PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/11-02:12:00
G02     48.2           42.0                7.2 +/-    1.06      10.1 +/-    1.06  0.040 / 0.040
G05     89.7           68.5                8.8 +/-    0.77       9.4 +/-    0.77  0.040 / 0.040
G12     188.1          48.7               10.8 +/-    0.85      13.8 +/-    0.85  0.030 / 0.030
G25     266.1          58.0               10.7 +/-    0.75      12.4 +/-    0.75  0.020 / 0.030
G29     318.3          40.5                9.4 +/-    1.75      13.5 +/-    1.75  0.040 / 0.040