Circular No. 5835

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)

1993 OL

C. S. and E. M. Shoemaker and D. H. Levy report their discovery of a fast-moving asteroidal object on exposures with the 0.46-m Schmidt telescope at Palomar. Measurements by E. M. Shoemaker and D. H. Levy:

1993 UT  α_{2000}  δ_{2000}  Mag.
July 23.29270  20^{h}05^{m}33.^{s}06  −27^{o}58′13′′.5  16
23.32256  20 05 22.75  −27 57 37.3
24.23819  20 00 03.89  −27 35 27.5
24.37656  19 59 13.60  −27 31 59.1
24.43298  19 58 52.90  −27 30 30.8

Orbital elements by B. G. Marsden, Center for Astrophysics, indicate that the object is of Apollo type, but the eccentricity and inclination are particularly uncertain:

T = 1993 Oct. 29.203 TT  ω = 134.^{o}775
e = 0.57228  Ω = 304.008 }2000.0
q = 0.49135 AU  i = 24.635

a = 1.14875 AU n^{o} = 0.800512 P = 1.23 years

1993 TT α_{2000}  δ_{2000}  Δ  r  ϵ  β  V
July 22 20^{h}12.^{m}79 −28^{o}26.^{′}1 0.362 1.376 171.^{o}7 6.^{o}1 15.5
24 20 01.46 −27 41.1 0.348 1.361 171.7  6.2 15.4
26 19 49.40 −26 47.5 0.335 1.346 169.6  7.8 15.3
28 19 36.70 −25 44.7 0.323 1.331 166.1 10.6 15.3
30 19 23.47 −24 32.3 0.313 1.316 161.8 13.9 15.4
Aug. 1 19 09.84 −23 10.0 0.304 1.300 157.1 17.6 15.4
3 18 55.96 −21 38.3 0.296 1.284 152.2 21.6 15.5
5 18 41.99 −19 57.7 0.290 1.268 147.1 25.8 15.5
7 18 28.08 −18 09.4 0.286 1.252 141.8 30.1 15.6
9 18 14.39 −16 14.9 0.283 1.235 136.5 34.4 15.6
11 18 01.06 −14 15.9 0.282 1.218 131.2 38.8 15.7
13 17 48.19 −12 14.2 0.282 1.200 125.9 43.1 15.8
15 17 35.87 −10 11.6 0.283 1.183 120.7 47.4 15.9
17 17 24.16 − 8 09.7 0.285 1.165 115.6 51.6 16.0
19 17 13.07 − 6 09.7 0.288 1.146 110.7 55.7 16.1
21 17 02.61 − 4 12.9 0.293 1.128 106.0 59.6 16.2

1993 July 26 Daniel W. E. Green