PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/04-19:27:50
G01     318.0          20.7                8.9 +/-    2.26      19.2 +/-    2.26  0.070 / 0.050
G08     252.5          11.5                9.6 +/-    7.16      26.0 +/-    7.16  0.060 / 0.040
G10     85.0           50.7                9.8 +/-    0.64      12.2 +/-    0.64  0.190 / 0.340
G11     298.9          25.2                8.6 +/-    1.19      16.7 +/-    1.19  0.210 / 0.330
G14     308.9          71.4                7.9 +/-    0.62       8.2 +/-    0.62  0.220 / 0.230
G20     108.2          26.6                9.2 +/-    1.16      17.3 +/-    1.16  0.350 / 0.230
G22     302.4          12.2                9.0 +/-    3.23      23.9 +/-    3.23  0.220 / 0.240
G25     93.1           9.5               -13.0 +/-   27.01     -36.8 +/-   27.01  0.170 / 0.270
G31     178.0          43.0               10.5 +/-    1.36      14.5 +/-    1.36  0.180 / 0.340
G32     12.2           65.6                7.8 +/-    0.60       8.5 +/-    0.60  0.070 / 0.070