PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/15-04:28:00
G02     33.5           54.7                4.3 +/-    1.00       5.2 +/-    1.00  0.070 / 0.040
G05     138.1          62.0                5.9 +/-    0.77       6.6 +/-    0.77  0.040 / 0.050
G06     51.7           20.6                4.3 +/-    3.06       9.4 +/-    3.06  0.210 / 0.270
G12     205.9          70.4                5.6 +/-    0.51       6.0 +/-    0.51  0.180 / 0.320
G19     99.2           10.1                6.4 +/-    2.40      17.7 +/-    2.40  0.030 / 0.030
G25     295.5          54.9                4.0 +/-    3.47       4.7 +/-    3.47  0.030 / 0.020
G29     309.7          32.4                3.7 +/-    0.87       6.2 +/-    0.87  0.030 / 0.030