PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/24-09:57:50
G01     95.3           30.4                6.0 +/-    0.83      10.4 +/-    0.83  0.030 / 0.030
G07     121.4          48.5                6.8 +/-    0.70       8.8 +/-    0.70  0.030 / 0.030
G11     72.4           40.7                5.2 +/-    0.41       7.5 +/-    0.41  0.070 / 0.130
G13     299.1          34.8                6.9 +/-    2.10      11.0 +/-    2.10  0.080 / 0.130
G17     210.9          51.0                7.5 +/-    0.91       9.3 +/-    0.91  0.050 / 0.140
G18     66.8           23.9                4.4 +/-    1.04       8.9 +/-    1.04  0.070 / 0.140
G19     213.1          19.0                6.1 +/-    2.91      13.8 +/-    2.91  0.070 / 0.140
G28     338.1          61.8                3.5 +/-    0.51       3.9 +/-    0.51  0.070 / 0.180
G30     78.6           79.9                5.5 +/-    0.50       5.6 +/-    0.50  0.050 / 0.080