Central Bureau for Astronomical Telegrams
IAUC 5384: 1991 VB
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Read IAUC 5385
Circular No. 5384
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 VB
E. Helin reports her discovery of a fast-moving asteroidal
object on Palomar 0.46-m Schmidt films taken by K. Lawrence, P. Rose,
C. Brewer, and herself. The following positions were measured by
Rose and Lawrence:
1991 UT R.A. (1950) Decl. Mag.
Nov. 1.32639 1 47 08.66 +28 02 38.2 16.5
1.35191 1 47 09.69 +28 02 18.7
2.27292 1 47 52.94 +27 48 24.2
2.30104 1 47 54.16 +27 47 57.2
2.43281 1 47 59.10 +27 45 52.8
3.34497 1 48 42.85 +27 31 44.8
5.22049 1 50 14.67 +27 01 52.7
5.43455 1 50 23.38 +26 58 18.4
6.42969 1 51 12.95 +26 42 03.1 16.5
Orbital elements by B. G. Marsden from the above observations:
T = 1991 Oct. 25.683 ET Peri. = 136.447
e = 0.41783 Node = 255.383 1950.0
q = 1.32786 AU Incl. = 6.575
a = 2.28086 AU n = 0.286125 P = 3.44 years
1991 ET R.A. (1950) Decl. Delta r V
Oct. 31 1 46.15 +28 22.2 0.346 1.329 15.5
Nov. 5 1 50.05 +27 05.5
10 1 54.36 +25 42.2 0.357 1.336 15.6
15 1 59.16 +24 16.6
20 2 04.49 +22 52.6 0.382 1.350 15.9
25 2 10.36 +21 33.4
30 2 16.73 +20 21.3 0.420 1.370 16.3
Dec. 5 2 23.59 +19 18.0
10 2 30.91 +18 24.4 0.473 1.397 16.7
15 2 38.66 +17 40.8
20 2 46.80 +17 06.8 0.539 1.428 17.2
25 2 55.26 +16 41.6
30 3 04.00 +16 24.3 0.617 1.464 17.6
1991 November 12 (5384) Daniel W. E. Green
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