PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/06-17:28:00
G01     62.3           30.9                6.7 +/-    0.70      11.5 +/-    0.70  0.070 / 0.130
G06     180.9          11.6                6.1 +/-   21.21      16.4 +/-   21.21  0.100 / 0.200
G07     140.4          19.8                9.7 +/-    0.93      21.5 +/-    0.93  0.040 / 0.060
G11     48.9           25.6                7.5 +/-    1.11      14.4 +/-    1.11  0.040 / 0.050
G13     264.7          36.9               12.2 +/-    1.67      18.8 +/-    1.67  0.090 / 0.210
G15     295.6          16.4                8.6 +/-    2.43      20.6 +/-    2.43  0.090 / 0.170
G17     246.6          73.7                9.9 +/-    0.66      10.3 +/-    0.66  0.050 / 0.100
G18     42.9           13.6                6.4 +/-    0.83      16.4 +/-    0.83  0.060 / 0.110
G19     229.2          49.2               11.8 +/-    1.52      15.1 +/-    1.52  0.100 / 0.210
G28     21.7           59.7                8.8 +/-    0.62      10.0 +/-    0.62  0.110 / 0.250