Circular No. 5797

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 KA

D. L. Rabinowitz reports a fast-moving object, found with the 0.9-m Spacewatch telescope, Kitt Peak. The May 19 observer was T. Gehrels:

1993 UT  α_{2000}  δ_{2000}  V
May 17.16914  12^{h}02^{m}57.^{s}75  − 1^{o}41′45′′.4  17.7
17.17582  12 03 23.30  − 1 37 59.4
17.19061  12 04 19.91  − 1 29 41.0
17.25053  12 08 12.40  − 0 55 44.8
17.27700  12 09 57.45  − 0 40 37.1
17.30400  12 11 45.92  − 0 25 05.8
17.31011  12 12 10.72  − 0 21 37.3
17.31762  12 12 41.51  − 0 17 17.0
18.15494  13 17 11.10  + 7 57 24.4  17.1
18.16212  13 17 41.41  + 8 01 35.1  17.1
18.18188  13 19 04.36  + 8 13 05.1  17.1
18.35970  13 31 34.29  + 9 52 47.5  17.1
19.19753  14 33 46.74  +16 40 31.2  17.5
19.38936  14 45 17.82  +17 53 33.5  17.4

Orbital elements from the above, perturbations included. Minimum earth distance, 0.0071 AU on May 17.9. Absolute magnitude H ∼ 26:

Epoch = 1993 May 23.0 TT

T = 1993 Apr. 29.8788 TT  ω = 341.^{o}6072
e = 0.198701  Ω = 236.0585 }2000.0
q = 1.007130 AU  i = 6.0979

a = 1.256872 AU n^{o} = 0.6994676 P = 1.409 years

1993 TT α_{2000} δ_{2000} Δ r ϵ β V
May 19.0 14^{h}19.^{m}68 +15^{o}22.^{′}0 0.0076 1.018 139.^{o}3 40.^{o}4 17.0
19.5 14 53.07 +18 38.2 0.0082 1.018 139.4 40.3 17.2
20.0 15 22.48 +21 07.0 0.0089 1.019 138.5 41.2 17.4
20.5 15 47.79 +22 56.1 0.0098 1.019 137.0 42.6 17.7
21.0 16 09.31 +24 14.7 0.011 1.020 135.4 44.2 17.9
21.5 16 27.53 +25 10.9 0.012 1.020 133.8 45.7 18.1
22.0 16 42.96 +25 51.0 0.013 1.021 132.4 47.1 18.4
22.5 16 56.09 +26 19.7 0.014 1.022 131.1 48.3 18.6
23.0 17 07.33 +26 40.1 0.015 1.022 130.0 49.4 18.8
23.5 17 17.00 +26 54.6 0.016 1.023 129.0 50.2 19.0
24.0 17 25.39 +27 04.8 0.017 1.024 128.2 51.0 19.2

1993 May 19 Brian G. Marsden