PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/13-03:27:50
G02     341.0          79.2                1.2 +/-    1.15       1.2 +/-    1.15  0.090 / 0.140
G05     164.4          32.2                7.5 +/-    0.62      12.6 +/-    0.62  0.100 / 0.120
G06     39.3           47.1                0.8 +/-    0.77       1.0 +/-    0.77  0.050 / 0.040
G12     315.0          66.5                0.0 +/-    1.07       0.0 +/-    1.07  0.040 / 0.050
G17     85.0           10.9                3.4 +/-    3.57       9.4 +/-    3.57  0.050 / 0.080
G19     72.8           28.5                2.8 +/-    0.72       5.1 +/-    0.72  0.070 / 0.090
G24     227.7          23.4                6.1 +/-    2.64      12.5 +/-    2.64  0.100 / 0.250
G25     317.0          29.2               -0.5 +/-    1.89      -0.9 +/-    1.89  0.130 / 0.300
G29     286.5          12.1                3.5 +/-    2.25       9.2 +/-    2.25  0.080 / 0.170