PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/28-17:12:20
G02     32.7           55.0                9.5 +/-    1.02      11.3 +/-    1.02  0.030 / 0.050
G05     135.8          64.4               10.9 +/-    0.91      12.0 +/-    0.91  0.030 / 0.040
G06     55.4           12.4                6.7 +/-    1.16      17.7 +/-    1.16  0.050 / 0.050
G12     194.6          64.7                8.6 +/-    1.61       9.5 +/-    1.61  0.050 / 0.070
G25     292.9          54.5                8.8 +/-    0.66      10.5 +/-    0.66  0.030 / 0.040
G29     309.3          30.1                8.6 +/-    1.69      15.1 +/-    1.69  0.030 / 0.040