PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/03-21:42:50
G02     27.5           59.9                9.0 +/-    0.42      10.2 +/-    0.42  0.050 / 0.040
G05     145.3          58.3               13.0 +/-    1.04      15.0 +/-    1.04  0.050 / 0.040
G06     51.8           18.0                6.7 +/-    0.71      15.6 +/-    0.71  0.040 / 0.050
G12     199.1          71.2               10.7 +/-    0.60      11.2 +/-    0.60  0.040 / 0.050
G19     95.4           14.7                9.0 +/-    1.63      22.5 +/-    1.63  0.040 / 0.040
G25     303.0          50.3               10.2 +/-    0.71      12.8 +/-    0.71  0.040 / 0.040
G29     303.5          23.5                9.4 +/-    1.64      19.0 +/-    1.64  0.040 / 0.070