PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/31-21:42:40
G01     318.7          19.1                8.0 +/-    2.72      18.0 +/-    2.72  0.100 / 0.000
G08     254.3          12.5                9.0 +/-    2.44      23.9 +/-    2.44  0.120 / 0.430
G10     82.1           51.9                8.0 +/-    0.95       9.9 +/-    0.95  0.170 / 0.210
G11     300.8          24.4                8.9 +/-    1.52      17.6 +/-    1.52  0.230 / 0.300
G14     301.3          71.0                9.8 +/-    0.41      10.2 +/-    0.41  0.040 / 0.040
G18     301.9          43.1                8.9 +/-    1.00      12.3 +/-    1.00  0.040 / 0.060
G20     106.5          28.1                8.2 +/-    1.32      15.0 +/-    1.32  0.230 / 0.500
G22     301.3          10.5               -1.0 +/-    8.16      -2.8 +/-    8.16  0.190 / 0.420
G31     176.8          42.4               12.0 +/-    1.42      16.8 +/-    1.42  0.080 / 0.210
G32     10.7           66.4                6.6 +/-    0.88       7.1 +/-    0.88  0.100 / 0.250