PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/12-02:42:40
G02     60.7           31.3                9.1 +/-    2.08      15.4 +/-    2.08  0.080 / 0.100
G05     56.2           59.1               10.7 +/-    0.51      12.2 +/-    0.51  0.090 / 0.080
G12     184.5          31.7               13.7 +/-    1.19      23.2 +/-    1.19  0.030 / 0.030
G13     127.9          15.6               12.6 +/-    2.02      31.0 +/-    2.02  0.030 / 0.040
G15     163.3          12.7               14.1 +/-    3.02      37.0 +/-    3.02  0.130 / 0.350
G20     218.4          18.4               17.2 +/-    2.75      39.3 +/-    2.75  0.100 / 0.210
G21     271.7          17.4               13.8 +/-    2.19      32.5 +/-    2.19  0.120 / 0.450
G25     237.1          51.5               13.3 +/-    2.71      16.4 +/-    2.71  0.160 / 0.390
G29     328.2          54.5               11.7 +/-    0.93      14.0 +/-    0.93  0.090 / 0.100