PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/17-12:42:50
G02     36.1           52.7                3.9 +/-    0.34       4.7 +/-    0.34  0.050 / 0.050
G05     136.9          65.1                6.8 +/-    0.91       7.4 +/-    0.91  0.030 / 0.050
G06     56.1           12.8                1.8 +/-    2.00       4.8 +/-    2.00  0.030 / 0.040
G12     193.4          62.6                6.2 +/-    1.48       6.8 +/-    1.48  0.030 / 0.040
G25     282.0          59.6                5.0 +/-    0.66       5.7 +/-    0.66  0.030 / 0.040
G29     310.9          32.0                3.7 +/-    0.83       6.2 +/-    0.83  0.040 / 0.040