PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/07-19:57:30
G01     305.6          34.6               10.8 +/-    1.18      17.3 +/-    1.18  0.070 / 0.120
G10     108.1          37.9               14.0 +/-    0.81      21.1 +/-    0.81  0.070 / 0.160
G11     278.0          28.3               10.3 +/-    1.30      18.7 +/-    1.30  0.040 / 0.070
G14     2.5            65.9               10.6 +/-    0.87      11.5 +/-    0.87  0.050 / 0.060
G20     121.7          12.5               14.8 +/-    2.47      39.1 +/-    2.47  0.040 / 0.050
G22     310.4          26.8                9.2 +/-    0.95      17.3 +/-    0.95  0.040 / 0.050
G25     74.6           15.7                9.9 +/-    0.94      24.2 +/-    0.94  0.070 / 0.100
G31     170.9          64.5               14.0 +/-    1.05      15.4 +/-    1.05  0.070 / 0.090
G32     37.4           51.7               10.9 +/-    0.49      13.5 +/-    0.49  0.080 / 0.270