PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/27-20:57:40
G08     313.5          16.5               18.3 +/-    1.82      43.9 +/-    1.82  0.060 / 0.090
G10     330.7          60.0               18.9 +/-    0.70      21.5 +/-    0.70  0.060 / 0.090
G14     216.5          25.7               25.6 +/-    1.62      49.2 +/-    1.62  0.030 / 0.040
G15     46.6           12.1               13.8 +/-    1.97      36.8 +/-    1.97  0.030 / 0.060
G20     35.5           60.5               17.5 +/-    0.34      19.8 +/-    0.34  0.100 / 0.280
G21     131.6          60.2               19.4 +/-    1.08      22.0 +/-    1.08  0.100 / 0.230
G24     78.5           30.7               17.9 +/-    0.43      30.9 +/-    0.43  0.150 / 0.240
G27     278.5          38.0               21.1 +/-    1.28      31.8 +/-    1.28  0.120 / 0.260
G32     220.4          50.6               24.2 +/-    0.71      30.4 +/-    0.71  0.080 / 0.150