PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/13-01:27:50
G01     223.3          16.0                7.6 +/-    2.99      18.5 +/-    2.99  0.030 / 0.050
G03     287.4          67.6                4.6 +/-    0.61       4.9 +/-    0.61  0.030 / 0.040
G14     85.5           26.5                4.8 +/-    1.49       9.1 +/-    1.49  0.040 / 0.080
G16     142.8          46.3                8.6 +/-    1.37      11.4 +/-    1.37  0.040 / 0.090
G22     219.8          69.9                6.1 +/-    1.18       6.4 +/-    1.18  0.100 / 0.220
G23     308.7          39.0                5.0 +/-    1.05       7.3 +/-    1.05  0.110 / 0.240
G26     94.5           54.1                5.6 +/-    0.68       6.7 +/-    0.68  0.100 / 0.170
G31     46.3           30.1               -3.2 +/-    0.95      -5.7 +/-    0.95  0.120 / 0.190