PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/13-16:27:40
G10     248.9          25.8                9.6 +/-    1.94      18.5 +/-    1.94  0.030 / 0.050
G13     55.2           30.6                8.0 +/-    1.64      13.8 +/-    1.64  0.050 / 0.040
G15     94.9           58.9                8.9 +/-    0.86      10.2 +/-    0.86  0.100 / 0.370
G16     298.2          15.3                4.4 +/-    1.32      10.9 +/-    1.32  0.090 / 0.430
G20     267.3          49.6                9.8 +/-    3.94      12.4 +/-    3.94  0.060 / 0.140
G21     334.2          60.1                7.8 +/-    0.67       8.9 +/-    0.67  0.090 / 0.120
G26     271.3          16.1                8.0 +/-    2.17      19.5 +/-    2.17  0.030 / 0.030
G29     163.3          51.6                9.1 +/-    0.79      11.2 +/-    0.79  0.030 / 0.030