PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/12-19:12:50
G02     348.1          76.9               10.6 +/-    0.38      10.9 +/-    0.38  0.040 / 0.030
G05     166.2          35.5               14.2 +/-    1.91      22.3 +/-    1.91  0.050 / 0.020
G06     43.3           35.7               10.2 +/-    1.38      16.1 +/-    1.38  0.250 / 0.260
G12     298.2          76.5               10.2 +/-    0.48      10.4 +/-    0.48  0.130 / 0.360
G19     80.9           22.5                9.0 +/-    1.93      18.7 +/-    1.93  0.030 / 0.030
G24     226.2          19.9               11.1 +/-    1.92      24.5 +/-    1.92  0.030 / 0.030
G25     315.3          38.1                8.9 +/-    1.15      13.4 +/-    1.15  0.070 / 0.080
G29     290.8          13.4               10.8 +/-    1.48      28.0 +/-    1.48  0.060 / 0.100