Monthly FOS Trending Report:  Day 95.121:00:00 - 95.148:23:59

                                             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  345.79      n/a  22438.59        n/a        n/a
          Red LV          11  148.13      666   6728.13         ~          ~
         Blue LV          10  178.08      684   8826.36         ~          ~
          Red HV          14   89.58      826   4085.85         ~          ~
         Blue HV          16   57.71      943   4540.30         ~          ~
        Cal lamp A        11    1.05      688     27.01         ~      500 hours
        Cal lamp B       111    2.10     1821     29.54         ~      500 hours
        Taled/Ion          2    0.11     6234    207.80         ~          ~
        Ent Door         159    n/a      9767     n/a         20000       n/a
        Apt Wheel         77    n/a      4747     n/a       30k (90deg)   n/a
           FGW           109    n/a      8054     n/a       54k (90deg)   n/a
        Pol Wheel          0    n/a      2559     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   2    n/a       55      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     7.84     7.99     8.05     8.20
Red side High Voltage (KVolts)        ~      21.27    21.85    22.45      ~
Red side High Voltage Cur (uAmps)     ~      22.75    23.21    23.53      ~
Red  Discriminator Voltage (Volts)    ~       4.08     4.10     4.12      ~
Blue side Logic Supply (Volts)       4.87     4.93     4.96     5.00     5.07 
Blue side Quiet Supply (Volts)       7.80     7.95     8.02     8.05     8.20 
Blue side High Voltage (KVolts)       ~      21.37    22.76    23.43      ~
Blue side High Voltage Cur (uAmps)    ~      21.27    22.71    23.43      ~
Blue  Discriminator Voltage (Volts)   ~       4.00     4.23     4.24      ~
Calibration lamp A voltage (volts)    ~     208.35   210.66   212.32      ~
Calibration lamp A current (mAmps)   8.00    10.41    10.46    10.47    12.00
Calibration lamp B voltage (Volts)    ~     206.37   208.96   212.32      ~
Calibration lamp B current (mAmps)   8.00    10.41    10.41    10.47    12.00


                                           Miscellaneous  Summary

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

Red Tot Accumulated Counts 4.03E+07 3.59E+09 4.03E+08 6.69E+10 1.20E+08 1.00E+15
Blu Tot Accumulated Counts 3.96E+07 2.25E+09 9.54E+07 7.00E+10 1.20E+08 1.00E+15
   Overlite Red SAA        2.79E+07 3.42E+07 2.69E+08 1.63E+09 1.20E+08   n/a
  Overlite Blue SAA        9.96E+05 8.77E+06 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     1.92E+03    3.39E+02    166.55     27.78       0      15
Blue Dark Counts    1.98E+03    2.17E+02    131.87     20.00       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: May 1995 Cycle and Voltage Summary