PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/08-18:28:00
G01     38.7           12.7                9.8 +/-    3.47      25.7 +/-    3.47  0.050 / 0.060
G02     199.5          11.3                6.6 +/-   19.15      17.8 +/-   19.15  0.050 / 0.070
G06     174.2          42.5               14.3 +/-    1.15      20.0 +/-    1.15  0.120 / 0.280
G13     233.2          19.8               13.9 +/-    2.09      30.7 +/-    2.09  0.160 / 0.430
G15     266.6          10.8               12.4 +/-    1.35      34.0 +/-    1.35  0.120 / 0.140
G17     6.6            68.2               11.3 +/-    0.95      12.1 +/-    0.95  0.100 / 0.170
G19     291.6          71.3               11.5 +/-    0.75      12.0 +/-    0.75  0.140 / 0.540
G24     314.8          22.5               13.1 +/-    2.18      27.2 +/-    2.18  0.210 / 0.340
G28     71.6           48.9               11.6 +/-    1.11      14.8 +/-    1.11  0.040 / 0.030
G30     154.5          20.3               11.7 +/-    1.48      25.6 +/-    1.48  0.040 / 0.040