PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/14-16:58:00
G01     281.5          41.3               13.8 +/-    1.13      19.7 +/-    1.13  0.050 / 0.060
G03     314.6          25.6                7.4 +/-    1.07      14.2 +/-    1.07  0.050 / 0.070
G10     124.9          23.5               11.3 +/-    0.99      22.8 +/-    0.99  0.080 / 0.150
G11     260.7          23.5               11.2 +/-    3.26      22.7 +/-    3.26  0.060 / 0.120
G14     32.0           55.6                7.8 +/-    0.96       9.3 +/-    0.96  0.050 / 0.050
G22     314.7          46.1                8.8 +/-    0.68      11.7 +/-    0.68  0.040 / 0.060
G25     60.3           18.7                7.3 +/-    2.96      16.7 +/-    2.96  0.080 / 0.070
G26     152.2          19.0               11.7 +/-    1.07      26.3 +/-    1.07  0.080 / 0.060
G31     82.0           79.0               10.1 +/-    0.31      10.2 +/-    0.31  0.020 / 0.020
G32     57.9           36.8                8.1 +/-    1.25      12.5 +/-    1.25  0.020 / 0.020