PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/05-00:28:00
G05     46.2           24.5                8.5 +/-    2.65      16.8 +/-    2.65  0.060 / 0.090
G13     88.2           35.7               11.6 +/-    1.15      18.1 +/-    1.15  0.060 / 0.090
G15     139.2          44.7               11.6 +/-    0.48      15.7 +/-    0.48  0.080 / 0.110
G20     238.7          22.1               12.2 +/-    1.98      25.6 +/-    1.98  0.070 / 0.080
G21     303.8          40.2               10.3 +/-    1.56      14.9 +/-    1.56  0.030 / 0.020
G25     204.3          18.6               11.7 +/-    2.96      26.7 +/-    2.96  0.020 / 0.020
G26     295.8          20.9                9.9 +/-    1.36      21.4 +/-    1.36  0.050 / 0.040
G29     138.0          84.4               10.0 +/-    0.43      10.1 +/-    0.43  0.040 / 0.040