PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/08-15:58:00
G02     276.3          78.5                9.0 +/-    0.74       9.2 +/-    0.74  0.080 / 0.250
G05     169.3          25.1               12.7 +/-    1.92      24.7 +/-    1.92  0.090 / 0.210
G06     40.4           45.7                7.2 +/-    0.61       9.5 +/-    0.61  0.050 / 0.140
G12     318.9          67.9                5.8 +/-    0.65       6.2 +/-    0.65  0.050 / 0.140
G17     80.9           14.4                7.7 +/-    1.15      19.3 +/-    1.15  0.030 / 0.040
G19     65.3           35.3                8.1 +/-    1.00      12.8 +/-    1.00  0.030 / 0.040
G24     231.7          27.0               13.1 +/-    2.08      24.5 +/-    2.08  0.030 / 0.040
G25     317.6          24.2                8.4 +/-    2.00      16.6 +/-    2.00  0.030 / 0.050