PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/19-17:13:00
G01     318.6          18.7                7.5 +/-    2.53      17.0 +/-    2.53  0.170 / 0.350
G08     257.8          12.6               10.3 +/-    4.14      27.2 +/-    4.14  0.160 / 0.370
G10     80.9           53.1                7.8 +/-    0.63       9.4 +/-    0.63  0.140 / 0.180
G11     303.6          22.4                6.6 +/-    2.46      13.6 +/-    2.46  0.160 / 0.210
G14     298.4          70.4                8.6 +/-    0.80       9.1 +/-    0.80  0.050 / 0.070
G18     103.6          26.3               10.6 +/-    1.15      20.2 +/-    1.15  0.050 / 0.070
G22     301.2          11.5                5.3 +/-    5.80      14.3 +/-    5.80  0.040 / 0.050
G31     176.1          43.0               12.2 +/-    1.00      16.9 +/-    1.00  0.040 / 0.050
G32     9.6            66.6                7.8 +/-    0.56       8.4 +/-    0.56  0.040 / 0.030