PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/30-03:28:10
G01     311.1          29.8                6.4 +/-    1.36      11.2 +/-    1.36  0.030 / 0.030
G10     99.7           44.8                7.4 +/-    0.80      10.0 +/-    0.80  0.030 / 0.030
G11     285.8          29.2                8.0 +/-    2.19      14.2 +/-    2.19  0.080 / 0.120
G14     348.8          68.7                6.2 +/-    0.62       6.6 +/-    0.62  0.070 / 0.110
G18     113.3          19.1                5.8 +/-    1.86      13.1 +/-    1.86  0.030 / 0.040
G22     307.4          21.6                8.0 +/-    2.38      16.9 +/-    2.38  0.040 / 0.040
G25     83.6           14.5                6.6 +/-    2.47      16.6 +/-    2.47  0.030 / 0.030
G31     172.5          58.0                8.5 +/-    0.68       9.8 +/-    0.68  0.030 / 0.030
G32     27.2           57.9                6.0 +/-    0.96       6.9 +/-    0.96  0.130 / 0.210