PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/30-17:57:50
G01     282.3          41.2               11.5 +/-    3.70      16.4 +/-    3.70  0.040 / 0.050
G03     314.3          24.3                6.6 +/-    1.16      13.1 +/-    1.16  0.050 / 0.060
G10     124.5          24.0                9.7 +/-    1.73      19.3 +/-    1.73  0.040 / 0.050
G11     260.8          23.8                9.1 +/-    4.25      18.2 +/-    4.25  0.050 / 0.050
G14     31.8           55.7                6.9 +/-    1.08       8.2 +/-    1.08  0.050 / 0.140
G22     314.6          44.9                6.9 +/-    0.88       9.3 +/-    0.88  0.070 / 0.160
G25     60.7           18.8                6.9 +/-    2.46      15.8 +/-    2.46  0.020 / 0.020
G26     153.0          18.3               10.4 +/-    2.07      24.0 +/-    2.07  0.020 / 0.020
G31     87.7           79.6                7.4 +/-    0.40       7.5 +/-    0.40  0.080 / 0.070
G32     57.2           37.5                8.1 +/-    1.09      12.2 +/-    1.09  0.080 / 0.080