PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/15-11:12:50
G01     303.9          36.0                5.9 +/-    2.28       9.2 +/-    2.28  0.080 / 0.070
G10     109.5          36.4                6.8 +/-    0.96      10.5 +/-    0.96  0.080 / 0.090
G11     276.8          27.9                5.3 +/-    0.94       9.8 +/-    0.94  0.040 / 0.060
G14     5.9            65.1                4.9 +/-    0.56       5.3 +/-    0.56  0.040 / 0.050
G18     268.2          51.0                9.3 +/-    5.90      11.6 +/-    5.90  0.040 / 0.030
G20     122.7          11.3                4.7 +/-    1.92      12.6 +/-    1.92  0.040 / 0.030
G22     312.4          33.8                3.8 +/-    0.84       6.2 +/-    0.84  0.040 / 0.050
G25     78.0           16.9                2.7 +/-    1.55       6.4 +/-    1.55  0.040 / 0.070
G31     164.5          67.8                8.1 +/-    0.48       8.7 +/-    0.48  0.090 / 0.090
G32     33.1           54.7                5.4 +/-    1.73       6.5 +/-    1.73  0.080 / 0.100