PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/26-18:58:00
G01     255.8          37.2               12.0 +/-    0.69      18.3 +/-    0.69  0.040 / 0.040
G03     316.4          42.0                9.7 +/-    2.16      13.7 +/-    2.16  0.040 / 0.040
G11     242.3          14.8               10.6 +/-    1.51      26.6 +/-    1.51  0.090 / 0.250
G14     55.6           43.8               10.6 +/-    0.51      14.5 +/-    0.51  0.080 / 0.290
G22     308.6          63.2               10.6 +/-    0.95      11.7 +/-    0.95  0.100 / 0.140
G23     284.0          17.5               10.9 +/-    2.47      25.5 +/-    2.47  0.120 / 0.150
G25     42.9           12.5                8.2 +/-    1.05      21.6 +/-    1.05  0.100 / 0.080
G26     139.8          34.7               13.1 +/-    0.73      20.9 +/-    0.73  0.070 / 0.110
G31     42.1           62.6                9.9 +/-    0.76      11.0 +/-    0.76  0.030 / 0.050
G32     74.3           25.0               11.7 +/-    0.64      22.8 +/-    0.64  0.030 / 0.040