PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/22-20:13:10
G02     70.4           25.3                8.3 +/-    2.04      16.0 +/-    2.04  0.110 / 0.300
G05     46.4           47.8                8.8 +/-    0.95      11.5 +/-    0.95  0.130 / 0.280
G12     178.7          14.2               10.9 +/-    1.01      27.6 +/-    1.01  0.120 / 0.210
G13     115.0          25.0                9.9 +/-    2.07      19.3 +/-    2.07  0.120 / 0.230
G15     158.7          22.8               11.4 +/-    1.60      23.5 +/-    1.60  0.030 / 0.050
G21     283.1          25.4               11.0 +/-    2.01      21.4 +/-    2.01  0.030 / 0.040
G25     218.5          39.4               10.4 +/-    1.08      15.3 +/-    1.08  0.060 / 0.090
G26     316.8          12.9                9.0 +/-    1.56      23.5 +/-    1.56  0.060 / 0.100
G29     337.1          68.1                8.5 +/-    1.53       9.1 +/-    1.53  0.060 / 0.190