PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/14-16:28:00
G02     282.7          80.9               11.2 +/-    0.40      11.3 +/-    0.40  0.040 / 0.040
G05     171.7          22.1               17.3 +/-    1.75      36.3 +/-    1.75  0.020 / 0.050
G06     40.0           49.4               11.4 +/-    0.73      14.5 +/-    0.73  0.110 / 0.220
G12     319.4          62.2               11.1 +/-    0.82      12.3 +/-    0.82  0.090 / 0.160
G17     80.7           14.1               11.3 +/-    1.76      28.8 +/-    1.76  0.050 / 0.130
G19     68.6           30.8               12.6 +/-    1.00      21.7 +/-    1.00  0.050 / 0.140
G24     237.3          29.1               12.1 +/-    1.80      21.6 +/-    1.80  0.040 / 0.040
G25     317.8          24.2                9.5 +/-    2.14      18.9 +/-    2.14  0.040 / 0.030