PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/17-08:58:00
G10     275.1          43.3                6.6 +/-    1.45       9.1 +/-    1.45  0.030 / 0.040
G13     39.0           12.3                3.9 +/-    2.48      10.2 +/-    2.48  0.040 / 0.040
G15     52.5           42.3                3.6 +/-    0.88       5.1 +/-    0.88  0.210 / 0.490
G20     312.4          63.1                5.9 +/-    0.73       6.6 +/-    0.73  0.300 / 0.390
G21     38.0           75.4                5.9 +/-    0.65       6.1 +/-    0.65  0.100 / 0.310
G24     112.8          18.3                4.7 +/-    1.28      10.8 +/-    1.28  0.430 / 0.390
G27     316.2          22.4                4.2 +/-    1.60       8.8 +/-    1.60  0.050 / 0.040
G29     165.5          19.2                6.3 +/-    1.63      14.2 +/-    1.63  0.050 / 0.060
G32     206.4          11.6               -3.1 +/-   28.81      -8.4 +/-   28.81  0.110 / 0.050