PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/30-15:57:40
G02     57.4           34.4                8.1 +/-    0.84      12.9 +/-    0.84  0.030 / 0.030
G05     63.4           65.2                8.5 +/-    0.70       9.3 +/-    0.70  0.030 / 0.040
G12     183.4          33.9               10.1 +/-    1.51      16.4 +/-    1.51  0.150 / 0.370
G13     128.0          13.7               10.1 +/-    1.80      26.0 +/-    1.80  0.160 / 0.360
G15     164.4          11.3                7.9 +/-   20.96      21.4 +/-   20.96  0.050 / 0.060
G21     270.0          15.5               10.0 +/-    1.40      24.6 +/-    1.40  0.050 / 0.080
G25     240.8          53.3                7.8 +/-    1.33       9.5 +/-    1.33  0.170 / 0.470
G29     327.0          52.1                7.2 +/-    0.94       8.9 +/-    0.94  0.150 / 0.480