PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/29-17:43:10
G05     46.8           23.1                8.0 +/-    1.65      16.3 +/-    1.65  0.050 / 0.080
G13     80.5           35.3               14.0 +/-    1.09      22.1 +/-    1.09  0.070 / 0.070
G15     130.4          49.4               12.9 +/-    0.94      16.4 +/-    0.94  0.170 / 0.290
G16     317.4          11.0               -1.2 +/-   17.89      -3.3 +/-   17.89  0.200 / 0.460
G20     244.8          34.8               11.2 +/-    1.95      17.8 +/-    1.95  0.080 / 0.130
G21     308.9          43.3               10.9 +/-    0.95      15.0 +/-    0.95  0.090 / 0.120
G25     202.3          15.5               12.2 +/-    1.49      30.0 +/-    1.49  0.040 / 0.050
G26     292.2          20.2                7.8 +/-    1.80      17.0 +/-    1.80  0.040 / 0.040
G29     146.8          78.7               11.3 +/-    0.60      11.5 +/-    0.60  0.050 / 0.220