PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/27-16:12:30
G02     205.9          39.3               11.1 +/-    1.40      16.4 +/-    1.40  0.070 / 0.150
G06     143.5          75.2               10.0 +/-    0.82      10.3 +/-    0.82  0.070 / 0.150
G12     309.9          19.2                8.5 +/-    1.70      19.1 +/-    1.70  0.080 / 0.100
G17     38.5           47.4                7.5 +/-    1.33       9.8 +/-    1.33  0.100 / 0.090
G19     15.8           60.5                9.1 +/-    0.68      10.2 +/-    0.68  0.050 / 0.050
G24     290.9          40.1               12.3 +/-    5.06      17.9 +/-    5.06  0.040 / 0.050
G28     105.4          32.4                8.6 +/-    1.63      14.4 +/-    1.63  0.040 / 0.040