SV+------------------------------------------------------------------------+ SV
 20|.......^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^____     | 20
 14|........................................................................| 14
  1|........................................................................|  1
  6|........................................................................|  6
 29|........................................................................| 29
 22|........................................................................| 22
 25|........................................................................| 25
-dn|                                                                        |-dn
+dn|                                                                        |+dn
+10|777777776666666666666666666666666666666666666666666666666666666666666666|+10
Pos|ooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo         |Pos
Clk|                                                                        |Clk
   +---------|---------------------|----------------------|-----------------+
16:55:48.200                                                        17:28:00.400
1996 Feb  5                                                          1996 Feb  5

*********************
QC of RINEX  file(s) : zbb01.obs
input RnxNAV file(s) : zbb01.nav
*********************

Time of start of window : 1996 Feb  5  16:55:48.200
Time of  end  of window : 1996 Feb  5  17:28:00.400
Time line window length : 32.20 minute(s), ticked every 10.0 minute(s)
  antenna WGS 84 (xyz)  : 1257513.5757 -4298379.5910 4526167.5988 (m)
  antenna WGS 84 (geo)  : N  45 deg 29' 43.39"  W  73 deg 41' 34.39"
  antenna WGS 84 (geo)  :   45.495386 deg   286.307115 deg
          WGS 84 height : 81.0507 m
|qc - header| position  : 6367386 m
Observation interval    : 0.1000 seconds
Total satellites w/ obs : 7
NAVSTAR GPS SVs w/o OBS :  2   3   4   5   7   8   9  10  11  12  13  15 
                          16  17  18  19  21  23  24  26  27  28  30  31  32 
NAVSTAR GPS SVs w/o NAV :
Rx tracking capability  : 12 SVs
Poss. # of obs epochs   :  19323
Epochs w/ observations  :  19323
Possible obs >   0.0 deg: 133645
Possible obs >  10.0 deg: 117856
Complete obs >  10.0 deg:      0
 Deleted obs >  10.0 deg: 117856
Moving average MP1      : 0.000000 m
Moving average MP2      : 0.000000 m
Points in MP moving avg : 50
No. of Rx clock offsets : 0
Total Rx clock drift    :  0.000000 ms
Rate of Rx clock drift  :  0.000 ms/hr
Report gap > than       : 10.00 minute(s)
epochs w/ msec clk slip : 0
other msec mp events    : 0 (: 0)   {expect <= 1:50}
IOD signifying a slip   : >400.0 cm/minute
IOD slips <  10.0 deg   :      0
IOD slips >  10.0 deg   :      0
IOD or MP slips <  10.0 :      0
IOD or MP slips >  10.0 :      0
      first epoch    last epoch    hrs   dt  #expt  #have   %   mp1   mp2 o/slps
SUM 96  2  5 16:55 96  2  5 17:28 .5367 .10 117856      0   0  0.00  0.00      0

! Notice ! probably codeless (squaring) rx