PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/24-02:58:10
G02     60.7           31.1                7.9 +/-    0.49      13.6 +/-    0.49  0.050 / 0.090
G05     55.8           59.0                8.7 +/-    0.80      10.0 +/-    0.80  0.070 / 0.090
G12     186.1          34.0               11.7 +/-    0.76      18.9 +/-    0.76  0.100 / 0.250
G13     126.4          15.6               10.5 +/-    0.80      25.6 +/-    0.80  0.090 / 0.180
G15     162.3          13.7                7.9 +/-    3.19      20.4 +/-    3.19  0.050 / 0.070
G21     273.0          19.2               11.3 +/-    1.67      25.4 +/-    1.67  0.050 / 0.060
G25     233.9          51.3               11.9 +/-    1.08      14.8 +/-    1.08  0.220 / 0.340
G29     333.5          59.3               10.0 +/-    0.93      11.4 +/-    0.93  0.120 / 0.260