PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/14-15:28:00
G01     44.5           20.2                7.4 +/-    0.96      16.1 +/-    0.96  0.170 / 0.340
G06     176.2          33.0               12.1 +/-    0.89      20.0 +/-    0.89  0.150 / 0.300
G13     245.0          25.9               12.0 +/-    1.86      23.0 +/-    1.86  0.120 / 0.210
G15     279.0          14.0                9.1 +/-    1.11      23.3 +/-    1.11  0.100 / 0.220
G17     356.2          73.4               11.0 +/-    0.88      11.4 +/-    0.88  0.060 / 0.080
G19     265.3          67.8               10.3 +/-    0.78      11.1 +/-    0.78  0.080 / 0.070
G24     318.7          12.9                7.3 +/-    2.06      19.0 +/-    2.06  0.070 / 0.180
G28     64.1           49.4                9.5 +/-    0.70      12.0 +/-    0.70  0.070 / 0.150
G30     153.0          35.5                9.4 +/-    1.67      14.8 +/-    1.67  0.040 / 0.030