PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/16-19:12:50
G01     308.8          32.3                8.5 +/-    2.08      14.2 +/-    2.08  0.100 / 0.120
G10     104.2          40.5                8.8 +/-    0.81      12.7 +/-    0.81  0.120 / 0.150
G11     282.2          28.4                8.3 +/-    1.20      15.0 +/-    1.20  0.040 / 0.070
G14     354.5          67.6                6.8 +/-    0.95       7.3 +/-    0.95  0.040 / 0.060
G18     275.6          51.3               11.2 +/-    1.18      13.9 +/-    1.18  0.080 / 0.200
G20     119.4          15.3                8.1 +/-    1.10      20.1 +/-    1.10  0.090 / 0.160
G22     309.2          24.0                7.8 +/-    1.99      15.7 +/-    1.99  0.040 / 0.040
G25     77.8           14.8                6.9 +/-    1.46      17.2 +/-    1.46  0.030 / 0.050
G31     174.1          59.8               10.0 +/-    0.99      11.4 +/-    0.99  0.080 / 0.180
G32     33.0           54.6                7.0 +/-    0.60       8.4 +/-    0.60  0.130 / 0.210