PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/26-22:12:50
G05     47.6           19.6                6.4 +/-    1.56      14.2 +/-    1.56  0.210 / 0.380
G13     79.0           35.5               12.6 +/-    1.32      19.9 +/-    1.32  0.190 / 0.390
G15     128.7          50.3               12.5 +/-    0.69      15.7 +/-    0.69  0.060 / 0.070
G16     317.2          10.9                0.9 +/-   20.25       2.4 +/-   20.25  0.090 / 0.080
G20     245.3          34.0               11.3 +/-    1.50      18.3 +/-    1.50  0.080 / 0.100
G21     310.0          44.1               10.7 +/-    1.00      14.6 +/-    1.00  0.090 / 0.120
G25     201.7          14.4               12.4 +/-    2.70      31.4 +/-    2.70  0.030 / 0.060
G26     291.3          20.2                8.7 +/-    2.48      19.1 +/-    2.48  0.030 / 0.040
G29     148.4          75.7               11.5 +/-    0.61      11.9 +/-    0.61  0.220 / 0.430