PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/09-01:42:40
G10     294.5          51.5               10.4 +/-    2.82      12.9 +/-    2.82  0.060 / 0.090
G15     46.5           30.0                7.9 +/-    1.81      13.8 +/-    1.81  0.050 / 0.090
G20     344.7          65.2               10.7 +/-    0.89      11.7 +/-    0.89  0.100 / 0.100
G21     84.0           75.9               11.1 +/-    0.86      11.4 +/-    0.86  0.130 / 0.060
G24     101.3          25.4               10.7 +/-    1.21      20.7 +/-    1.21  0.040 / 0.040
G27     304.4          32.5                7.3 +/-    3.04      12.1 +/-    3.04  0.040 / 0.040
G32     209.4          27.5               12.3 +/-    1.34      22.6 +/-    1.34  0.060 / 0.140