PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/11-15:12:40
G02     57.8           33.8                7.0 +/-    0.66      11.3 +/-    0.66  0.030 / 0.030
G05     64.0           65.7                8.6 +/-    0.56       9.4 +/-    0.56  0.030 / 0.030
G12     183.0          33.5                9.7 +/-    1.52      15.9 +/-    1.52  0.050 / 0.060
G13     128.0          13.7                9.9 +/-    2.67      25.4 +/-    2.67  0.050 / 0.060
G15     164.0          11.6               10.5 +/-    4.27      28.4 +/-    4.27  0.150 / 0.340
G21     270.1          15.6                7.0 +/-    2.04      17.3 +/-    2.04  0.130 / 0.460
G25     240.6          53.3                8.3 +/-    1.21      10.0 +/-    1.21  0.030 / 0.050
G29     326.9          52.0                5.9 +/-    0.89       7.3 +/-    0.89  0.040 / 0.060