PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/16-11:43:10
G01     91.0           30.7                2.8 +/-    0.98       4.8 +/-    0.98  0.080 / 0.120
G07     124.0          44.4                4.5 +/-    1.41       6.2 +/-    1.41  0.080 / 0.140
G11     71.0           41.8                2.7 +/-    0.55       3.8 +/-    0.55  0.050 / 0.060
G13     295.9          36.6                3.7 +/-    0.72       5.8 +/-    0.72  0.050 / 0.060
G17     212.7          47.6                5.0 +/-    1.84       6.5 +/-    1.84  0.050 / 0.080
G18     64.9           24.0                2.5 +/-    1.20       5.0 +/-    1.20  0.050 / 0.090
G19     212.7          26.9                4.9 +/-    1.37       9.2 +/-    1.37  0.040 / 0.050
G28     330.8          61.0                2.7 +/-    1.32       3.0 +/-    1.32  0.040 / 0.050
G30     96.7           77.7                3.5 +/-    0.41       3.6 +/-    0.41  0.060 / 0.140