PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/29-21:57:30
G02     27.1           60.3                9.0 +/-    0.59      10.2 +/-    0.59  0.040 / 0.020
G05     146.0          57.8               11.1 +/-    0.35      12.8 +/-    0.35  0.030 / 0.030
G06     51.5           18.5                8.1 +/-    2.58      18.6 +/-    2.58  0.050 / 0.040
G12     200.7          72.0               11.2 +/-    0.54      11.7 +/-    0.54  0.040 / 0.040
G19     95.0           15.0                9.5 +/-    1.70      23.6 +/-    1.70  0.130 / 0.230
G25     303.8          49.8                8.5 +/-    3.81      10.7 +/-    3.81  0.090 / 0.220
G29     303.1          23.1                8.5 +/-    1.93      17.4 +/-    1.93  0.180 / 0.120