PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/26-14:13:10
G02     59.1           32.4                5.4 +/-    0.60       9.0 +/-    0.60  0.030 / 0.030
G05     62.9           65.7                4.7 +/-    0.50       5.1 +/-    0.50  0.030 / 0.030
G12     182.3          31.8                8.3 +/-    2.09      14.1 +/-    2.09  0.050 / 0.050
G13     127.1          14.4                9.6 +/-    3.92      24.2 +/-    3.92  0.050 / 0.070
G15     162.8          12.8                9.2 +/-    1.86      24.2 +/-    1.86  0.150 / 0.520
G21     271.0          16.4                6.7 +/-    1.78      16.1 +/-    1.78  0.130 / 0.550
G25     238.6          52.6                4.3 +/-    1.36       5.2 +/-    1.36  0.060 / 0.090
G29     327.5          52.8                2.4 +/-    0.92       2.9 +/-    0.92  0.050 / 0.090