Table COSTAR-T1:

     Status of COSTAR Mechanism Positions:

                                         Dead Zone      Preferred   Date of 
     Mechanism        Position           (arc sec)      Direction  Last Move
     -----------------------------------------------------------------------
     FOC Focus   |  0.453 mm      |         n/a        |   pos   |  8/ 9/94
     -----------------------------------------------------------------------
     FOC X-Tilt  |  52.80 arc sec | -108.08 to   56.20 |   pos   |  8/ 3/94
     -----------------------------------------------------------------------
     FOC Y-Tilt  | 144.71 arc sec |  923.00 to 1079.20 |   neg   |  1/ 6/94
     -----------------------------------------------------------------------
     FOS Focus   |  -0.10 mm      |         n/a        |   neg   |  2/22/94
     -----------------------------------------------------------------------
     FOS X-Tilt  | -65.45 arc sec |         n/a        |   neg   |  2/22/94
     -----------------------------------------------------------------------
     FOS Y-Tilt  |  51.44 arc sec |         n/a        |   neg   |  2/22/94
     -----------------------------------------------------------------------
     GHRS Focus  |   0.06 mm      |         n/a        |   neg   |  2/15/94
     -----------------------------------------------------------------------
     GHRS X-Tilt |  53.24 arc sec |  998.16 to 1247.70 |   neg   |  2/15/94
     -----------------------------------------------------------------------
     GHRS Y-Tilt | 127.80 arc sec |         n/a        |   neg   |  2/15/94
     -----------------------------------------------------------------------