PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/17-16:58:10
G01     273.1          41.1                9.9 +/-    1.08      14.2 +/-    1.08  0.030 / 0.030
G03     315.9          31.0               11.0 +/-    3.07      18.8 +/-    3.07  0.030 / 0.030
G10     128.8          18.6               10.7 +/-    1.48      24.4 +/-    1.48  0.060 / 0.070
G11     254.9          21.1               11.5 +/-    4.82      24.7 +/-    4.82  0.050 / 0.050
G14     39.8           52.1                7.6 +/-    0.68       9.4 +/-    0.68  0.060 / 0.110
G22     314.4          51.8                8.1 +/-    1.78      10.0 +/-    1.78  0.070 / 0.110
G25     54.4           17.6                7.3 +/-    0.69      17.0 +/-    0.69  0.040 / 0.070
G26     148.4          24.0               14.2 +/-    1.29      28.4 +/-    1.29  0.040 / 0.080
G31     58.2           74.7                9.9 +/-    0.94      10.3 +/-    0.94  0.050 / 0.080
G32     63.3           32.9                8.1 +/-    1.38      13.4 +/-    1.38  0.060 / 0.090