PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/13-02:42:50
G08     302.1          20.9                5.9 +/-    2.04      12.6 +/-    2.04  0.070 / 0.100
G10     357.9          62.5                9.3 +/-    0.79      10.4 +/-    0.79  0.060 / 0.090
G14     224.4          40.5               10.2 +/-    1.67      14.8 +/-    1.67  0.030 / 0.030
G20     56.1           55.6                9.5 +/-    0.52      11.3 +/-    0.52  0.030 / 0.030
G21     143.4          47.0               10.5 +/-    1.08      13.8 +/-    1.08  0.050 / 0.070
G24     62.3           28.0                6.8 +/-    0.95      12.5 +/-    0.95  0.050 / 0.060
G27     261.9          34.7               10.0 +/-    1.74      15.9 +/-    1.74  0.080 / 0.130
G32     234.5          61.2                8.7 +/-    1.45       9.8 +/-    1.45  0.120 / 0.110