PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/25-02:28:10
G02     30.2           58.2                8.1 +/-    1.03       9.3 +/-    1.03  0.170 / 0.210
G05     143.4          58.6               10.9 +/-    0.50      12.5 +/-    0.50  0.150 / 0.160
G06     51.4           19.4                7.5 +/-    2.40      16.8 +/-    2.40  0.030 / 0.030
G12     208.0          73.0               11.1 +/-    0.32      11.5 +/-    0.32  0.030 / 0.030
G19     95.9           13.5                8.6 +/-    2.01      22.2 +/-    2.01  0.030 / 0.030
G25     303.9          49.4                8.8 +/-    5.03      11.1 +/-    5.03  0.030 / 0.040
G29     303.8          24.1                7.8 +/-    1.07      15.5 +/-    1.07  0.070 / 0.140