PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/13-13:28:00
G02     69.4           23.8                3.2 +/-    1.60       6.5 +/-    1.60  0.040 / 0.030
G05     48.3           54.0                2.9 +/-    0.61       3.5 +/-    0.61  0.040 / 0.040
G12     179.6          18.7                6.6 +/-    0.80      14.9 +/-    0.80  0.110 / 0.160
G13     116.8          22.4                7.7 +/-    1.07      16.0 +/-    1.07  0.090 / 0.190
G15     155.3          23.1                5.1 +/-    1.89      10.5 +/-    1.89  0.030 / 0.030
G21     281.4          24.3                6.7 +/-    1.73      13.4 +/-    1.73  0.040 / 0.030
G25     223.0          43.1                9.7 +/-    1.68      13.4 +/-    1.68  0.100 / 0.160
G29     336.0          64.8                5.1 +/-    0.72       5.5 +/-    0.72  0.110 / 0.200