PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/26-14:42:30
G01     43.4           19.0                7.5 +/-    0.57      17.0 +/-    0.57  0.090 / 0.170
G06     176.1          34.7               11.8 +/-    1.15      18.9 +/-    1.15  0.070 / 0.210
G13     243.4          24.8                9.6 +/-    1.60      18.9 +/-    1.60  0.060 / 0.090
G15     276.8          13.6                7.7 +/-    1.44      19.8 +/-    1.44  0.060 / 0.110
G17     0.4            72.0               10.0 +/-    0.64      10.5 +/-    0.64  0.130 / 0.280
G19     270.2          68.8                9.4 +/-    0.68      10.0 +/-    0.68  0.160 / 0.380
G24     318.3          14.4                6.2 +/-    1.50      15.6 +/-    1.50  0.070 / 0.150
G28     66.7           48.5                8.4 +/-    0.73      10.8 +/-    0.73  0.070 / 0.160
G30     153.6          33.4               10.1 +/-    1.01      16.5 +/-    1.01  0.030 / 0.030