PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/10-15:28:00
G01     85.0           32.7               10.4 +/-    0.70      17.3 +/-    0.70  0.030 / 0.030
G07     129.3          41.8               11.8 +/-    1.09      16.7 +/-    1.09  0.030 / 0.040
G11     63.5           37.6                9.3 +/-    0.29      14.0 +/-    0.29  0.060 / 0.090
G13     289.3          37.2               10.2 +/-    1.09      15.5 +/-    1.09  0.060 / 0.100
G15     314.0          10.4               -7.6 +/-   19.50     -21.1 +/-   19.50  0.050 / 0.060
G17     218.1          57.5               11.9 +/-    0.71      13.8 +/-    0.71  0.050 / 0.050
G18     59.3           22.7                8.0 +/-    0.79      16.5 +/-    0.79  0.030 / 0.070
G19     216.9          28.5               11.8 +/-    1.62      21.4 +/-    1.62  0.030 / 0.070
G28     357.5          61.4                9.8 +/-    0.87      11.0 +/-    0.87  0.070 / 0.090
G30     116.0          73.4               11.8 +/-    1.04      12.3 +/-    1.04  0.070 / 0.100