PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/11-17:57:50
G01     317.9          22.2                5.2 +/-    2.00      10.9 +/-    2.00  0.120 / 0.310
G08     255.0          12.5                6.7 +/-   14.72      17.7 +/-   14.72  0.250 / 0.380
G10     83.9           50.0                7.9 +/-    0.55       9.9 +/-    0.55  0.090 / 0.140
G11     304.8          20.7                8.3 +/-    4.50      18.0 +/-    4.50  0.100 / 0.150
G14     290.7          68.9                8.4 +/-    0.63       8.9 +/-    0.63  0.040 / 0.060
G20     108.4          24.5                7.9 +/-    1.02      15.6 +/-    1.02  0.040 / 0.050
G22     301.9          10.7                0.1 +/-    9.51       0.2 +/-    9.51  0.230 / 0.440
G31     175.8          43.4               11.7 +/-    0.70      16.1 +/-    0.70  0.270 / 0.440
G32     14.8           65.1                7.4 +/-    0.58       8.0 +/-    0.58  0.030 / 0.050