PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/27-09:57:30
G08     301.8          22.1                5.8 +/-    0.98      12.1 +/-    0.98  0.040 / 0.050
G10     349.8          62.1                5.7 +/-    0.44       6.4 +/-    0.44  0.050 / 0.070
G14     222.3          38.9                8.5 +/-    1.66      12.5 +/-    1.66  0.110 / 0.090
G20     51.8           56.8                6.9 +/-    0.66       8.1 +/-    0.66  0.090 / 0.130
G21     140.7          46.7                8.2 +/-    0.43      10.8 +/-    0.43  0.020 / 0.020
G24     63.7           27.8                3.7 +/-    0.82       6.8 +/-    0.82  0.030 / 0.020
G27     267.3          35.5                9.2 +/-    2.23      14.5 +/-    2.23  0.080 / 0.070
G32     230.0          54.7                7.9 +/-    2.29       9.4 +/-    2.29  0.070 / 0.070