PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/31-11:43:00
G01     314.9          26.2                4.8 +/-    1.19       9.1 +/-    1.19  0.090 / 0.160
G10     93.7           46.3                5.4 +/-    0.95       7.1 +/-    0.95  0.130 / 0.160
G11     292.6          26.9                4.6 +/-    1.91       8.6 +/-    1.91  0.040 / 0.050
G14     330.5          71.0                5.6 +/-    0.76       5.9 +/-    0.76  0.040 / 0.040
G18     291.2          48.3                7.7 +/-    5.23      10.0 +/-    5.23  0.030 / 0.020
G20     113.2          21.9                3.6 +/-    2.11       7.5 +/-    2.11  0.030 / 0.030
G22     306.7          21.4                3.8 +/-    3.75       8.0 +/-    3.75  0.050 / 0.050
G25     91.5           12.3                3.4 +/-    1.35       9.1 +/-    1.35  0.040 / 0.040
G31     174.7          51.3                7.5 +/-    0.54       9.3 +/-    0.54  0.120 / 0.230
G32     14.0           64.0                5.5 +/-    0.70       6.1 +/-    0.70  0.130 / 0.150