PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/25-14:57:40
G02     218.1          58.5                9.4 +/-    0.88      10.9 +/-    0.88  0.070 / 0.130
G06     53.9           72.3                9.3 +/-    0.50       9.7 +/-    0.50  0.070 / 0.120
G12     318.4          37.1                8.8 +/-    1.00      13.5 +/-    1.00  0.070 / 0.090
G17     56.1           34.0                8.1 +/-    2.32      13.1 +/-    2.32  0.040 / 0.080
G19     42.3           46.8                8.2 +/-    1.33      10.8 +/-    1.33  0.050 / 0.090
G24     264.6          40.8                7.6 +/-    2.14      10.9 +/-    2.14  0.050 / 0.050
G28     121.6          18.6                9.1 +/-    1.77      20.7 +/-    1.77  0.040 / 0.030