MPEC 1998-B31: 1998 BR26
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M.P.E.C. 1998-B31 Issued 1998 Jan. 31, 16:17 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
1998 BR26
Observations:
J98B26R* C1998 01 30.34974 08 57 50.86 +17 40 10.9 19.3 V 691
J98B26R C1998 01 30.37183 08 58 16.04 +17 50 11.4 19.1 V 691
J98B26R C1998 01 30.37852 08 58 23.81 +17 53 13.9 18.9 V 691
J98B26R C1998 01 30.38368 08 58 29.81 +17 55 36.5 19.1 V 691
J98B26R C1998 01 30.42137 08 59 29.01 +18 14 18.5 568
J98B26R C1998 01 30.42171 08 59 29.41 +18 14 27.7 568
J98B26R C1998 01 30.42353 08 59 31.56 +18 15 19.6 568
J98B26R C1998 01 30.42388 08 59 31.92 +18 15 28.1 568
J98B26R C1998 01 30.44479 08 59 56.59 +18 25 21.5 568
J98B26R C1998 01 30.44528 08 59 57.16 +18 25 35.2 568
J98B26R C1998 01 30.60476 09 03 19.19 +19 43 17.5 568
J98B26R C1998 01 31.31186 09 25 53.39 +26 55 12.2 568
J98B26R C1998 01 31.31683 09 25 45.31 +26 58 32.1 18.0 V 691
J98B26R C1998 01 31.32236 09 25 57.48 +27 02 32.5 18.3 V 691
J98B26R C1998 01 31.32673 09 26 07.12 +27 05 44.7 18.0 V 691
J98B26R C1998 01 31.46963 09 31 44.75 +28 52 37.0 17.9 V 691
J98B26R C1998 01 31.47418 09 31 56.25 +28 56 05.8 17.9 V 691
J98B26R C1998 01 31.57520 09 36 37.67 +30 18 37.9 568
J98B26R C1998 01 31.63799 09 39 35.36 +31 09 42.4 568
Observer details:
568 Mauna Kea. Observer D. J. Tholen. Measurer R. J. Whiteley. 2.2-m
University of Hawaii reflector + CCD.
691 Steward Observatory, Kitt Peak. Observer J. V. Scotti. 0.9-m Spacewatch
telescope.
Orbital elements:
1998 BR26
Epoch 1997 Dec. 18.0 TT = JDT 2450800.5 Williams
M 318.67046 (2000.0) P Q
n 0.46873450 Peri. 61.56894 -0.96338928 +0.21327736
a 1.6412879 Node 130.25756 -0.25055242 -0.93185225
e 0.4891455 Incl. 12.29142 +0.09541792 -0.29353732
P 2.10 H 26.0 G 0.15 U 7
From 19 observations 1998 Jan. 30-31, mean residual 0".77.
Ephemeris:
1998 BR26 a,e,i = 1.64, 0.49, 12 q = 0.8385
Date TT R. A. (2000) Decl. Delta r Elong. Phase V
1998 01 27 08 22.69 +04 06.3 0.052 1.035 165.1 14.1 20.5
1998 01 28 08 28.86 +06 34.6 0.044 1.028 167.9 11.6 20.0
1998 01 29 08 37.69 +10 04.0 0.037 1.021 171.8 7.9 19.4
1998 01 30 08 51.27 +15 15.4 0.030 1.015 177.5 2.5 18.7
1998 01 31 09 14.52 +23 26.3 0.023 1.008 172.3 7.5 18.4
1998 02 01 10 01.59 +36 37.6 0.018 1.002 156.0 23.6 18.4
1998 02 02 11 58.77 +53 33.4 0.015 0.995 129.9 49.5 18.7
1998 02 03 15 30.47 +56 49.5 0.016 0.989 100.6 78.5 19.7
1998 02 04 17 31.19 +46 23.7 0.020 0.982 79.7 99.2 21.1
1998 02 05 18 19.52 +37 30.3 0.026 0.976 67.4 111.2 22.3
1998 02 06 18 43.33 +31 35.5 0.033 0.970 60.1 118.2 23.2
Gareth V. Williams (C) Copyright 1998 MPC M.P.E.C. 1998-B31
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