PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/12-14:58:00
G02     204.6          34.2               11.3 +/-    1.78      18.3 +/-    1.78  0.070 / 0.110
G06     153.4          71.4               11.4 +/-    0.77      11.9 +/-    0.77  0.050 / 0.130
G12     307.8          16.3                5.4 +/-    2.43      13.0 +/-    2.43  0.140 / 0.320
G17     33.4           51.2                7.6 +/-    0.55       9.5 +/-    0.55  0.160 / 0.320
G19     8.6            63.3                8.1 +/-    0.54       9.0 +/-    0.54  0.070 / 0.080
G24     296.1          38.3                8.6 +/-    1.80      12.9 +/-    1.80  0.060 / 0.080
G28     101.0          35.5                8.1 +/-    1.17      12.8 +/-    1.17  0.070 / 0.120