PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/12-15:43:10
G01     317.0          22.0                5.8 +/-    2.00      12.1 +/-    2.00  0.040 / 0.070
G08     255.2          10.5                7.5 +/-    2.54      20.7 +/-    2.54  0.030 / 0.070
G10     87.2           50.7                8.0 +/-    0.75      10.0 +/-    0.75  0.130 / 0.370
G11     300.6          23.6                7.7 +/-    1.34      15.5 +/-    1.34  0.140 / 0.450
G14     309.5          70.6                7.2 +/-    0.96       7.5 +/-    0.96  0.130 / 0.370
G22     303.5          15.3                6.9 +/-    1.01      17.1 +/-    1.01  0.130 / 0.360
G25     97.3           10.8               -4.5 +/-   35.04     -12.3 +/-   35.04  0.050 / 0.050
G31     174.2          48.3                8.9 +/-    1.07      11.5 +/-    1.07  0.060 / 0.060
G32     17.7           63.2                6.3 +/-    0.44       6.9 +/-    0.44  0.120 / 0.460