PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/08-07:28:10
G02     26.6           61.5                4.8 +/-    0.26       5.4 +/-    0.26  0.160 / 0.410
G05     150.3          53.7                8.4 +/-    0.99      10.1 +/-    0.99  0.100 / 0.450
G06     48.1           26.0                4.0 +/-    0.69       7.6 +/-    0.69  0.040 / 0.040
G12     230.9          77.4                5.5 +/-    0.51       5.6 +/-    0.51  0.040 / 0.040
G19     92.5           15.3                4.4 +/-    1.22      11.0 +/-    1.22  0.020 / 0.030
G20     199.9          12.8                1.3 +/-   10.04       3.4 +/-   10.04  0.020 / 0.030
G25     308.6          45.6                3.0 +/-    2.46       3.9 +/-    2.46  0.040 / 0.050
G29     301.2          22.5                3.7 +/-    0.90       7.6 +/-    0.90  0.030 / 0.040