PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/11-16:13:20
G01     38.4           12.1                5.4 +/-    4.09      14.4 +/-    4.09  0.050 / 0.060
G02     199.9          10.9                0.3 +/-    8.55       0.9 +/-    8.55  0.040 / 0.080
G06     173.1          43.8               10.0 +/-    0.76      13.8 +/-    0.76  0.200 / 0.200
G13     232.7          19.5                9.2 +/-    2.95      20.5 +/-    2.95  0.210 / 0.170
G17     3.9            68.8                8.0 +/-    0.90       8.5 +/-    0.90  0.090 / 0.150
G19     294.4          71.7                7.7 +/-    0.42       8.1 +/-    0.42  0.030 / 0.040
G24     314.8          22.4                8.2 +/-    2.00      17.0 +/-    2.00  0.030 / 0.030
G28     71.7           49.1                8.6 +/-    1.11      11.0 +/-    1.11  0.040 / 0.040
G30     155.2          21.7                9.3 +/-    1.65      19.6 +/-    1.65  0.040 / 0.030