Central Bureau for Astronomical Telegrams
IAUC 5368: 1991 TB1
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Circular No. 5368
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 TB1
E. F. Helin reports the discovery by P. Rose, on films taken
with the 0.46-m Schmidt at Palomar Observatory by K. Lawrence, Rose,
and P. Bambery, of a fast-moving asteroidal object. The following
positions were measured by Rose:
1991 UT R.A. (1950) Decl. Mag.
Oct. 10.25938 23 41 23.60 + 9 10 13.3 17.0
10.28837 23 41 15.62 + 9 11 16.8
11.16927 23 37 22.58 + 9 43 30.9
11.19306 23 37 16.13 + 9 44 22.5
11.35087 23 36 32.79 + 9 50 08.1
12.26892 23 32 28.16 +10 23 49.5
13.25000 23 28 05.60 +10 59 52.5
14.22500 23 23 44.42 +11 35 38.8
14.24792 23 23 38.32 +11 36 28.1
Orbital elements from the above observations by G. V. Williams,
Center for Astrophysics:
T = 1992 Jan. 18.487 ET Peri. = 102.529
e = 0.36933 Node = 5.618 1950.0
q = 0.94719 AU Incl. = 25.114
a = 1.50188 AU n = 0.535489 P = 1.84 years
1991 ET R.A. (1950) Decl. Delta r V
Oct. 11 23 38.12 + 9 37.4 0.364 1.345 16.3
16 23 15.83 +12 40.6
21 22 54.07 +15 38.4 0.358 1.289 16.6
26 22 33.78 +18 24.8
31 22 15.62 +20 57.0 0.373 1.234 17.0
Nov. 5 21 59.93 +23 15.5
10 21 46.75 +25 22.6 0.401 1.179 17.3
15 21 35.89 +27 21.6
20 21 27.02 +29 15.3 0.431 1.127 17.6
1991 October 15 (5368) Daniel W. E. Green
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