PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/07-06:43:10
G02     70.9           23.0                3.5 +/-    1.18       7.1 +/-    1.18  0.050 / 0.090
G05     46.6           47.6                3.4 +/-    0.53       4.4 +/-    0.53  0.050 / 0.070
G12     183.3          21.0                6.3 +/-    1.29      13.6 +/-    1.29  0.080 / 0.120
G13     115.8          23.9                8.5 +/-    2.29      17.0 +/-    2.29  0.050 / 0.120
G15     155.6          23.9                7.9 +/-    1.17      15.8 +/-    1.17  0.040 / 0.040
G21     284.6          28.7                4.6 +/-    1.19       8.3 +/-    1.19  0.030 / 0.040
G25     218.0          40.2                8.8 +/-    0.76      12.8 +/-    0.76  0.030 / 0.040
G29     348.5          72.7                5.5 +/-    0.65       5.7 +/-    0.65  0.030 / 0.040