PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/16-03:57:40
G02     21.9           64.1                2.6 +/-    0.97       2.8 +/-    0.97  0.030 / 0.030
G05     152.7          51.2                5.5 +/-    0.54       6.8 +/-    0.54  0.020 / 0.030
G06     45.9           29.8                1.3 +/-    1.54       2.3 +/-    1.54  0.040 / 0.050
G12     248.9          78.7                2.6 +/-    0.48       2.6 +/-    0.48  0.030 / 0.040
G19     89.7           17.1                4.6 +/-    1.51      10.8 +/-    1.51  0.040 / 0.040
G25     309.0          46.2                2.1 +/-    1.31       2.8 +/-    1.31  0.050 / 0.050
G29     301.0          24.3                2.9 +/-    1.27       5.8 +/-    1.27  0.060 / 0.070