PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/17-21:42:40
G01     318.1          21.6                8.5 +/-    2.26      18.0 +/-    2.26  0.040 / 0.050
G08     257.1          12.6               10.2 +/-   15.83      26.9 +/-   15.83  0.050 / 0.040
G10     83.7           50.2               10.0 +/-    0.57      12.5 +/-    0.57  0.120 / 0.240
G11     303.4          21.9                9.5 +/-    1.61      20.1 +/-    1.61  0.140 / 0.290
G14     292.2          69.3               11.1 +/-    0.52      11.7 +/-    0.52  0.250 / 0.310
G20     107.8          25.9               10.9 +/-    1.40      20.8 +/-    1.40  0.260 / 0.470
G31     174.4          44.6               13.6 +/-    0.91      18.4 +/-    0.91  0.030 / 0.040
G32     13.2           65.7                9.4 +/-    0.49      10.2 +/-    0.49  0.040 / 0.060