PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/22-17:57:50
G10     248.9          25.7               10.8 +/-    1.73      20.7 +/-    1.73  0.040 / 0.060
G13     55.3           30.7               10.6 +/-    1.60      18.4 +/-    1.60  0.050 / 0.060
G15     97.0           59.3               12.6 +/-    0.49      14.4 +/-    0.49  0.050 / 0.140
G16     297.7          15.5                8.8 +/-    3.13      21.6 +/-    3.13  0.050 / 0.180
G20     267.2          49.5               10.3 +/-    0.92      13.0 +/-    0.92  0.160 / 0.620
G21     332.9          59.5                9.0 +/-    0.76      10.3 +/-    0.76  0.160 / 0.640
G26     270.5          16.2               11.1 +/-    3.31      26.7 +/-    3.31  0.030 / 0.040
G29     163.7          52.2               12.1 +/-    0.85      14.8 +/-    0.85  0.030 / 0.040