PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/28-00:43:00
G02     9.4            71.3                9.5 +/-    0.52      10.0 +/-    0.52  0.090 / 0.210
G05     158.6          42.9               14.9 +/-    0.57      20.7 +/-    0.57  0.080 / 0.220
G06     43.1           34.9                7.9 +/-    0.74      12.6 +/-    0.74  0.040 / 0.070
G12     293.8          76.0               10.5 +/-    1.30      10.7 +/-    1.30  0.040 / 0.070
G19     82.6           21.5               10.0 +/-    2.19      21.2 +/-    2.19  0.050 / 0.080
G24     221.1          16.3               11.8 +/-    2.82      28.3 +/-    2.82  0.050 / 0.080
G25     314.5          37.3               10.3 +/-    1.78      15.6 +/-    1.78  0.050 / 0.050
G29     293.8          17.4                9.1 +/-    1.59      21.4 +/-    1.59  0.040 / 0.050