PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/24-18:12:40
G07     309.1          49.3               10.0 +/-    1.65      12.7 +/-    1.65  0.040 / 0.050
G08     128.4          39.1               12.8 +/-    0.93      18.9 +/-    0.93  0.050 / 0.060
G09     310.5          75.5               10.3 +/-    0.82      10.6 +/-    0.82  0.050 / 0.050
G16     41.9           31.1                8.1 +/-    2.06      13.8 +/-    2.06  0.060 / 0.050
G23     142.0          67.3               11.5 +/-    0.57      12.3 +/-    0.57  0.040 / 0.020
G27     85.2           37.6               10.3 +/-    0.69      15.7 +/-    0.69  0.040 / 0.020
G30     284.2          21.3               10.8 +/-    1.84      23.1 +/-    1.84  0.100 / 0.190