PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/02-14:27:50
G01     41.7           17.4                4.6 +/-    0.82      10.8 +/-    0.82  0.040 / 0.070
G06     174.4          36.4                8.5 +/-    1.54      13.2 +/-    1.54  0.040 / 0.070
G13     238.6          24.3                6.2 +/-    2.20      12.3 +/-    2.20  0.100 / 0.200
G15     273.4          13.0                6.2 +/-    1.09      16.1 +/-    1.09  0.100 / 0.170
G17     342.5          74.4                6.7 +/-    0.84       7.0 +/-    0.84  0.170 / 0.390
G19     271.5          69.2                7.1 +/-    0.68       7.5 +/-    0.68  0.170 / 0.250
G24     317.3          16.3                4.8 +/-    4.55      11.5 +/-    4.55  0.070 / 0.090
G28     60.8           52.6                6.2 +/-    0.68       7.5 +/-    0.68  0.090 / 0.100
G30     153.7          29.8                8.0 +/-    2.04      14.0 +/-    2.04  0.080 / 0.290