Circular No. 5368
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 or GREEN@CFA.BITNET    MARSDEN or GREEN@CFAPS2.SPAN
 
 
1991 TB1
     E. F. Helin reports the discovery by P. Rose, on films taken
with the 0.46-m Schmidt at Palomar Observatory by K. Lawrence, Rose,
and P. Bambery, of a fast-moving asteroidal object.  The following
positions were measured by Rose:
 
     1991 UT             R.A. (1950) Decl.       Mag.
     Oct. 10.25938   23 41 23.60   + 9 10 13.3   17.0
          10.28837   23 41 15.62   + 9 11 16.8
          11.16927   23 37 22.58   + 9 43 30.9
          11.19306   23 37 16.13   + 9 44 22.5
          11.35087   23 36 32.79   + 9 50 08.1
          12.26892   23 32 28.16   +10 23 49.5
          13.25000   23 28 05.60   +10 59 52.5
          14.22500   23 23 44.42   +11 35 38.8
          14.24792   23 23 38.32   +11 36 28.1
 
     Orbital elements from the above observations by G. V. Williams,
Center for Astrophysics:
 
     T = 1992 Jan. 18.487 ET          Peri. = 102.529
     e = 0.36933                      Node  =   5.618   1950.0
     q = 0.94719 AU                   Incl. =  25.114
       a =  1.50188 AU     n = 0.535489     P =   1.84 years
 
     1991 ET      R.A. (1950) Decl.     Delta      r       V
     Oct. 11    23 38.12    + 9 37.4    0.364    1.345    16.3
          16    23 15.83    +12 40.6
          21    22 54.07    +15 38.4    0.358    1.289    16.6
          26    22 33.78    +18 24.8
          31    22 15.62    +20 57.0    0.373    1.234    17.0
     Nov.  5    21 59.93    +23 15.5
          10    21 46.75    +25 22.6    0.401    1.179    17.3
          15    21 35.89    +27 21.6
          20    21 27.02    +29 15.3    0.431    1.127    17.6
 
 
1991 October 15                                   Daniel W. E. Green