PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/02/22-05:12:40
G02     12.7           69.9                4.5 +/-    0.55       4.7 +/-    0.55  0.090 / 0.180
G05     158.4          44.2                6.8 +/-    0.56       9.3 +/-    0.56  0.080 / 0.160
G06     43.0           36.1                4.5 +/-    1.71       7.0 +/-    1.71  0.030 / 0.020
G12     285.7          77.5                5.6 +/-    0.55       5.7 +/-    0.55  0.020 / 0.020
G19     83.7           21.5                5.4 +/-    1.71      11.4 +/-    1.71  0.060 / 0.080
G25     313.1          41.1                4.8 +/-    0.76       6.9 +/-    0.76  0.070 / 0.070
G29     295.4          18.9                3.9 +/-    1.28       8.8 +/-    1.28  0.030 / 0.040