PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/03-01:28:10
G02     209.6          53.4               11.4 +/-    0.53      13.8 +/-    0.53  0.110 / 0.110
G06     96.1           79.7                8.2 +/-    0.53       8.3 +/-    0.53  0.100 / 0.110
G12     315.4          28.0                6.4 +/-    1.01      11.6 +/-    1.01  0.110 / 0.080
G17     47.8           40.9                5.5 +/-    0.92       7.9 +/-    0.92  0.140 / 0.070
G19     28.4           55.0                7.1 +/-    1.66       8.4 +/-    1.66  0.040 / 0.020
G24     277.3          42.3                9.9 +/-    1.13      13.9 +/-    1.13  0.050 / 0.020
G28     117.0          19.3                9.6 +/-    1.94      21.5 +/-    1.94  0.130 / 0.220