PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/14-20:13:00
G01     243.0          30.7               10.5 +/-    1.85      18.1 +/-    1.85  0.040 / 0.040
G03     313.0          52.5                7.1 +/-    0.60       8.7 +/-    0.60  0.040 / 0.040
G14     67.9           36.6               10.0 +/-    0.87      15.4 +/-    0.87  0.090 / 0.170
G16     161.1          24.4               12.4 +/-    2.63      24.6 +/-    2.63  0.080 / 0.190
G22     289.5          72.5                8.1 +/-    0.65       8.4 +/-    0.65  0.090 / 0.140
G23     292.5          24.2                8.9 +/-    1.29      17.7 +/-    1.29  0.070 / 0.130
G26     129.2          44.0               12.5 +/-    0.49      17.0 +/-    0.49  0.040 / 0.040
G31     40.1           51.2                6.9 +/-    0.57       8.6 +/-    0.57  0.040 / 0.030
G32     83.8           18.2                8.4 +/-    1.37      19.4 +/-    1.37  0.050 / 0.080