PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/28-15:12:20
G02     37.5           51.1                9.6 +/-    0.47      12.0 +/-    0.47  0.040 / 0.030
G05     132.7          66.4               11.7 +/-    0.69      12.7 +/-    0.69  0.030 / 0.040
G06     57.2           10.1                6.6 +/-    5.04      18.4 +/-    5.04  0.040 / 0.050
G12     190.2          60.3               11.6 +/-    1.10      13.1 +/-    1.10  0.040 / 0.050
G25     287.5          56.1                8.2 +/-    0.96       9.7 +/-    0.96  0.030 / 0.050
G29     311.1          32.0                7.6 +/-    1.73      12.8 +/-    1.73  0.030 / 0.040