PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/15-18:58:10
G05     50.6           14.7               11.8 +/-    1.12      29.5 +/-    1.12  0.100 / 0.310
G10     240.1          15.9               12.5 +/-    2.50      30.5 +/-    2.50  0.090 / 0.280
G13     69.9           36.6               11.9 +/-    0.70      18.4 +/-    0.70  0.040 / 0.050
G15     113.3          55.3               12.6 +/-    0.31      15.0 +/-    0.31  0.040 / 0.040
G16     313.2          11.5                9.2 +/-    2.64      24.9 +/-    2.64  0.030 / 0.070
G18     251.9          47.3               10.3 +/-    1.68      13.5 +/-    1.68  0.040 / 0.070
G20     32.1           61.4               12.0 +/-    0.87      13.5 +/-    0.87  0.080 / 0.210
G21     320.9          52.8               12.1 +/-    0.96      14.8 +/-    0.96  0.100 / 0.220
G26     286.5          18.4               10.4 +/-    1.47      23.8 +/-    1.47  0.200 / 0.560
G29     156.5          59.7               14.6 +/-    0.74      16.6 +/-    0.74  0.160 / 0.590