PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/27-03:27:40
G02     204.3          42.3                7.1 +/-    1.15      10.0 +/-    1.15  0.040 / 0.030
G06     155.1          73.7                4.4 +/-    0.66       4.6 +/-    0.66  0.040 / 0.030
G12     310.2          18.4                3.7 +/-    1.01       8.5 +/-    1.01  0.090 / 0.160
G17     39.4           46.9                2.5 +/-    0.65       3.3 +/-    0.65  0.100 / 0.150
G19     12.7           61.7                3.1 +/-    0.97       3.5 +/-    0.97  0.030 / 0.050
G24     292.3          40.0                3.3 +/-    1.89       4.8 +/-    1.89  0.030 / 0.060
G28     108.0          26.9                6.6 +/-    2.41      12.4 +/-    2.41  0.100 / 0.150