PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/08-13:43:10
G01     106.4          25.6                9.9 +/-    1.73      19.1 +/-    1.73  0.200 / 0.300
G07     109.0          54.7                9.4 +/-    0.53      11.3 +/-    0.53  0.250 / 0.360
G08     41.7           18.2                8.7 +/-    1.11      20.0 +/-    1.11  0.110 / 0.180
G09     173.3          11.6               10.0 +/-    2.40      26.8 +/-    2.40  0.070 / 0.160
G11     85.8           40.6                9.9 +/-    0.98      14.2 +/-    0.98  0.020 / 0.020
G13     310.8          27.1                6.5 +/-    1.81      12.0 +/-    1.81  0.030 / 0.020
G17     205.3          40.7                9.5 +/-    0.61      13.6 +/-    0.61  0.030 / 0.030
G19     208.9          14.9                6.1 +/-    4.25      15.3 +/-    4.25  0.020 / 0.030
G28     318.9          60.9                6.5 +/-    0.63       7.4 +/-    0.63  0.040 / 0.060
G30     14.4           77.1                8.2 +/-    0.56       8.4 +/-    0.56  0.050 / 0.060