PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/25-00:27:50
G01     288.7          40.5               11.7 +/-    0.89      16.9 +/-    0.89  0.050 / 0.080
G03     312.2          16.8               13.3 +/-    1.42      31.6 +/-    1.42  0.040 / 0.070
G10     120.8          28.3               11.0 +/-    0.88      20.0 +/-    0.88  0.050 / 0.100
G11     262.6          26.2               15.2 +/-    1.09      28.8 +/-    1.09  0.040 / 0.090
G14     28.1           57.1                9.0 +/-    1.04      10.4 +/-    1.04  0.060 / 0.120
G22     313.8          38.7               10.9 +/-    2.19      16.2 +/-    2.19  0.050 / 0.130
G25     63.6           18.3                9.2 +/-    0.92      21.2 +/-    0.92  0.020 / 0.030
G26     159.5          12.3               15.2 +/-    3.53      40.4 +/-    3.53  0.020 / 0.030
G31     147.9          79.1               12.3 +/-    0.61      12.5 +/-    0.61  0.030 / 0.060
G32     50.3           43.3                8.1 +/-    0.47      11.1 +/-    0.47  0.040 / 0.060