PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/13-18:42:40
G01     300.0          39.1               10.1 +/-    1.08      14.9 +/-    1.08  0.070 / 0.140
G10     111.6          33.7               10.8 +/-    0.65      17.6 +/-    0.65  0.070 / 0.130
G11     280.0          25.5               12.1 +/-    2.25      23.4 +/-    2.25  0.040 / 0.070
G14     358.3          66.1                7.8 +/-    0.67       8.4 +/-    0.67  0.040 / 0.060
G22     311.8          29.3                8.1 +/-    2.02      14.4 +/-    2.02  0.100 / 0.170
G25     76.7           17.3                8.8 +/-    1.14      20.7 +/-    1.14  0.090 / 0.190
G31     160.5          70.1               11.1 +/-    0.96      11.7 +/-    0.96  0.080 / 0.070
G32     43.3           47.1                7.6 +/-    0.51      10.0 +/-    0.51  0.080 / 0.070