PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/15-11:43:10
G01     38.1           11.6                3.0 +/-    1.16       8.0 +/-    1.16  0.040 / 0.080
G06     172.0          44.7                6.4 +/-    1.97       8.7 +/-    1.97  0.040 / 0.080
G13     232.5          19.5                3.9 +/-    2.01       8.8 +/-    2.01  0.140 / 0.250
G15     267.3          10.4                1.3 +/-    3.66       3.7 +/-    3.66  0.180 / 0.240
G17     5.2            68.5                5.5 +/-    1.11       5.9 +/-    1.11  0.030 / 0.040
G19     296.5          72.1                6.3 +/-    0.98       6.6 +/-    0.98  0.030 / 0.040
G24     315.1          21.7                0.3 +/-    1.84       0.7 +/-    1.84  0.110 / 0.230
G28     70.5           50.0                5.2 +/-    0.64       6.6 +/-    0.64  0.090 / 0.270
G30     156.2          24.4                3.8 +/-    3.18       7.6 +/-    3.18  0.030 / 0.030