PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/06-06:57:50
G08     309.5          19.1                3.6 +/-    1.02       8.1 +/-    1.02  0.040 / 0.030
G10     335.2          60.5                2.9 +/-    0.60       3.3 +/-    0.60  0.040 / 0.030
G14     217.8          31.7                4.4 +/-    2.25       7.4 +/-    2.25  0.060 / 0.040
G20     38.7           60.1                3.1 +/-    0.53       3.5 +/-    0.53  0.050 / 0.040
G21     134.8          55.5                5.2 +/-    0.64       6.1 +/-    0.64  0.070 / 0.070
G24     72.7           29.6                4.0 +/-    1.78       7.1 +/-    1.78  0.070 / 0.080
G27     276.1          37.2                3.1 +/-    1.70       4.8 +/-    1.70  0.100 / 0.080
G32     223.2          48.4                4.7 +/-    2.28       6.1 +/-    2.28  0.060 / 0.070