PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/16-15:27:50
G02     21.1           63.6                8.5 +/-    1.08       9.4 +/-    1.08  0.140 / 0.220
G05     154.2          52.8               10.9 +/-    0.83      13.3 +/-    0.83  0.190 / 0.250
G06     49.1           21.5                6.9 +/-    1.11      14.7 +/-    1.11  0.050 / 0.040
G12     215.1          76.8                8.8 +/-    0.83       9.0 +/-    0.83  0.040 / 0.040
G19     93.2           13.1                9.0 +/-    2.99      23.5 +/-    2.99  0.030 / 0.030
G25     307.7          46.0               11.0 +/-    1.28      14.5 +/-    1.28  0.030 / 0.030
G29     300.4          21.2                9.4 +/-    1.86      20.0 +/-    1.86  0.140 / 0.120