PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/14-01:12:30
G02     30.3           57.9                9.0 +/-    0.61      10.4 +/-    0.61  0.020 / 0.040
G05     142.6          59.2               11.6 +/-    0.90      13.2 +/-    0.90  0.020 / 0.030
G06     51.9           18.3                6.7 +/-    1.35      15.4 +/-    1.35  0.030 / 0.040
G12     204.4          71.8               10.3 +/-    0.89      10.8 +/-    0.89  0.030 / 0.040
G19     96.4           13.4                9.5 +/-    2.57      24.5 +/-    2.57  0.060 / 0.060
G25     302.9          50.1                8.3 +/-    0.61      10.5 +/-    0.61  0.040 / 0.060
G29     304.2          24.3                8.8 +/-    1.29      17.5 +/-    1.29  0.050 / 0.040