Central Bureau for Astronomical Telegrams
IAUC 5280: 1991 JR
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Read IAUC 5281
Circular No. 5280
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
Postal Address: Central Bureau for Astronomical Telegrams
Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Telephone 617-495-7244/7440/7444 (for emergency use only)
TWX 710-320-6842 ASTROGRAM CAM EASYLINK 62794505
MARSDEN or GREEN@CFA.BITNET MARSDEN or GREEN@CFAPS2.SPAN
1991 JR
J. V. Scotti, Lunar and Planetary Laboratory, provides the
following additional positions, measured by him from images by D.
Rabinowitz and himself with the Spacewatch telescope, Kitt Peak:
1991 UT R.A. (1950) Decl. V
May 13.36034 16 21 38.57 - 1 44 15.3 18.1
13.36488 16 21 39.27 - 1 44 47.7
13.37317 16 21 40.54 - 1 45 46.6
16.27742 16 32 32.09 - 8 20 54.5
16.28772 16 32 34.22 - 8 22 31.1
19.28998 16 47 16.18 -17 16 33.4
Improved orbital elements from 20 observations May 8-19:
T = 1991 June 16.046 ET Peri. = 206.965
e = 0.26030 Node = 59.560 1950.0
q = 1.03882 AU Incl. = 10.123
a = 1.40437 AU n = 0.592216 P = 1.66 years
1991 ET R.A. (1950) Decl. Delta r V
June 1 19 46.83 -64 36.1 0.054 1.047 18.1
2 20 16.40 -66 34.4
3 20 47.77 -68 02.5 0.058 1.045 18.4
4 21 19.85 -69 01.7
5 21 51.39 -69 34.9 0.062 1.043 18.7
6 22 21.28 -69 45.9
7 22 48.73 -69 39.3 0.068 1.042 19.0
8 23 13.32 -69 19.5
9 23 34.99 -68 50.3 0.073 1.041 19.3
10 23 53.90 -68 15.0
11 0 10.31 -67 35.9 0.079 1.040 19.5
12 0 24.55 -66 54.9
13 0 36.92 -66 13.1 0.085 1.039 19.7
15 0 57.09 -64 50.6 0.091 1.039 19.9
17 1 12.63 -63 32.5
19 1 24.81 -62 20.4 0.104 1.039 20.3
21 1 34.51 -61 14.7
23 1 42.35 -60 15.0 0.117 1.041 20.5
1991 May 31 (5280) Brian G. Marsden
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