PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/28-10:43:10
G08     278.2          22.2                6.7 +/-    1.27      14.0 +/-    1.27  0.120 / 0.170
G10     39.3           61.3                4.2 +/-    0.93       4.8 +/-    0.93  0.130 / 0.170
G14     245.2          59.0                7.6 +/-    0.94       8.7 +/-    0.94  0.040 / 0.020
G18     316.3          24.0                4.5 +/-    1.82       9.0 +/-    1.82  0.030 / 0.030
G20     83.0           44.0                4.9 +/-    1.47       6.7 +/-    1.47  0.020 / 0.020
G21     151.5          24.3                5.0 +/-    2.84      10.0 +/-    2.84  0.020 / 0.020
G24     44.8           16.7                3.0 +/-    3.50       7.1 +/-    3.50  0.050 / 0.050
G27     243.1          24.3                5.3 +/-    2.45      10.5 +/-    2.45  0.040 / 0.050
G31     181.8          17.3                2.6 +/-    2.65       6.1 +/-    2.65  0.120 / 0.150
G32     273.7          72.3                6.3 +/-    0.34       6.6 +/-    0.34  0.110 / 0.140