PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/30-16:58:00
G10     262.2          36.9               11.9 +/-    1.11      18.3 +/-    1.11  0.090 / 0.230
G13     44.0           20.7               10.9 +/-    2.00      23.6 +/-    2.00  0.110 / 0.260
G15     63.3           50.6               10.1 +/-    0.99      12.6 +/-    0.99  0.170 / 0.370
G16     282.9          14.2                9.5 +/-    2.13      24.2 +/-    2.13  0.160 / 0.430
G20     292.1          59.5               10.7 +/-    0.78      12.2 +/-    0.78  0.320 / 0.390
G21     352.5          68.2               10.6 +/-    1.11      11.3 +/-    1.11  0.320 / 0.360
G24     126.3          11.1               13.9 +/-    5.43      38.0 +/-    5.43  0.040 / 0.040
G27     320.7          14.8                8.0 +/-    1.93      20.1 +/-    1.93  0.040 / 0.040
G29     166.7          37.7               12.4 +/-    0.93      18.7 +/-    0.93  0.040 / 0.060