PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/12-19:58:00
G02     25.9           61.3               11.1 +/-    0.94      12.4 +/-    0.94  0.040 / 0.060
G05     153.3          56.2               13.7 +/-    0.50      16.1 +/-    0.50  0.030 / 0.060
G06     51.9           18.9                9.0 +/-    3.30      20.3 +/-    3.30  0.030 / 0.030
G12     204.1          71.6               11.1 +/-    0.60      11.7 +/-    0.60  0.020 / 0.040
G19     97.8           10.6               11.1 +/-    0.99      30.5 +/-    0.99  0.040 / 0.050
G20     197.4          23.3               14.2 +/-    2.67      29.0 +/-    2.67  0.040 / 0.060
G25     298.2          55.0               10.3 +/-    2.38      12.3 +/-    2.38  0.050 / 0.140
G29     305.5          26.9               11.5 +/-    1.19      21.5 +/-    1.19  0.070 / 0.130