PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/02-21:42:30
G02     25.6           61.3                9.0 +/-    0.68      10.1 +/-    0.68  0.040 / 0.040
G05     147.6          56.6               10.6 +/-    0.63      12.5 +/-    0.63  0.040 / 0.040
G06     50.9           19.4                7.5 +/-    1.41      16.6 +/-    1.41  0.060 / 0.070
G12     202.5          73.1                9.4 +/-    1.40       9.8 +/-    1.40  0.060 / 0.070
G19     93.9           15.8                9.6 +/-    1.61      23.4 +/-    1.61  0.030 / 0.030
G25     305.0          48.9                9.1 +/-    0.75      11.7 +/-    0.75  0.030 / 0.030
G29     302.2          22.2                9.4 +/-    1.84      19.7 +/-    1.84  0.050 / 0.050