PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/04-16:43:00
G02     57.5           35.5                7.8 +/-    0.51      12.3 +/-    0.51  0.050 / 0.060
G05     62.4           65.2                8.7 +/-    0.45       9.5 +/-    0.45  0.040 / 0.060
G12     183.1          31.4               11.1 +/-    1.28      18.9 +/-    1.28  0.170 / 0.350
G13     128.1          14.9               13.9 +/-    2.22      34.6 +/-    2.22  0.180 / 0.350
G15     167.4          9.9               -10.0 +/-   13.05     -28.0 +/-   13.05  0.120 / 0.340
G21     271.2          17.3                9.7 +/-    2.52      22.7 +/-    2.52  0.150 / 0.240
G25     232.5          51.7                9.5 +/-    1.11      11.7 +/-    1.11  0.030 / 0.030
G29     327.9          53.7                7.0 +/-    0.77       8.5 +/-    0.77  0.030 / 0.040