PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/19-01:27:40
G02     15.4           68.2                7.2 +/-    1.09       7.7 +/-    1.09  0.030 / 0.030
G05     156.2          46.6               11.6 +/-    0.80      15.3 +/-    0.80  0.030 / 0.030
G06     44.4           32.1                5.7 +/-    1.07       9.6 +/-    1.07  0.190 / 0.440
G12     277.7          78.1                8.1 +/-    0.82       8.3 +/-    0.82  0.150 / 0.460
G19     85.8           19.5                8.9 +/-    0.97      19.9 +/-    0.97  0.060 / 0.090
G24     218.4          13.8               12.1 +/-    4.72      30.9 +/-    4.72  0.050 / 0.100
G25     312.7          40.9                7.2 +/-    0.78      10.3 +/-    0.78  0.040 / 0.060
G29     296.8          20.1                8.8 +/-    1.41      19.3 +/-    1.41  0.050 / 0.050