PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/14-17:43:10
G10     287.6          48.5                8.8 +/-    2.60      11.3 +/-    2.60  0.040 / 0.040
G15     48.5           36.9                7.9 +/-    0.81      12.2 +/-    0.81  0.040 / 0.040
G20     335.1          65.2                9.1 +/-    0.49       9.9 +/-    0.49  0.070 / 0.120
G21     74.3           75.8                9.8 +/-    1.11      10.1 +/-    1.11  0.080 / 0.110
G24     100.8          23.3               10.0 +/-    1.05      20.3 +/-    1.05  0.070 / 0.090
G27     309.0          29.1                7.9 +/-    1.26      14.1 +/-    1.26  0.070 / 0.100
G29     168.0          13.7                9.2 +/-    2.05      23.5 +/-    2.05  0.050 / 0.050
G32     207.9          24.9               11.1 +/-    2.05      21.7 +/-    2.05  0.070 / 0.050