PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/09-16:27:50
G02     35.2           53.0               10.1 +/-    1.14      12.3 +/-    1.14  0.040 / 0.050
G05     133.2          65.7               11.9 +/-    0.55      12.9 +/-    0.55  0.060 / 0.050
G06     56.5           11.0                7.5 +/-    2.15      20.6 +/-    2.15  0.190 / 0.180
G12     192.3          62.3               11.8 +/-    0.39      13.2 +/-    0.39  0.180 / 0.260
G25     289.8          55.5                9.6 +/-    1.38      11.4 +/-    1.38  0.050 / 0.060
G29     310.4          31.3                9.5 +/-    1.03      16.2 +/-    1.03  0.040 / 0.050