PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/24-18:12:30
G01     225.4          16.0               13.4 +/-    2.71      32.5 +/-    2.71  0.040 / 0.030
G03     274.7          71.0               10.8 +/-    0.62      11.4 +/-    0.62  0.040 / 0.030
G14     87.4           24.7               12.1 +/-    3.34      23.8 +/-    3.34  0.110 / 0.170
G16     146.0          46.6               14.2 +/-    0.86      18.7 +/-    0.86  0.130 / 0.180
G22     207.9          68.6               12.0 +/-    0.27      12.7 +/-    0.27  0.090 / 0.100
G23     309.5          39.9               10.4 +/-    1.02      15.2 +/-    1.02  0.080 / 0.080
G26     93.3           54.2               13.1 +/-    1.02      15.7 +/-    1.02  0.040 / 0.050
G31     46.0           30.1                8.7 +/-    1.43      15.3 +/-    1.43  0.030 / 0.060