PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/19-19:27:50
G08     312.7          17.2               11.5 +/-    1.78      27.2 +/-    1.78  0.070 / 0.090
G10     330.9          60.0               12.9 +/-    0.59      14.6 +/-    0.59  0.060 / 0.070
G14     216.6          24.9               15.1 +/-    2.88      29.6 +/-    2.88  0.090 / 0.260
G15     46.6           11.1               11.9 +/-    1.04      32.4 +/-    1.04  0.090 / 0.260
G20     36.6           60.1               11.8 +/-    0.56      13.4 +/-    0.56  0.070 / 0.130
G21     131.7          59.9               15.0 +/-    0.71      17.0 +/-    0.71  0.080 / 0.110
G24     78.6           30.7               12.9 +/-    0.66      22.3 +/-    0.66  0.030 / 0.060
G27     278.3          38.1               13.3 +/-    1.43      19.9 +/-    1.43  0.030 / 0.060
G32     220.3          51.0               15.7 +/-    0.76      19.5 +/-    0.76  0.100 / 0.180