PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/26-12:42:40
G08     310.0          17.9                4.0 +/-    1.90       9.3 +/-    1.90  0.050 / 0.060
G10     335.4          60.5                2.3 +/-    0.43       2.6 +/-    0.43  0.090 / 0.070
G14     219.6          31.1                3.6 +/-    1.96       6.1 +/-    1.96  0.120 / 0.180
G21     136.3          53.0                3.4 +/-    0.58       4.1 +/-    0.58  0.100 / 0.140
G24     72.1           30.1                2.7 +/-    0.86       4.7 +/-    0.86  0.040 / 0.040
G27     270.8          37.1                5.3 +/-    2.71       8.1 +/-    2.71  0.040 / 0.040
G32     225.6          55.3                4.7 +/-    2.50       5.6 +/-    2.50  0.070 / 0.080