PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/03-22:27:40
G02     45.8           44.6                8.6 +/-    0.65      11.6 +/-    0.65  0.030 / 0.050
G05     96.7           69.3               10.0 +/-    0.58      10.6 +/-    0.58  0.030 / 0.040
G12     186.1          48.5               12.1 +/-    0.72      15.6 +/-    0.72  0.040 / 0.020
G25     267.5          58.5               10.3 +/-    1.60      11.9 +/-    1.60  0.030 / 0.020
G29     317.1          38.9                9.0 +/-    0.94      13.3 +/-    0.94  0.030 / 0.060