PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/04-19:57:50
G08     318.0          13.5               12.3 +/-    2.50      31.7 +/-    2.50  0.050 / 0.060
G10     309.4          55.1               11.7 +/-    1.78      13.9 +/-    1.78  0.050 / 0.060
G14     212.8          20.5               14.6 +/-    2.88      31.8 +/-    2.88  0.030 / 0.030
G15     45.5           20.1               11.8 +/-    2.29      25.9 +/-    2.29  0.030 / 0.030
G18     18.8           63.5               12.3 +/-    0.91      13.6 +/-    0.91  0.120 / 0.350
G20     77.1           13.6               11.7 +/-    1.57      30.2 +/-    1.57  0.110 / 0.350
G21     119.4          64.4               14.9 +/-    0.75      16.3 +/-    0.75  0.080 / 0.090
G24     89.6           29.3               16.2 +/-    1.42      28.8 +/-    1.42  0.080 / 0.090
G27     288.8          37.6                9.6 +/-    1.43      14.5 +/-    1.43  0.080 / 0.070
G32     215.3          38.2               15.6 +/-    1.90      23.5 +/-    1.90  0.080 / 0.060