PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/26-18:27:50
G01     273.7          41.1               11.0 +/-    2.39      15.6 +/-    2.39  0.080 / 0.060
G03     315.6          29.5                9.2 +/-    1.32      16.2 +/-    1.32  0.060 / 0.050
G10     128.6          19.0               10.3 +/-    2.74      23.2 +/-    2.74  0.040 / 0.050
G11     254.5          21.4               10.3 +/-    5.77      22.0 +/-    5.77  0.070 / 0.060
G14     40.0           51.9                9.3 +/-    0.60      11.4 +/-    0.60  0.040 / 0.070
G22     314.4          50.4                9.7 +/-    0.83      12.1 +/-    0.83  0.050 / 0.060
G25     54.6           17.6                9.2 +/-    5.20      21.6 +/-    5.20  0.160 / 0.120
G26     149.4          23.3               10.9 +/-    0.88      22.2 +/-    0.88  0.160 / 0.230
G31     60.5           75.8                9.2 +/-    0.50       9.5 +/-    0.50  0.030 / 0.020
G32     62.6           33.5                8.8 +/-    2.07      14.4 +/-    2.07  0.020 / 0.020