PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/04-09:12:50
G01     317.3          22.6                1.6 +/-    0.97       3.3 +/-    0.97  0.100 / 0.260
G08     253.5          11.0                2.9 +/-    2.26       7.9 +/-    2.26  0.090 / 0.200
G10     87.3           49.3                5.5 +/-    0.75       7.0 +/-    0.75  0.030 / 0.040
G11     298.0          25.3                5.2 +/-    1.51      10.0 +/-    1.51  0.030 / 0.040
G14     313.8          71.6                3.8 +/-    0.62       4.0 +/-    0.62  0.070 / 0.160
G18     298.4          45.2                4.6 +/-    1.82       6.2 +/-    1.82  0.090 / 0.190
G20     109.5          25.5                5.8 +/-    2.29      11.1 +/-    2.29  0.040 / 0.060
G22     304.3          17.1                2.1 +/-    1.75       5.0 +/-    1.75  0.050 / 0.050
G31     174.8          46.9                5.7 +/-    1.51       7.5 +/-    1.51  0.100 / 0.390
G32     6.6            66.9                4.3 +/-    0.38       4.7 +/-    0.38  0.110 / 0.560