PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/08-21:12:30
G07     336.5          59.2               10.3 +/-    0.36      11.8 +/-    0.36  0.100 / 0.160
G08     99.4           53.3               12.0 +/-    1.49      14.6 +/-    1.49  0.180 / 0.190
G09     190.9          71.6               12.0 +/-    0.57      12.6 +/-    0.57  0.190 / 0.130
G11     146.5          14.0               12.1 +/-    2.52      30.8 +/-    2.52  0.360 / 0.250
G23     155.6          36.5                9.9 +/-    1.21      15.2 +/-    1.21  0.040 / 0.040
G27     52.0           29.6                9.6 +/-    1.65      16.9 +/-    1.65  0.080 / 0.050
G28     239.9          32.3               10.8 +/-    2.33      18.1 +/-    2.33  0.170 / 0.440
G30     306.4          39.9                9.6 +/-    1.56      14.0 +/-    1.56  0.400 / 0.570