PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/23-01:58:10
G02     231.1          72.6                8.2 +/-    0.31       8.5 +/-    0.31  0.070 / 0.090
G05     173.0          12.4                6.4 +/-    2.99      17.0 +/-    2.99  0.060 / 0.090
G06     42.4           68.3                7.3 +/-    0.40       7.8 +/-    0.40  0.040 / 0.050
G12     320.3          44.3                6.3 +/-    0.56       8.5 +/-    0.56  0.040 / 0.060
G17     67.4           23.8                5.6 +/-    1.86      11.3 +/-    1.86  0.040 / 0.040
G19     51.5           41.8                5.6 +/-    1.29       7.9 +/-    1.29  0.030 / 0.050
G24     248.3          37.2                9.2 +/-    1.47      14.0 +/-    1.47  0.210 / 0.360