PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/31-16:58:00
G02     347.1          76.6                9.1 +/-    0.64       9.3 +/-    0.64  0.040 / 0.080
G05     162.9          37.9               11.8 +/-    1.11      17.7 +/-    1.11  0.040 / 0.080
G06     43.7           33.3                8.3 +/-    0.64      13.7 +/-    0.64  0.210 / 0.340
G12     286.2          81.1                9.3 +/-    0.79       9.4 +/-    0.79  0.170 / 0.460
G19     77.5           27.5                8.8 +/-    0.70      16.2 +/-    0.70  0.040 / 0.030
G24     222.7          18.6               11.2 +/-    2.74      25.5 +/-    2.74  0.020 / 0.030
G25     315.9          34.5               10.0 +/-    1.98      16.0 +/-    1.98  0.060 / 0.080
G29     289.1          10.5                3.6 +/-   25.48       9.9 +/-   25.48  0.060 / 0.080