PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/30-15:57:30
G02     57.4           34.4                8.2 +/-    3.82      13.1 +/-    3.82  0.110 / 0.320
G05     63.4           65.2                9.0 +/-    0.25       9.8 +/-    0.25  0.200 / 0.480
G12     183.4          33.9                9.6 +/-    1.98      15.6 +/-    1.98  0.060 / 0.120
G13     128.0          13.7               11.0 +/-    1.93      28.2 +/-    1.93  0.060 / 0.100
G15     164.4          11.3                4.7 +/-   24.19      12.7 +/-   24.19  0.180 / 0.330
G21     270.0          15.5                8.3 +/-    1.64      20.5 +/-    1.64  0.190 / 0.340
G25     240.8          53.3                8.7 +/-    3.84      10.6 +/-    3.84  0.150 / 0.380
G29     327.0          52.1                9.0 +/-    0.86      11.1 +/-    0.86  0.250 / 0.430