PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/02-22:42:10
G02     49.8           41.1                8.8 +/-    1.30      12.6 +/-    1.30  0.020 / 0.030
G05     81.7           68.2                9.5 +/-    0.26      10.2 +/-    0.26  0.020 / 0.030
G12     185.0          43.1               10.6 +/-    1.67      14.6 +/-    1.67  0.040 / 0.050
G25     257.2          57.7               10.2 +/-    0.75      11.9 +/-    0.75  0.040 / 0.050
G29     320.2          43.0               10.2 +/-    1.49      14.1 +/-    1.49  0.050 / 0.070