PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/23-10:27:50
G01     308.9          32.6                3.8 +/-    0.80       6.3 +/-    0.80  0.080 / 0.130
G10     103.8          40.3                7.1 +/-    0.86      10.3 +/-    0.86  0.080 / 0.140
G11     283.2          28.0                2.9 +/-    1.55       5.3 +/-    1.55  0.080 / 0.090
G14     353.7          67.9                4.8 +/-    0.61       5.1 +/-    0.61  0.090 / 0.120
G18     278.1          50.7                7.6 +/-    0.92       9.5 +/-    0.92  0.040 / 0.060
G20     119.2          15.5                4.3 +/-    0.93      10.4 +/-    0.93  0.050 / 0.070
G22     310.3          28.3                2.9 +/-    2.07       5.2 +/-    2.07  0.090 / 0.220
G25     83.8           15.4                3.4 +/-    1.49       8.3 +/-    1.49  0.090 / 0.190
G31     169.2          61.9                9.0 +/-    0.62      10.1 +/-    0.62  0.040 / 0.060
G32     27.4           57.8                4.5 +/-    1.19       5.2 +/-    1.19  0.040 / 0.060