PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/07-18:12:30
G01     318.1          21.6                6.5 +/-    3.88      13.8 +/-    3.88  0.130 / 0.350
G08     255.6          12.9                9.2 +/-    1.40      24.1 +/-    1.40  0.040 / 0.050
G10     83.0           50.4                8.8 +/-    0.81      11.1 +/-    0.81  0.040 / 0.060
G11     305.2          20.5                9.9 +/-    2.43      21.5 +/-    2.43  0.140 / 0.250
G14     288.6          68.6                8.3 +/-    0.69       8.8 +/-    0.69  0.110 / 0.150
G20     107.8          25.0               10.7 +/-    0.68      20.8 +/-    0.68  0.230 / 0.330
G22     301.6          10.2               -2.2 +/-    2.43      -6.0 +/-    2.43  0.240 / 0.360
G31     175.8          42.8               10.8 +/-    0.87      15.1 +/-    0.87  0.030 / 0.050
G32     13.7           65.6                7.1 +/-    0.65       7.7 +/-    0.65  0.030 / 0.050