PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/07/25-03:42:50
G08     300.9          22.3                6.2 +/-    0.88      12.8 +/-    0.88  0.070 / 0.040
G10     345.3          61.7                5.4 +/-    1.10       6.1 +/-    1.10  0.080 / 0.050
G14     223.0          39.9                8.1 +/-    1.60      11.9 +/-    1.60  0.030 / 0.020
G18     48.2           57.1                6.3 +/-    0.67       7.4 +/-    0.67  0.030 / 0.030
G24     66.7           29.6                5.4 +/-    1.14       9.6 +/-    1.14  0.060 / 0.070
G27     263.0          35.5                8.6 +/-    1.42      13.5 +/-    1.42  0.050 / 0.070
G32     231.6          59.0                6.8 +/-    1.82       7.8 +/-    1.82  0.060 / 0.090