PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/11-01:27:40
G10     290.1          50.0                7.9 +/-    3.32      10.0 +/-    3.32  0.060 / 0.110
G15     47.3           32.8                6.7 +/-    1.25      11.1 +/-    1.25  0.080 / 0.090
G20     337.2          65.0                8.4 +/-    0.61       9.2 +/-    0.61  0.130 / 0.090
G21     70.8           76.9                9.4 +/-    0.43       9.6 +/-    0.43  0.120 / 0.150
G24     104.5          24.0                9.2 +/-    1.45      18.3 +/-    1.45  0.040 / 0.030
G27     307.3          30.9                7.6 +/-    0.73      13.0 +/-    0.73  0.040 / 0.030
G29     167.5          12.3                8.0 +/-    2.96      21.3 +/-    2.96  0.080 / 0.090
G32     208.3          24.6               11.0 +/-    1.21      21.7 +/-    1.21  0.080 / 0.090