PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/12-08:43:00
G01     316.7          23.6                2.0 +/-    1.26       4.1 +/-    1.26  0.130 / 0.200
G10     89.0           48.5                3.7 +/-    1.24       4.7 +/-    1.24  0.090 / 0.200
G11     296.8          25.6                3.7 +/-    1.80       7.2 +/-    1.80  0.090 / 0.150
G14     317.6          71.5                2.5 +/-    0.73       2.7 +/-    0.73  0.130 / 0.160
G18     297.0          45.8                4.3 +/-    6.18       5.8 +/-    6.18  0.040 / 0.050
G20     110.5          24.6                4.1 +/-    1.97       8.0 +/-    1.97  0.040 / 0.040
G22     304.7          17.6                2.6 +/-    1.95       6.2 +/-    1.95  0.030 / 0.050
G25     96.0           10.7              -12.9 +/-   22.58     -35.5 +/-   22.58  0.040 / 0.040
G31     174.2          48.5                5.0 +/-    1.10       6.4 +/-    1.10  0.050 / 0.050
G32     9.9            65.8                2.5 +/-    0.72       2.7 +/-    0.72  0.050 / 0.040