PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/16-17:43:00
G01     250.1          34.7               12.2 +/-    1.11      19.4 +/-    1.11  0.040 / 0.030
G03     315.5          47.9               10.3 +/-    1.33      13.4 +/-    1.33  0.040 / 0.030
G11     239.0          12.3               10.9 +/-    2.01      28.9 +/-    2.01  0.070 / 0.350
G14     60.3           41.4                9.6 +/-    1.09      13.6 +/-    1.09  0.110 / 0.340
G22     302.1          68.5               11.6 +/-    0.66      12.4 +/-    0.66  0.030 / 0.050
G23     288.0          21.1               10.0 +/-    0.97      21.5 +/-    0.97  0.030 / 0.050
G25     39.6           10.1                8.3 +/-    3.02      23.2 +/-    3.02  0.050 / 0.080
G26     134.7          39.1               14.7 +/-    0.76      21.8 +/-    0.76  0.040 / 0.090
G31     40.7           56.8               10.2 +/-    0.57      11.9 +/-    0.57  0.100 / 0.200
G32     78.6           21.6               10.9 +/-    1.29      23.1 +/-    1.29  0.170 / 0.310