PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/11-13:58:00
G01     316.1          23.6                4.6 +/-    1.57       9.2 +/-    1.57  0.110 / 0.150
G10     90.0           49.3                5.9 +/-    1.25       7.5 +/-    1.25  0.160 / 0.140
G11     298.9          24.1                5.1 +/-    1.40      10.1 +/-    1.40  0.040 / 0.050
G14     313.2          70.3                4.5 +/-    0.41       4.8 +/-    0.41  0.050 / 0.040
G22     304.8          18.0                4.4 +/-    2.12      10.2 +/-    2.12  0.030 / 0.040
G25     95.7           11.7                8.4 +/-    1.10      22.5 +/-    1.10  0.040 / 0.040
G31     172.7          51.2                8.5 +/-    0.55      10.6 +/-    0.55  0.140 / 0.210
G32     21.5           61.4                5.0 +/-    0.71       5.6 +/-    0.71  0.130 / 0.220