PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/26-03:12:30
G02     68.5           24.9                8.2 +/-    1.47      16.0 +/-    1.47  0.080 / 0.150
G05     47.7           49.9                8.0 +/-    0.43      10.1 +/-    0.43  0.080 / 0.140
G12     183.9          23.9                9.1 +/-    1.69      18.3 +/-    1.69  0.080 / 0.170
G13     118.1          22.1                8.0 +/-    1.47      16.8 +/-    1.47  0.110 / 0.160
G15     156.8          21.7                8.4 +/-    1.64      17.7 +/-    1.64  0.030 / 0.040
G21     281.1          25.1               11.0 +/-    1.60      21.5 +/-    1.60  0.040 / 0.030
G25     222.5          43.3               10.8 +/-    2.13      14.9 +/-    2.13  0.080 / 0.210
G29     342.7          68.9               11.8 +/-    0.76      12.6 +/-    0.76  0.090 / 0.190