PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/28-12:27:50
G02     70.2           22.9                4.1 +/-    2.03       8.5 +/-    2.03  0.030 / 0.030
G05     47.7           52.4                4.8 +/-    0.73       5.9 +/-    0.73  0.030 / 0.030
G12     179.9          18.7                3.8 +/-    1.73       8.6 +/-    1.73  0.170 / 0.240
G13     116.2          22.8                7.2 +/-    1.37      14.7 +/-    1.37  0.110 / 0.200
G15     154.4          24.0                6.6 +/-    2.48      13.1 +/-    2.48  0.030 / 0.030
G20     224.8          10.9               -5.4 +/-   12.94     -14.9 +/-   12.94  0.030 / 0.030
G21     282.1          25.0                5.1 +/-    1.91      10.0 +/-    1.91  0.180 / 0.210
G25     222.0          42.5                6.1 +/-    1.75       8.6 +/-    1.75  0.090 / 0.180
G29     336.4          65.5                4.8 +/-    0.35       5.3 +/-    0.35  0.080 / 0.230