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  ROYAL OBSERVER CORPS — GROUP 20 (YORK)
  MONITORING POST TRAFFIC SHEET
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  POST NUMBER  : 20/55
  POST NAME    : TUNSTALL
  CLUSTER      : Tunstall (master post 20/M2)
  WATCH DATE   : 12 MAR 1989
  WATCH PERIOD : 09:00 – 10:00 Z

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  INSTRUMENT READINGS
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  GZI FLASH BEARING .................................... 149.6 degrees
  GZI CARD ERROR .......................................  +1.2 degrees

  BPI PEAK OVERPRESSURE ................................  12.4 lb/sq in
  BPI TIME OF PEAK .....................................  09:14:22 Z

  FSM DOSE RATE (start of watch) .......................  0.00 R/hr
  FSM DOSE RATE (end of watch) .........................  0.00 R/hr

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  OBSERVER CERTIFICATION
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  Chief Observer  :  J.R. HOLT
  Observer 2      :  P.A. LUND
  Signed          :  J R Holt     12 MAR 1989

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  GROUP CONTROL USE ONLY
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  Received by    : _______________
  Time received  : _______________  Z
  Bearing plotted: _______________  degrees
  Map reference  : _______________

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  END OF TRAFFIC SHEET
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