PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/11-06:58:00
G08     301.1          21.9                4.1 +/-    1.13       8.7 +/-    1.13  0.030 / 0.030
G10     354.4          62.3                4.6 +/-    0.64       5.1 +/-    0.64  0.030 / 0.040
G14     223.6          40.4                8.8 +/-    0.61      12.7 +/-    0.61  0.060 / 0.080
G20     54.7           55.9                6.4 +/-    0.40       7.6 +/-    0.40  0.060 / 0.100
G21     142.3          46.7                9.2 +/-    0.95      12.1 +/-    0.95  0.090 / 0.120
G24     62.6           27.8                4.6 +/-    0.75       8.5 +/-    0.75  0.070 / 0.120
G27     264.3          35.0                8.5 +/-    1.45      13.5 +/-    1.45  0.070 / 0.120
G32     232.3          57.4                9.0 +/-    0.64      10.5 +/-    0.64  0.060 / 0.120