PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/05-00:57:40
G02     32.7           55.4                8.3 +/-    0.38       9.8 +/-    0.38  0.040 / 0.060
G05     138.3          61.7                9.3 +/-    0.81      10.4 +/-    0.81  0.040 / 0.070
G06     52.2           18.6                5.7 +/-    0.50      13.0 +/-    0.50  0.040 / 0.040
G12     207.0          71.0                8.7 +/-    0.48       9.1 +/-    0.48  0.040 / 0.050
G25     298.0          53.2                7.6 +/-    0.61       9.3 +/-    0.61  0.030 / 0.030
G29     308.2          30.4                7.9 +/-    0.81      13.7 +/-    0.81  0.020 / 0.040