Monthly FOS Trending Report:  Day 95.093:00:00 - 95.120:23:59

                                             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  298.80      n/a  22092.80        n/a        n/a
          Red LV           9  124.02      655   6580.00         ~          ~
         Blue LV          10  249.18      674   8648.28         ~          ~
          Red HV          13   47.87      812   3996.27         ~          ~
         Blue HV          19   48.20      927   4482.59         ~          ~
        Cal lamp A        33    1.23      677     25.96         ~      500 hours
        Cal lamp B       144    2.43     1710     27.44         ~      500 hours
        Taled/Ion          2    0.11     6232    207.69         ~          ~
        Ent Door          83    n/a      9608     n/a         20000       n/a
        Apt Wheel        102    n/a      4670     n/a       30k (90deg)   n/a
           FGW           144    n/a      7945     n/a       54k (90deg)   n/a
        Pol Wheel         27    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   3    n/a       53      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     4.97    5.03
Red side Quiet Supply (Volts)        7.80     7.89     7.96     8.05     8.20
Red side High Voltage (KVolts)        ~      21.27    21.85    22.45      ~
Red side High Voltage Cur (uAmps)     ~      22.65    23.19    23.82      ~
Red  Discriminator Voltage (Volts)    ~       4.08     4.11     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     8.05     8.20 
Blue side High Voltage (KVolts)       ~      21.37    22.78    23.43      ~
Blue side High Voltage Cur (uAmps)    ~      21.27    22.76    23.53      ~
Blue  Discriminator Voltage (Volts)   ~       4.00     4.24     4.24      ~
Calibration lamp A voltage (volts)    ~     210.34   210.84   212.32      ~
Calibration lamp A current (mAmps)   8.00    10.41    10.41    10.41    12.00
Calibration lamp B voltage (Volts)    ~     206.37   209.15   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 5.85E+07 9.33E+08 4.03E+08 6.33E+10 1.20E+08 1.00E+15
Blu Tot Accumulated Counts 9.54E+07 4.49E+09 9.54E+07 6.77E+10 1.20E+08 1.00E+15
   Overlite Red SAA        2.17E+07 7.92E+07 2.69E+08 1.60E+09 1.20E+08   n/a
  Overlite Blue SAA        3.75E+07 7.03E+09 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     1.85E+03    3.41E+02    150.32     19.58       0      15
Blue Dark Counts    1.75E+03    2.20E+02    152.48     15.68       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: April 1995 Cycle and Voltage Summary