PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/01-01:57:40
G01     98.3           29.5                6.9 +/-    0.55      12.1 +/-    0.55  0.110 / 0.250
G07     118.1          51.7                7.5 +/-    0.46       9.3 +/-    0.46  0.120 / 0.220
G08     41.9           14.7                2.1 +/-    1.75       5.2 +/-    1.75  0.030 / 0.050
G11     80.2           42.8                6.8 +/-    0.54       9.4 +/-    0.54  0.040 / 0.050
G13     303.0          32.5                5.4 +/-    0.83       9.0 +/-    0.83  0.070 / 0.120
G17     210.2          45.6                9.7 +/-    1.16      12.9 +/-    1.16  0.080 / 0.110
G19     211.7          21.2                8.5 +/-    0.94      18.2 +/-    0.94  0.050 / 0.050
G28     336.5          61.9                5.9 +/-    0.59       6.5 +/-    0.59  0.040 / 0.060
G30     86.0           76.6                6.4 +/-    0.96       6.6 +/-    0.96  0.080 / 0.110