PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/07/26-20:57:50
G02     19.0           65.5                6.9 +/-    0.49       7.6 +/-    0.49  0.050 / 0.030
G05     155.7          52.5               10.2 +/-    0.53      12.5 +/-    0.53  0.030 / 0.030
G06     49.9           21.9                6.4 +/-    2.15      13.4 +/-    2.15  0.040 / 0.020
G12     212.0          75.4                8.9 +/-    0.35       9.1 +/-    0.35  0.030 / 0.070
G19     94.4           13.1                8.7 +/-    1.77      22.6 +/-    1.77  0.070 / 0.050
G20     197.0          19.4               13.5 +/-    3.20      30.2 +/-    3.20  0.050 / 0.060
G25     303.8          52.0                8.2 +/-    2.15      10.1 +/-    2.15  0.030 / 0.040
G29     302.1          23.3                7.6 +/-    1.79      15.5 +/-    1.79  0.030 / 0.030