PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/02-22:12:20
G02     38.5           50.9                9.1 +/-    0.97      11.3 +/-    0.97  0.030 / 0.030
G05     122.7          67.1               10.0 +/-    0.59      10.7 +/-    0.59  0.030 / 0.040
G06     58.1           9.5                 7.9 +/-    1.72      22.4 +/-    1.72  0.020 / 0.030
G12     189.1          58.2               10.0 +/-    0.59      11.5 +/-    0.59  0.030 / 0.030
G25     285.2          57.0                7.4 +/-    4.33       8.6 +/-    4.33  0.060 / 0.080
G29     311.5          32.1                8.3 +/-    1.89      14.0 +/-    1.89  0.070 / 0.080