PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/09-16:58:00
G01     293.8          39.3                6.9 +/-    1.23      10.2 +/-    1.23  0.040 / 0.060
G03     311.6          17.6                7.8 +/-    2.03      18.1 +/-    2.03  0.040 / 0.060
G10     117.9          30.9               10.0 +/-    0.69      17.1 +/-    0.69  0.050 / 0.090
G11     270.4          26.2                8.7 +/-    1.24      16.5 +/-    1.24  0.050 / 0.080
G14     18.4           60.8                7.3 +/-    0.67       8.3 +/-    0.67  0.020 / 0.030
G22     313.6          37.5                7.3 +/-    0.99      11.1 +/-    0.99  0.020 / 0.030
G25     69.7           19.0                7.8 +/-    0.62      17.5 +/-    0.62  0.050 / 0.080
G26     157.6          11.7               12.1 +/-    3.05      32.6 +/-    3.05  0.050 / 0.090
G31     137.6          77.7                8.4 +/-    0.64       8.5 +/-    0.64  0.120 / 0.200
G32     49.4           43.1                7.0 +/-    0.33       9.7 +/-    0.33  0.100 / 0.170