PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/31-10:58:00
G08     266.4          18.3                5.3 +/-    1.59      12.1 +/-    1.59  0.130 / 0.290
G10     62.7           57.4                5.9 +/-    0.92       6.8 +/-    0.92  0.120 / 0.310
G11     310.9          18.0                0.7 +/-   10.44       1.7 +/-   10.44  0.030 / 0.030
G14     267.9          67.3                6.8 +/-    0.99       7.3 +/-    0.99  0.030 / 0.020
G18     311.5          34.3                4.8 +/-    1.21       7.8 +/-    1.21  0.040 / 0.020
G20     95.8           36.3                5.5 +/-    0.69       8.5 +/-    0.69  0.030 / 0.020
G21     154.3          13.0                5.1 +/-    1.11      13.3 +/-    1.11  0.040 / 0.040
G27     233.4          16.5                5.5 +/-    1.91      13.1 +/-    1.91  0.040 / 0.040
G31     179.3          29.2                5.8 +/-    1.08      10.4 +/-    1.08  0.390 / 0.270
G32     318.8          74.3                8.0 +/-    0.87       8.3 +/-    0.87  0.320 / 0.240