PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/22-14:43:00
G02     201.5          18.9               10.0 +/-    1.26      22.6 +/-    1.26  0.190 / 0.440
G06     167.0          56.8                9.8 +/-    0.65      11.5 +/-    0.65  0.270 / 0.370
G13     226.2          12.4                8.0 +/-    3.53      21.2 +/-    3.53  0.090 / 0.130
G17     25.2           57.8                7.5 +/-    1.00       8.7 +/-    1.00  0.100 / 0.090
G19     313.5          70.2                7.3 +/-    0.74       7.7 +/-    0.74  0.140 / 0.250
G24     308.3          31.8                6.1 +/-    1.41      10.3 +/-    1.41  0.210 / 0.360
G28     88.7           39.4                7.3 +/-    1.20      10.7 +/-    1.20  0.040 / 0.040
G30     157.9          15.3               11.1 +/-    2.31      27.4 +/-    2.31  0.040 / 0.050