PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/07-12:12:50
G08     276.4          21.9                5.9 +/-    2.09      12.4 +/-    2.09  0.090 / 0.150
G10     42.0           61.1                6.1 +/-    0.84       6.8 +/-    0.84  0.090 / 0.200
G14     247.4          60.1                7.7 +/-    0.63       8.7 +/-    0.63  0.050 / 0.050
G18     315.8          25.7                3.7 +/-    1.41       7.1 +/-    1.41  0.050 / 0.050
G20     84.6           43.1                6.5 +/-    1.72       8.9 +/-    1.72  0.030 / 0.020
G21     151.6          22.0                7.2 +/-    2.33      15.0 +/-    2.33  0.030 / 0.020
G24     43.7           15.4                4.1 +/-    3.56      10.2 +/-    3.56  0.030 / 0.020
G27     242.3          23.4                7.6 +/-    1.94      15.4 +/-    1.94  0.020 / 0.030
G31     182.1          17.9                4.5 +/-    1.50      10.5 +/-    1.50  0.180 / 0.230
G32     280.9          73.6                7.6 +/-    0.59       7.9 +/-    0.59  0.190 / 0.270