PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/10-18:58:00
G05     47.3           22.9               10.3 +/-    0.50      21.2 +/-    0.50  0.070 / 0.210
G13     82.5           37.4               11.7 +/-    0.41      17.7 +/-    0.41  0.090 / 0.200
G15     129.0          49.6               12.5 +/-    1.15      15.8 +/-    1.15  0.070 / 0.160
G18     242.3          39.8               12.2 +/-    1.50      17.8 +/-    1.50  0.060 / 0.150
G20     23.3           70.4               11.2 +/-    0.69      11.8 +/-    0.69  0.040 / 0.070
G21     311.0          46.4               10.1 +/-    1.08      13.3 +/-    1.08  0.040 / 0.070
G25     199.6          12.5               10.9 +/-    1.48      28.7 +/-    1.48  0.130 / 0.420
G26     295.9          18.7               10.0 +/-    1.10      22.6 +/-    1.10  0.160 / 0.440
G29     149.0          70.9               13.4 +/-    1.44      14.1 +/-    1.44  0.040 / 0.050