
980206 360 0.0 0.3+ 980302 360 0.5- 0.3+ 991024 697 0.3+ 0.2-
980206 360 0.1- 0.2+ 980303 711 0.6- 0.6+ 991024 697 0.4+ 0.2-
980206 360 0.0 0.0 980303 711 0.8- 0.7+ 991024 697 0.4+ 0.4-
980207 046 0.1+ 0.6+ 980303 422 0.5- 0.4+
980207 046 0.3+ 0.3+ 980303 422 0.7- 0.5+
Ephemeris:
1998 BP26 a,e,i = 1.72, 0.26, 20 q = 1.2807
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
1999 10 19 02 00.68 +51 11.9 0.989 1.855 138.2 21.0 20.0
1999 10 29 01 38.10 +52 12.5 0.945 1.824 140.5 20.3 19.9
1999 11 08 01 14.74 +52 01.9 0.919 1.793 139.6 21.0 19.8
1999 11 18 00 55.16 +50 46.7 0.911 1.760 135.8 23.0 19.8
1999 11 28 00 42.49 +48 49.4 0.918 1.727 130.1 25.9 19.9
1999 12 08 00 37.64 +46 35.6 0.938 1.693 123.4 29.1 20.0
1999 12 18 00 40.19 +44 26.3 0.967 1.659 116.5 32.1 20.1
1999 12 28 00 49.04 +42 33.8 1.002 1.624 109.7 34.7 20.2
2000 01 07 01 03.15 +41 02.4 1.041 1.589 103.4 37.0 20.3
2000 01 17 01 21.67 +39 51.7 1.081 1.555 97.6 38.8 20.4
2000 01 27 01 43.89 +38 57.7 1.121 1.520 92.2 40.3 20.4
2000 02 06 02 09.29 +38 14.6 1.160 1.487 87.3 41.5 20.5
2000 02 16 02 37.44 +37 35.9 1.198 1.455 82.9 42.4 20.6
2000 02 26 03 07.89 +36 54.6 1.234 1.424 78.8 43.0 20.6
2000 03 07 03 40.19 +36 03.8 1.268 1.395 75.1 43.4 20.6
2000 03 17 04 13.88 +34 57.9 1.302 1.368 71.7 43.7 20.6
2000 03 27 04 48.40 +33 32.0 1.334 1.344 68.7 43.7 20.7
2000 04 06 05 23.23 +31 42.9 1.367 1.324 65.9 43.6 20.7
2000 04 16 05 57.90 +29 29.3 1.400 1.307 63.4 43.4 20.7
2000 04 26 06 31.99 +26 51.5 1.433 1.294 61.1 42.9 20.7
Gareth V. Williams (C) Copyright 1999 MPC M.P.E.C. 1999-U24
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