PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/27-16:27:40
G02     3.0            72.2                8.7 +/-    0.73       9.1 +/-    0.73  0.300 / 0.310
G05     160.2          43.3               11.9 +/-    1.65      16.4 +/-    1.65  0.140 / 0.250
G06     44.8           29.8                8.7 +/-    0.95      15.3 +/-    0.95  0.110 / 0.170
G12     276.4          79.5               10.4 +/-    0.61      10.5 +/-    0.61  0.100 / 0.210
G19     84.9           19.1                8.6 +/-    2.29      19.3 +/-    2.29  0.130 / 0.110
G24     221.6          15.5               13.8 +/-    2.60      33.9 +/-    2.60  0.090 / 0.090
G25     314.1          37.5                7.8 +/-    0.89      11.8 +/-    0.89  0.060 / 0.030
G29     293.4          15.1                9.1 +/-    1.74      22.5 +/-    1.74  0.050 / 0.040