PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/15-15:13:00
G01     272.9          41.1               10.8 +/-    2.39      15.4 +/-    2.39  0.060 / 0.060
G10     128.9          18.4                9.4 +/-    4.30      21.4 +/-    4.30  0.050 / 0.060
G11     254.7          21.0                6.8 +/-    7.62      14.6 +/-    7.62  0.030 / 0.030
G14     38.9           52.6                9.9 +/-    2.25      12.1 +/-    2.25  0.030 / 0.030
G22     314.5          53.4               10.7 +/-    0.95      13.0 +/-    0.95  0.110 / 0.170
G23     275.1          11.6                7.0 +/-   10.58      18.8 +/-   10.58  0.120 / 0.200
G25     54.4           17.6                8.0 +/-    6.43      18.6 +/-    6.43  0.070 / 0.050
G26     147.7          24.4               12.5 +/-    1.19      24.7 +/-    1.19  0.050 / 0.050
G31     56.9           73.8                9.8 +/-    0.32      10.1 +/-    0.32  0.130 / 0.120
G32     63.7           32.4                6.6 +/-    1.40      11.1 +/-    1.40  0.160 / 0.150