PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/04-08:13:10
G05     48.8           16.2                1.1 +/-    1.46       2.8 +/-    1.46  0.150 / 0.360
G10     236.0          13.2                3.6 +/-    4.11       9.5 +/-    4.11  0.130 / 0.340
G13     75.3           35.8                5.0 +/-    0.57       7.8 +/-    0.57  0.220 / 0.470
G15     123.0          52.5                6.3 +/-    0.68       7.7 +/-    0.68  0.230 / 0.530
G20     248.2          37.2                4.6 +/-    0.86       7.0 +/-    0.86  0.070 / 0.200
G21     317.1          50.1                3.8 +/-    0.91       4.7 +/-    0.91  0.130 / 0.210
G25     197.5          10.1                2.9 +/-    1.53       8.1 +/-    1.53  0.030 / 0.040
G26     292.5          18.5                2.5 +/-    1.14       5.8 +/-    1.14  0.030 / 0.040
G29     150.4          67.1                5.5 +/-    0.92       5.9 +/-    0.92  0.040 / 0.070