PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/14-17:28:00
G02     20.4           65.3               14.1 +/-    0.55      15.3 +/-    0.55  0.030 / 0.040
G05     159.5          49.1               19.2 +/-    0.93      24.5 +/-    0.93  0.030 / 0.040
G06     48.3           25.2               13.2 +/-    1.19      25.6 +/-    1.19  0.060 / 0.060
G12     229.0          77.8               12.7 +/-    0.64      12.9 +/-    0.64  0.050 / 0.070
G19     92.3           14.7               15.9 +/-    1.92      39.7 +/-    1.92  0.060 / 0.060
G20     197.5          16.3               20.1 +/-    3.43      48.5 +/-    3.43  0.060 / 0.050
G24     216.8          10.7               17.3 +/-    1.90      47.7 +/-    1.90  0.040 / 0.040
G25     307.4          48.5               16.3 +/-    1.70      20.9 +/-    1.70  0.040 / 0.040
G29     301.3          23.4               12.5 +/-    1.04      25.3 +/-    1.04  0.070 / 0.130