PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/11-23:27:40
G10     297.4          52.6               10.9 +/-    1.06      13.3 +/-    1.06  0.060 / 0.090
G15     46.3           29.1                5.9 +/-    0.75      10.6 +/-    0.75  0.050 / 0.090
G20     350.2          65.2                7.6 +/-    0.97       8.3 +/-    0.97  0.040 / 0.050
G21     90.3           75.3               10.5 +/-    0.51      10.8 +/-    0.51  0.040 / 0.060
G24     99.9           26.2               10.6 +/-    0.90      20.1 +/-    0.90  0.040 / 0.040
G27     302.3          33.6               11.2 +/-    1.45      18.2 +/-    1.45  0.040 / 0.050
G32     209.8          30.4               12.5 +/-    2.01      21.8 +/-    2.01  0.070 / 0.130