PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/08-08:57:40
G01     96.7           30.0                7.5 +/-    1.00      13.1 +/-    1.00  0.030 / 0.030
G07     120.2          49.3                8.5 +/-    1.47      10.9 +/-    1.47  0.040 / 0.030
G08     41.7           10.1                3.8 +/-    2.78      10.5 +/-    2.78  0.040 / 0.040
G11     73.8           41.0                6.8 +/-    1.67       9.7 +/-    1.67  0.050 / 0.060
G13     300.4          34.3                6.9 +/-    1.97      11.2 +/-    1.97  0.050 / 0.110
G17     210.0          50.0               10.5 +/-    0.99      13.2 +/-    0.99  0.050 / 0.100
G18     67.8           23.9                5.2 +/-    1.45      10.5 +/-    1.45  0.070 / 0.120
G19     212.6          18.3                7.4 +/-    1.70      17.1 +/-    1.70  0.070 / 0.130
G28     335.2          61.8                7.0 +/-    0.54       7.8 +/-    0.54  0.150 / 0.200
G30     70.8           80.3                7.6 +/-    0.55       7.7 +/-    0.55  0.210 / 0.380