PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/06-09:27:40
G10     267.4          39.2                4.3 +/-    0.60       6.3 +/-    0.60  0.180 / 0.300
G13     41.6           17.6                2.5 +/-    2.90       5.8 +/-    2.90  0.190 / 0.330
G15     58.3           47.9                4.3 +/-    0.80       5.5 +/-    0.80  0.040 / 0.030
G16     284.3          11.5               -0.1 +/-    1.86      -0.2 +/-    1.86  0.040 / 0.030
G20     298.5          60.5                3.8 +/-    0.66       4.3 +/-    0.66  0.140 / 0.220
G21     16.6           73.1                4.9 +/-    0.84       5.1 +/-    0.84  0.180 / 0.240
G24     118.4          14.5                6.2 +/-    2.00      15.7 +/-    2.00  0.050 / 0.060
G27     319.6          17.1                2.8 +/-    4.13       6.5 +/-    4.13  0.060 / 0.070
G29     165.1          26.5                4.9 +/-    1.06       9.3 +/-    1.06  0.030 / 0.030