PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/11-22:42:30
G03     253.8          69.9                8.7 +/-    0.45       9.2 +/-    0.45  0.030 / 0.040
G09     301.5          17.1                6.9 +/-    3.16      16.3 +/-    3.16  0.040 / 0.040
G14     96.1           16.7                8.4 +/-    1.70      20.0 +/-    1.70  0.040 / 0.050
G16     135.3          54.8               10.5 +/-    1.00      12.6 +/-    1.00  0.040 / 0.040
G22     200.3          60.4               10.2 +/-    0.43      11.6 +/-    0.43  0.030 / 0.040
G23     314.2          43.6                6.9 +/-    0.71       9.5 +/-    0.71  0.040 / 0.040
G26     79.9           54.7                5.9 +/-    0.55       7.0 +/-    0.55  0.230 / 0.260
G31     49.0           26.3                4.6 +/-    2.24       8.8 +/-    2.24  0.150 / 0.250