Monthly FOS Trending Report:  Day 96.092:00:00.00 - 96.119:23:59.99

                                             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  341.41      n/a  26098.09        n/a        n/a
          Red LV          16  178.22      786   8990.87         ~          ~
         Blue LV          16  152.37      802  10968.12         ~          ~
          Red HV          27   95.83     1049   5249.09         ~          ~
         Blue HV          22   87.02     1164   5382.97         ~          ~
        Cal lamp A        27    1.25      931     31.70         ~      500 hours
        Cal lamp B        52    1.63     2443     46.22         ~      500 hours
        Taled/Ion          2    0.11     6386    214.01         ~          ~
        Ent Door         229    n/a     11971     n/a         20000       n/a
        Apt Wheel        151    n/a      6046     n/a       30k (90deg)   n/a
           FGW           221    n/a     10485     n/a       54k (90deg)   n/a
        Pol Wheel          0    n/a      2928     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       63      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     7.97     8.05     8.20
Red side High Voltage (KVolts)        ~      21.47    21.85    22.45      ~
Red side High Voltage Cur (uAmps)     ~      22.75    23.19    23.63      ~
Red  Discriminator Voltage (Volts)    ~       4.08     4.10     4.12      ~
Blue side Logic Supply (Volts)       4.87     4.93     4.97     5.00     5.07
Blue side Quiet Supply (Volts)       7.80     7.95     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    22.75    23.24      ~
Blue  Discriminator Voltage (Volts)   ~       3.98     4.23     4.24      ~
Calibration lamp A voltage (volts)    ~        ¨        ¨        ¨      ~
Calibration lamp A current (mAmps)   8.00      ¨        ¨        ¨    12.00
Calibration lamp B voltage (Volts)    ~        ¨        ¨        ¨     ~
Calibration lamp B current (mAmps)   8.00      ¨        ¨        ¨      12.00


                                           Miscellaneous  Summary

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

Red Tot Accumulated Counts 3.47E+07 8.74E+10 4.03E+08 1.78E+11 1.20E+08 1.00E+15
Blu Tot Accumulated Counts 1.13E+07 8.93E+10 9.54E+07 1.82E+11 1.20E+08 1.00E+15
   Overlite Red SAA        1.48E+07 2.59E+08 2.69E+08 3.07E+09 1.20E+08   n/a
  Overlite Blue SAA        3.97E+08 1.40E+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     1.98E+05    3.41E+04    161.20     23.38       0      16
Blue Dark Counts    1.81E+04    2.52E+04    141.73     18.15       0      26



Limits defined as nominal operating limits, not action or health and safety lim*
~  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.
¨  No data was available for this month because of telemetry gaps.

              Table FOS-T1: April 1996 Cycle and Voltage Summary