PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/08-07:27:40
G02     26.1           61.9                4.2 +/-    0.84       4.7 +/-    0.84  0.030 / 0.040
G05     150.7          53.2                7.7 +/-    0.58       9.3 +/-    0.58  0.030 / 0.040
G06     47.9           26.4                2.5 +/-    2.22       4.7 +/-    2.22  0.130 / 0.110
G12     233.0          77.7                6.1 +/-    0.41       6.2 +/-    0.41  0.140 / 0.120
G19     92.1           15.6                5.1 +/-    1.38      12.6 +/-    1.38  0.020 / 0.020
G20     199.8          12.4                1.3 +/-    6.06       3.3 +/-    6.06  0.020 / 0.030
G25     309.0          45.3                3.9 +/-    1.61       5.2 +/-    1.61  0.120 / 0.470
G29     300.9          22.2                3.3 +/-    1.38       6.9 +/-    1.38  0.180 / 0.430