Central Bureau for Astronomical Telegrams
IAUC 3692: 1982 HR; Occn BY (146)
The following International Astronomical Union Circular may be linked-to from your own Web pages, but must not otherwise be redistributed (see these notes on the conditions under which circulars are made available on our WWW site).
Read IAUC 3693
Circular No. 3692
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
Postal Address: Central Bureau for Astronomical Telegrams
Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
TWX 710-320-6842 ASTROGRAM CAM Telephone 617-864-5758
1982 HR
Carlos Torres, Department of Astronomy, University of Chile,
reports his discovery of a fast-moving asteroidal object on exposures
at Cerro el Roble as follows:
1982 UT R. A. (1950) Decl. B
Apr. 24.29999 16 40 25.94 + 0 10 58.3 17
25.30849 16 30 26.20 - 0 04 52.4 17
26.28209 16 21 54.13 - 0 18 48.6 18
Computations by the undersigned suggest that the object is of
Apollo type, although the orbit is very indeterminate. Tentative
orbital elements are: T = 1982 Feb. 22.8 ET, Peri. = 301o.6, Node = 189o.4,
Incl. = 3o.7 (equinox 1950.0), q = 0.759 AU, e = 0.469, from which the
following ephemeris results:
1970 ET R. A. (1950) Decl. Delta r B
Apr. 29 16 02.50 - 0 52.7 0.110 1.105 18.0
May 1 15 51.38 - 1 13.3
3 15 42.21 - 1 31.8 0.136 1.136 18.4
5 15 34.53 - 1 48.8
7 15 28.05 - 2 04.9 0.163 1.166 18.7
9 15 22.51 - 2 20.3
11 15 17.76 - 2 35.3 0.192 1.197 19.1
OCCULTATION BY (146) LUCINA
J. Lecacheux, Meudon Observatory, reports that the predicted
occultation of AGK3 +17 1309 by (146) Lucina on Apr. 18 (cf. BAA
Hbk. for 1982, p. 27) was successfully observed at CFRGA's Calern
station, near Grasse. A full-amplitude extinction of duration 5s.5
was recorded photoelectrically by M. Froeschle and J. F. Mangin
with the 1.5-m reflector; the extinction, which was probably due
to a grazing occultation by the minor planet, began at 20h25m03s.2
UT. At Meudon, a possible secondary occultation was recorded by
J.-E. Arlot, C. Richardson and W. Thuillot on video tape, using an
SIT-vidicon and the 1-m reflector; this full-amplitude extinction,
of duration 0s.6 was centered at 20h23m25s UT. No occultation was
detected at the Bordeaux Observatory, Floirac, where G. Dourneau
was monitoring the star photoelectrically with the 0.6-m reflector.
P. Maley, Houston, Texas, also reports that his visual observations
from the vicinity of Lyons showed no occultation.
1982 April 30 (3692) Brian G. Marsden
Read IAUC 3693
Our Web policy. Index to the CBAT/MPC/ICQ pages.
