PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/06-19:57:50
G10     311.7          56.5                9.3 +/-    1.90      11.0 +/-    1.90  0.030 / 0.050
G14     212.5          15.7               14.8 +/-    3.45      36.1 +/-    3.45  0.040 / 0.050
G15     45.5           20.5                9.5 +/-    2.72      20.7 +/-    2.72  0.130 / 0.330
G20     14.4           63.8                9.9 +/-    0.30      10.9 +/-    0.30  0.230 / 0.340
G21     115.2          69.3               12.0 +/-    0.76      12.8 +/-    0.76  0.100 / 0.230
G24     91.0           29.3               11.7 +/-    1.50      20.7 +/-    1.50  0.370 / 0.290
G27     292.0          37.1                6.5 +/-    1.90      10.0 +/-    1.90  0.100 / 0.110
G32     213.5          40.3               12.3 +/-    1.30      17.8 +/-    1.30  0.060 / 0.090