PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/21-21:43:10
G03     316.1          44.0                9.3 +/-    2.86      12.8 +/-    2.86  0.090 / 0.300
G11     239.2          10.4               14.3 +/-    4.64      39.5 +/-    4.64  0.090 / 0.310
G14     57.5           44.0                8.9 +/-    0.68      12.2 +/-    0.68  0.040 / 0.080
G16     160.3          20.5                4.0 +/-   17.43       8.8 +/-   17.43  0.050 / 0.090
G22     302.9          66.1                6.1 +/-    1.89       6.6 +/-    1.89  0.030 / 0.050
G23     287.9          20.4               12.8 +/-    1.75      27.8 +/-    1.75  0.030 / 0.050
G26     134.7          39.5               11.9 +/-    1.47      17.4 +/-    1.47  0.050 / 0.070
G31     41.5           56.5                8.3 +/-    1.67       9.8 +/-    1.67  0.080 / 0.080
G32     79.0           20.5               11.2 +/-    1.98      24.3 +/-    1.98  0.060 / 0.080