PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/28-16:43:00
G02     27.6           60.3               21.0 +/-    0.60      23.8 +/-    0.60  0.060 / 0.060
G05     153.8          55.3               25.7 +/-    0.69      30.5 +/-    0.69  0.050 / 0.050
G06     50.8           21.3               14.7 +/-    1.18      31.4 +/-    1.18  0.030 / 0.030
G12     211.1          73.5               20.4 +/-    0.94      21.2 +/-    0.94  0.030 / 0.030
G19     96.7           11.5               14.3 +/-    1.44      38.8 +/-    1.44  0.100 / 0.260
G20     197.9          21.1               29.2 +/-    1.77      62.6 +/-    1.77  0.080 / 0.220
G25     301.8          52.2               19.4 +/-    1.69      23.8 +/-    1.69  0.040 / 0.040
G29     305.6          27.9               18.5 +/-    1.29      33.9 +/-    1.29  0.030 / 0.050