PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/26-16:27:50
G01     269.5          40.7                9.7 +/-    0.81      13.9 +/-    0.81  0.040 / 0.030
G03     316.3          34.0                7.6 +/-    1.01      12.3 +/-    1.01  0.030 / 0.030
G10     130.4          16.4                9.2 +/-    1.53      22.1 +/-    1.53  0.050 / 0.060
G11     252.7          19.9               10.3 +/-    1.50      22.8 +/-    1.50  0.050 / 0.060
G14     42.7           50.8                7.1 +/-    0.69       8.8 +/-    0.69  0.090 / 0.190
G22     313.9          54.7                7.3 +/-    1.14       8.7 +/-    1.14  0.070 / 0.190
G25     52.0           16.9                7.7 +/-    1.21      18.3 +/-    1.21  0.050 / 0.080
G26     146.5          26.3               11.1 +/-    1.14      21.0 +/-    1.14  0.050 / 0.070
G31     52.2           72.0                8.5 +/-    0.62       8.9 +/-    0.62  0.050 / 0.100
G32     65.7           31.0                8.0 +/-    0.82      13.7 +/-    0.82  0.050 / 0.090