Circular No. 5858

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@CFA or GREEN@CFA (.SPAN, .BITNET or .HARVARD.EDU)

1974 MA = 1993 OL R. Sinnott, Sky and Telescope, points out that 1993 OL (cf. IAUC

5853) is identical with 1974 MA (cf. IAUC 2705). The following linked orbit is by the undersigned.

Epoch = 1993 Aug. 1.0 TT

T = 1993 Oct. 14.6199 TT  ω = 126.^{o}6339
e = 0.762742  Ω = 302.6582 }2000.0
q = 0.423757 AU  i = 37.9209

a = 1.786060 AU n^{o} = 0.4129144 P = 2.387 years

1993 QP

CCD astrometry, improved orbital elements and ephemeris:

1993 UT α_{2000} δ_{2000} Observer
Aug. 29.01405 23^{h}10^{m}41.^{s}50 +21^{o}54′55′′.1 Tombelli
29.04761 23 10 43.19 +21 56 07.9  _{”}
Sept. 4.90017 23 17 57.76 +25 45 19.4 Sicoli
4.92083 23 17 58.88 +25 45 57.9  _{”}

M. Tombelli, S. Bartolini and A. Boattini (Montelupo). P. Sicoli, A. Testa, M. Cavagna and E. Galliani (Sormano).

T = 1993 Sept. 2.8379 TT  ω = 46.^{o}9639
e = 0.454341  Ω = 297.1891 }2000.0
q = 1.219298 AU  i = 7.0778

a = 2.234541 AU n^{o} = 0.2950677 P = 3.340 years

1993TT α_{2000} δ_{2000} Δ r ϵ β V
Sept. 20 23^{h}32.^{m}54 +31^{o}02.^{′}6 0.261 1.232 147.^{o}6 25.^{o}9 16.2
25 23 37.33 +31 49.3 0.271 1.241 148.2 25.2 16.3
30 23 42.27 +32 10.4 0.283 1.252 148.9 24.4 16.4
Oct. 5 23 47.42 +32 09.1 0.297 1.265 149.5 23.6 16.5
10 23 52.80 +31 48.8 0.313 1.279 150.1 22.9 16.6
15 23 58.48 +31 13.3 0.331 1.295 150.3 22.4 16.7
20 0 04.51 +30 26.9 0.353 1.313 150.2 22.2 16.9

1993 FW Corrigendum. On IAUC 5856 the May 17 observations should be cred-

ited to observer Byun and the May 18 observation to Hainaut.

1993 September 8 Brian G. Marsden