PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/02/25-14:27:50
G01     306.4          34.3                3.8 +/-    1.65       6.1 +/-    1.65  0.100 / 0.100
G10     107.0          38.4                6.3 +/-    0.59       9.3 +/-    0.59  0.100 / 0.090
G11     279.4          28.2                5.2 +/-    1.92       9.5 +/-    1.92  0.040 / 0.040
G14     1.1            66.3                3.7 +/-    0.41       4.0 +/-    0.41  0.040 / 0.040
G18     270.7          51.6                5.8 +/-    2.15       7.2 +/-    2.15  0.050 / 0.050
G20     121.1          13.2                6.8 +/-    1.51      17.6 +/-    1.51  0.050 / 0.050
G22     310.8          28.7                3.5 +/-    0.72       6.2 +/-    0.72  0.040 / 0.020
G25     78.9           16.0                5.2 +/-    1.98      12.6 +/-    1.98  0.050 / 0.030
G31     171.3          63.3                7.3 +/-    0.69       8.0 +/-    0.69  0.070 / 0.050
G32     32.9           54.7                4.9 +/-    0.92       5.8 +/-    0.92  0.060 / 0.060