Monthly FOS Trending Report:  Day 95.338:00:00 - 95.365:23:59

                                             Cycle Summary

                        This Period    Total Since Launch     Design Lifetime
                        Cycles Hours     Cycles  Hours*       Cycles     Hours

           SAFE            0    0.00       35   2193.31        n/a        n/a
           HOLD          n/a  158.62      n/a  24855.58        n/a        n/a
          Red LV           8  324.86      735   8140.87         ~          ~
         Blue LV           7  188.52      749  10204.63         ~          ~
          Red HV          16  288.09      955   4829.94         ~          ~
         Blue HV          24   56.56     1074   5016.41         ~          ~
        Cal lamp A        20    0.24      832     29.62         ~      500 hours
        Cal lamp B        68    1.24     2242     42.36         ~      500 hours
        Taled/Ion          2    0.11     6378    213.57         ~          ~
        Ent Door         316    n/a     11099     n/a         20000       n/a
        Apt Wheel        119    n/a      5515     n/a       30k (90deg)   n/a
           FGW           794    n/a      9741     n/a       54k (90deg)   n/a
        Pol Wheel          0    n/a      2682     n/a      100k(22.5deg)  n/a
 Red anomolous uP resets   0    n/a        1      n/a          n/a        n/a 
 Blue spurious uP resets   0    n/a       62      n/a          n/a        n/a
Blue anomolous uP resets   0    n/a        1      n/a          n/a        n/a


                                    Voltage and Current Summary  (This Period)

                                  Low Limit Minimum  Average  Maximum High Limit

Red side Logic Supply (Volts)        4.83     4.90     4.92     5.00     5.03
Red side Quiet Supply (Volts)        7.80     7.89     7.98     8.05     8.20
Red side High Voltage (KVolts)        ~      21.47    21.80    21.86      ~
Red side High Voltage Cur (uAmps)     ~      22.75    23.30    23.53      ~
Red  Discriminator Voltage (Volts)    ~       4.08     4.09     4.12      ~
Blue side Logic Supply (Volts)       4.87     4.93     4.96     5.00     5.07 
Blue side Quiet Supply (Volts)       7.80     7.84     8.03     8.11     8.20 
Blue side High Voltage (KVolts)       ~      21.37    22.76    22.84      ~
Blue side High Voltage Cur (uAmps)    ~      21.08    22.70    23.24      ~
Blue  Discriminator Voltage (Volts)   ~       4.00     4.23     4.24      ~
Calibration lamp A voltage (volts)    ~     208.35   210.76   212.32      ~
Calibration lamp A current (mAmps)   8.00    10.41    10.43    10.47    12.00
Calibration lamp B voltage (Volts)    ~     206.37   208.86   212.32      ~
Calibration lamp B current (mAmps)   8.00    10.41    10.41    10.41    12.00


                                           Miscellaneous  Summary

                              This Period      Since Launch^
                             Max     Total     Max     Total   Max Lim Total Lim

Red Tot Accumulated Counts 3.04E+07 3.39E+08 4.03E+08 7.71E+10 1.20E+08 1.00E+15
Blu Tot Accumulated Counts 3.20E+07 6.34E+08 9.54E+07 9.06E+10 1.20E+08 1.00E+15
   Overlite Red SAA        3.30E+06 3.07E+07 2.69E+08 2.75E+09 1.20E+08   n/a
  Overlite Blue SAA        3.20E+07 5.60E+07 3.75E+07 1.03E+14 1.20E+08   n/a


                       Detector Dark Count Summary (This Period)

                                                                New Bad Tot Bad 
                   Max (Cnts)  Avg (Cnts)  Std. Dev. Time (hrs)  Chnls   Chnls
Red Dark Counts     1.89E+03    3.72E+02    134.78    138.15       0      15
Blue Dark Counts    1.81E+03    2.68E+02    165.99     11.42       0      26



Limits defined as nominal operating limits, not action or health and safety limits.
~  Engineering Data Analysis not fully defined at this time.: n/a Not Applicable
*  Total hours since Nov 1,1990 only
^  Total since April 1, 1991 only. 


              Table FOS-T1: December 1995 Cycle and Voltage Summary