PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/07-11:13:10
G08     304.0          21.6                5.1 +/-    2.16      10.9 +/-    2.16  0.040 / 0.050
G10     344.1          61.6                4.8 +/-    0.59       5.4 +/-    0.59  0.040 / 0.050
G14     220.6          36.5                7.3 +/-    1.24      11.3 +/-    1.24  0.110 / 0.150
G20     47.3           58.0                6.2 +/-    0.39       7.2 +/-    0.39  0.070 / 0.130
G21     138.7          48.2                7.5 +/-    0.33       9.7 +/-    0.33  0.020 / 0.030
G24     66.1           28.2                3.5 +/-    1.35       6.4 +/-    1.35  0.030 / 0.020
G27     271.0          36.1                7.7 +/-    1.43      12.0 +/-    1.43  0.110 / 0.060
G32     227.5          53.1                8.2 +/-    2.86      10.0 +/-    2.86  0.120 / 0.070