PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/26-23:43:00
G02     238.7          75.4               11.9 +/-    0.44      12.3 +/-    0.44  0.450 / 0.460
G05     171.5          15.3               17.6 +/-    0.93      43.4 +/-    0.93  0.440 / 0.530
G06     40.6           62.9                9.6 +/-    0.46      10.7 +/-    0.46  0.060 / 0.080
G12     320.7          47.5               11.5 +/-    0.44      15.0 +/-    0.44  0.100 / 0.100
G17     69.5           22.7               10.1 +/-    2.41      20.9 +/-    2.41  0.050 / 0.040
G19     55.4           39.2               11.6 +/-    1.01      17.0 +/-    1.01  0.040 / 0.040
G24     245.6          35.5               14.9 +/-    1.76      23.5 +/-    1.76  0.140 / 0.160
G25     316.0          11.4               -7.1 +/-   36.43     -19.1 +/-   36.43  0.170 / 0.220