PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/09-22:12:40
G01     230.6          21.4                8.8 +/-    1.67      18.7 +/-    1.67  0.070 / 0.160
G03     300.3          63.3                6.8 +/-    0.60       7.5 +/-    0.60  0.100 / 0.160
G14     81.4           27.3                7.9 +/-    1.50      14.7 +/-    1.50  0.040 / 0.030
G16     151.9          38.5               12.2 +/-    1.25      18.1 +/-    1.25  0.040 / 0.030
G22     237.5          74.3                8.9 +/-    0.41       9.3 +/-    0.41  0.130 / 0.230
G23     301.8          31.4                8.4 +/-    0.92      14.4 +/-    0.92  0.140 / 0.270
G26     112.0          52.6               10.7 +/-    0.41      13.1 +/-    0.41  0.070 / 0.090
G31     42.3           40.8                6.1 +/-    1.05       8.8 +/-    1.05  0.070 / 0.090
G32     94.4           10.3               11.2 +/-    2.14      31.0 +/-    2.14  0.030 / 0.040