PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/14-15:13:00
G02     201.2          18.0                9.7 +/-    1.34      22.4 +/-    1.34  0.170 / 0.280
G06     167.9          55.3               10.1 +/-    0.78      12.0 +/-    0.78  0.150 / 0.270
G13     227.1          13.2                9.5 +/-    8.09      24.6 +/-    8.09  0.100 / 0.120
G17     23.3           59.0                7.9 +/-    0.85       9.1 +/-    0.85  0.110 / 0.110
G19     310.0          70.2                7.3 +/-    0.70       7.7 +/-    0.70  0.250 / 0.570
G24     309.3          30.8                8.0 +/-    1.73      13.8 +/-    1.73  0.080 / 0.240
G28     87.4           40.0                7.1 +/-    1.78      10.3 +/-    1.78  0.040 / 0.040
G30     157.7          16.3                9.2 +/-    2.30      22.2 +/-    2.30  0.040 / 0.030