PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/06-21:57:20
G02     38.9           50.5               11.0 +/-    0.48      13.8 +/-    0.48  0.030 / 0.040
G05     121.3          67.4               10.5 +/-    0.43      11.3 +/-    0.43  0.030 / 0.030
G12     188.6          57.4               11.3 +/-    1.43      13.2 +/-    1.43  0.050 / 0.060
G25     283.9          57.3               11.3 +/-    1.31      13.2 +/-    1.31  0.050 / 0.050
G29     311.9          32.5               10.0 +/-    1.56      16.6 +/-    1.56  0.040 / 0.060