PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/22-06:57:50
G05     48.5           16.8                1.1 +/-    0.75       2.5 +/-    0.75  0.040 / 0.050
G10     235.3          12.5                3.7 +/-   20.87       9.7 +/-   20.87  0.040 / 0.060
G13     76.6           35.8                6.4 +/-    1.28      10.0 +/-    1.28  0.140 / 0.150
G15     124.2          51.8                6.4 +/-    0.80       7.9 +/-    0.80  0.190 / 0.310
G20     247.3          36.4                7.3 +/-    2.01      11.3 +/-    2.01  0.210 / 0.480
G21     315.2          48.7                4.0 +/-    0.96       5.1 +/-    0.96  0.280 / 0.490
G25     198.5          11.2                2.8 +/-    1.86       7.6 +/-    1.86  0.070 / 0.100
G26     292.7          18.8                2.6 +/-    0.67       6.0 +/-    0.67  0.050 / 0.090