PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/16-15:57:50
G02     35.1           53.1                9.5 +/-    1.36      11.6 +/-    1.36  0.040 / 0.050
G05     135.3          65.2               10.0 +/-    0.55      10.9 +/-    0.55  0.050 / 0.050
G06     56.1           11.4                7.8 +/-    3.18      21.1 +/-    3.18  0.030 / 0.030
G12     192.2          62.8               10.4 +/-    0.33      11.6 +/-    0.33  0.050 / 0.040
G25     290.8          55.2               10.3 +/-    0.84      12.2 +/-    0.84  0.140 / 0.140
G29     310.0          30.8               10.0 +/-    0.80      17.2 +/-    0.80  0.160 / 0.200