PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/18-19:27:30
G08     314.2          16.3               10.4 +/-    2.52      25.0 +/-    2.52  0.060 / 0.080
G10     327.3          59.5               10.7 +/-    0.75      12.2 +/-    0.75  0.060 / 0.090
G14     215.8          23.2               12.5 +/-    1.43      25.5 +/-    1.43  0.040 / 0.060
G15     46.3           12.6                7.4 +/-    1.56      19.3 +/-    1.56  0.040 / 0.050
G20     33.1           60.9                8.8 +/-    0.58      10.0 +/-    0.58  0.090 / 0.270
G21     129.4          61.6               12.0 +/-    0.98      13.4 +/-    0.98  0.080 / 0.330
G24     80.8           30.7                9.9 +/-    0.69      17.0 +/-    0.69  0.070 / 0.110
G27     280.8          38.2                8.7 +/-    0.98      13.0 +/-    0.98  0.070 / 0.120
G32     218.9          49.2               10.3 +/-    2.22      13.1 +/-    2.22  0.160 / 0.330