PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/03-23:27:50
G01     233.6          23.7                8.9 +/-    1.89      18.0 +/-    1.89  0.030 / 0.020
G03     304.8          60.2                6.1 +/-    1.02       6.9 +/-    1.02  0.030 / 0.020
G14     78.5           29.5                7.0 +/-    0.64      12.4 +/-    0.64  0.080 / 0.100
G16     158.1          33.3               10.1 +/-    1.72      16.5 +/-    1.72  0.080 / 0.120
G22     253.0          75.4                7.6 +/-    0.80       7.8 +/-    0.80  0.040 / 0.080
G23     299.8          30.0                7.9 +/-    1.07      13.9 +/-    1.07  0.030 / 0.060
G26     118.2          50.8               10.6 +/-    0.64      13.2 +/-    0.64  0.070 / 0.220
G31     41.2           43.2                6.2 +/-    1.29       8.5 +/-    1.29  0.110 / 0.200
G32     91.7           12.9                7.4 +/-    2.42      19.5 +/-    2.42  0.230 / 0.170