PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/29-14:58:10
G01     92.3           30.6                9.9 +/-    0.60      17.1 +/-    0.60  0.040 / 0.080
G07     123.7          43.3                9.9 +/-    0.66      13.6 +/-    0.66  0.030 / 0.070
G08     42.1           11.4                6.3 +/-    2.86      17.0 +/-    2.86  0.050 / 0.060
G11     71.0           41.3                9.6 +/-    0.50      13.7 +/-    0.50  0.040 / 0.060
G13     296.8          36.2                9.4 +/-    0.93      14.5 +/-    0.93  0.040 / 0.090
G17     212.0          48.6               11.7 +/-    1.00      15.0 +/-    1.00  0.040 / 0.100
G18     65.3           23.9                8.0 +/-    0.95      16.1 +/-    0.95  0.080 / 0.130
G19     212.5          25.8               10.2 +/-    2.11      19.6 +/-    2.11  0.070 / 0.150
G28     331.3          61.1                7.6 +/-    1.32       8.5 +/-    1.32  0.040 / 0.060
G30     100.0          75.9                9.5 +/-    1.09       9.8 +/-    1.09  0.040 / 0.060