PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/20-06:13:10
G01     90.1           31.7                6.1 +/-    1.07      10.3 +/-    1.07  0.060 / 0.080
G07     125.8          43.7                8.7 +/-    0.36      12.0 +/-    0.36  0.070 / 0.110
G11     66.7           38.8                5.7 +/-    1.16       8.4 +/-    1.16  0.050 / 0.050
G13     294.1          36.5                7.0 +/-    2.73      10.8 +/-    2.73  0.050 / 0.050
G17     213.6          56.4                8.0 +/-    0.64       9.3 +/-    0.64  0.030 / 0.030
G19     214.6          24.5                6.8 +/-    2.00      13.4 +/-    2.00  0.020 / 0.020
G28     345.3          61.8                5.7 +/-    0.72       6.4 +/-    0.72  0.050 / 0.040
G30     100.8          77.7                6.9 +/-    0.32       7.0 +/-    0.32  0.050 / 0.040