PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/04-21:42:30
G10     293.0          51.2               12.7 +/-    2.52      15.8 +/-    2.52  0.040 / 0.050
G15     47.1           32.6               10.2 +/-    1.29      17.0 +/-    1.29  0.040 / 0.040
G20     344.5          65.3               13.5 +/-    0.63      14.7 +/-    0.63  0.100 / 0.070
G21     78.0           76.6               14.2 +/-    0.47      14.6 +/-    0.47  0.100 / 0.130
G24     103.4          25.0               15.7 +/-    1.67      30.7 +/-    1.67  0.130 / 0.120
G27     305.2          32.2               12.7 +/-    2.10      21.3 +/-    2.10  0.070 / 0.130
G29     168.0          11.7               20.3 +/-    4.05      54.6 +/-    4.05  0.090 / 0.080
G32     208.5          28.0               19.0 +/-    2.19      34.7 +/-    2.19  0.110 / 0.060