PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/14-02:57:50
G08     293.4          22.1               11.9 +/-    0.97      24.9 +/-    0.97  0.130 / 0.140
G10     16.9           62.7               13.0 +/-    0.40      14.5 +/-    0.40  0.110 / 0.120
G14     231.7          48.3               14.0 +/-    1.43      18.0 +/-    1.43  0.030 / 0.020
G18     317.9          12.9                7.3 +/-    2.34      19.1 +/-    2.34  0.040 / 0.030
G20     68.9           51.0               10.6 +/-    0.74      13.2 +/-    0.74  0.050 / 0.080
G21     148.2          38.3               12.8 +/-    0.63      19.2 +/-    0.63  0.050 / 0.080
G24     54.0           24.5                7.6 +/-    1.87      14.9 +/-    1.87  0.080 / 0.120
G27     252.2          30.7               14.9 +/-    2.93      25.8 +/-    2.93  0.090 / 0.100
G32     249.6          68.6               11.9 +/-    0.56      12.7 +/-    0.56  0.110 / 0.250