PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/02/13-15:43:00
G01     293.8          40.0               11.9 +/-    8.50      17.2 +/-    8.50  0.050 / 0.070
G03     311.4          16.8                6.7 +/-    4.20      16.0 +/-    4.20  0.050 / 0.080
G10     117.7          29.6               10.9 +/-    1.76      19.3 +/-    1.76  0.110 / 0.190
G11     266.1          26.4                6.7 +/-    2.23      12.7 +/-    2.23  0.120 / 0.190
G14     22.1           59.7                8.0 +/-    0.86       9.1 +/-    0.86  0.110 / 0.080
G18     250.3          48.9                8.7 +/-    2.80      11.1 +/-    2.80  0.110 / 0.070
G22     313.9          38.1                5.6 +/-    1.08       8.4 +/-    1.08  0.050 / 0.050
G25     66.5           17.4                8.8 +/-    1.17      20.7 +/-    1.17  0.040 / 0.030
G31     156.5          75.6                8.8 +/-    0.68       9.0 +/-    0.68  0.040 / 0.050
G32     46.1           46.2                6.0 +/-    1.32       8.0 +/-    1.32  0.040 / 0.050