PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/24-07:12:40
G02     45.6           44.2                4.5 +/-    2.06       6.1 +/-    2.06  0.030 / 0.020
G05     104.2          68.8                7.6 +/-    0.72       8.1 +/-    0.72  0.030 / 0.020
G12     192.0          55.1                7.5 +/-    0.67       8.9 +/-    0.67  0.030 / 0.040
G20     203.2          33.4                6.7 +/-    1.90      10.9 +/-    1.90  0.040 / 0.040
G25     275.8          57.8                9.0 +/-    2.32      10.4 +/-    2.32  0.090 / 0.140
G29     316.4          38.5                3.2 +/-    0.92       4.8 +/-    0.92  0.110 / 0.110