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IAUC 5985: 1993 RO, 1993 RP, 1993 SB, 1993 SC; 1994f

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                                                  Circular No. 5985
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 RO, 1993 RP, 1993 SB, 1993 SC
     B. G. Marsden notes: "Ephemerides for 1993 RO, RP, SB, and SC,
derived from the 'Pluto-like' perihelion orbits on IAUC 5983, will
be published on MPC 23544.  They begin during June 17-July 17, when
the objects should be near morning quadrature.  Recovery of these
mag 23-24 objects (one of which was observed over only a 2-day arc
and two over a 6-day arc) is particularly important from the point
of view of understanding the stability of the outer solar system,
the nature of Pluto and the role of the Kuiper Belt, of which 1992
QB1 (for which there is also an ephemeris on MPC 23544) and 1993 FW
(cf. IAUC 5939) are more obvious members, as perhaps also are 1994
ES2 (cf. MPEC 1994-H03) and 1994 EV3 (cf. MPEC 1994-H04).  If the
true orbits differ significantly from those on IAUC 5983, the
ephemerides could be substantially in error -- by perhaps 15' if
the objects are Neptune 'Trojans' (as is still a possibility,
notably for 1993 RO) and by considerably more if the orbits are
highly eccentric."


COMET TAKAMIZAWA-LEVY (1994f)
     Orbital elements from MPC 23482:

     T = 1994 May  22.542 TT          Peri. =  61.635
                                      Node  = 306.833   2000.0
     q = 1.35932 AU                   Incl. = 132.869

1994 TT     R. A. (2000) Decl.   Delta     r    Elong. Phase    m1
May   8    20 57.82   +29 35.5   1.087   1.376   82.0   46.6    9.3
     10    20 52.58   +32 48.1   1.050   1.372   83.5   47.0    9.2
     12    20 46.37   +36 12.5   1.016   1.368   85.0   47.3    9.1
     14    20 38.93   +39 47.7   0.986   1.365   86.3   47.6    9.0
     16    20 29.96   +43 32.2   0.961   1.363   87.4   47.8    9.0
     18    20 19.06   +47 23.5   0.940   1.361   88.4   48.0    8.9
     20    20 05.67   +51 17.9   0.924   1.360   89.1   48.1    8.9
     22    19 49.09   +55 10.4   0.914   1.359   89.6   48.1    8.8
     24    19 28.41   +58 54.6   0.909   1.359   89.9   48.1    8.8
     26    19 02.55   +62 22.4   0.910   1.360   89.9   48.1    8.8
     28    18 30.41   +65 24.3   0.916   1.362   89.6   48.1    8.9
     30    17 51.44   +67 49.4   0.928   1.364   89.1   48.0    8.9
June  1    17 06.40   +69 27.6   0.945   1.366   88.4   47.9    8.9
      3    16 18.1    +70 13.0   0.968   1.370   87.4   47.7    9.0
      5    15 30.8    +70 06.5   0.994   1.374   86.3   47.5    9.1
      7    14 48.29   +69 16.6   1.025   1.378   85.0   47.2    9.2


1994 May 6                     (5985)            Daniel W. E. Green

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