PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/06-01:12:20
G02     40.1           48.9                8.2 +/-    1.20      10.5 +/-    1.20  0.030 / 0.040
G05     119.2          67.3               10.4 +/-    0.66      11.2 +/-    0.66  0.030 / 0.040
G06     57.0           12.3                6.4 +/-    1.64      16.9 +/-    1.64  0.040 / 0.040
G12     195.9          61.9               11.4 +/-    0.82      12.8 +/-    0.82  0.040 / 0.040
G25     283.6          57.5               12.0 +/-    3.48      14.0 +/-    3.48  0.020 / 0.030
G29     314.3          36.8                8.6 +/-    0.98      13.3 +/-    0.98  0.020 / 0.030