PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/29-14:43:00
G01     100.5          27.8               10.5 +/-    0.74      19.2 +/-    0.74  0.030 / 0.050
G07     116.2          49.5               10.1 +/-    0.55      12.8 +/-    0.55  0.030 / 0.050
G08     41.7           17.5                6.0 +/-    0.90      13.9 +/-    0.90  0.040 / 0.060
G09     174.3          10.1                8.8 +/-    0.94      24.4 +/-    0.94  0.040 / 0.050
G11     80.7           43.2                9.5 +/-    0.46      13.1 +/-    0.46  0.050 / 0.090
G13     304.4          32.8                6.7 +/-    1.92      11.1 +/-    1.92  0.050 / 0.090
G17     207.9          41.1               10.1 +/-    1.28      14.5 +/-    1.28  0.090 / 0.120
G18     73.2           24.4                7.7 +/-    0.84      15.3 +/-    0.84  0.090 / 0.120
G28     316.9          59.9                8.8 +/-    1.00      10.0 +/-    1.00  0.050 / 0.080
G30     65.2           79.1                9.1 +/-    0.82       9.2 +/-    0.82  0.050 / 0.090