PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/08-22:58:00
G02     199.9          21.0               15.0 +/-    2.82      32.3 +/-    2.82  0.090 / 0.130
G06     174.4          50.5               13.0 +/-    1.00      16.3 +/-    1.00  0.080 / 0.110
G13     226.6          13.5               12.0 +/-   18.89      30.8 +/-   18.89  0.050 / 0.080
G17     23.0           59.2               11.9 +/-    0.49      13.6 +/-    0.49  0.050 / 0.080
G19     321.4          71.3               10.3 +/-    1.04      10.9 +/-    1.04  0.040 / 0.030
G24     309.2          30.5                9.6 +/-    1.50      16.6 +/-    1.50  0.040 / 0.030
G28     84.4           43.3               12.9 +/-    0.94      17.8 +/-    0.94  0.200 / 0.840
G30     156.7          13.9               16.7 +/-    2.08      42.6 +/-    2.08  0.170 / 0.500