PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/22-08:27:50
G01     112.0          21.2                5.7 +/-    1.14      12.2 +/-    1.14  0.030 / 0.040
G07     96.1           61.6                5.7 +/-    0.58       6.4 +/-    0.58  0.040 / 0.030
G08     43.5           28.5                2.4 +/-    0.64       4.3 +/-    0.64  0.040 / 0.040
G09     175.2          19.6                6.4 +/-    0.98      14.2 +/-    0.98  0.030 / 0.040
G11     100.6          43.3                6.1 +/-    0.67       8.5 +/-    0.67  0.140 / 0.120
G13     313.9          25.2                2.6 +/-    2.19       5.1 +/-    2.19  0.100 / 0.120
G17     203.0          28.6                6.4 +/-    3.33      11.5 +/-    3.33  0.100 / 0.230
G18     87.2           22.8                3.9 +/-    1.18       8.1 +/-    1.18  0.090 / 0.240
G28     292.1          55.1                5.8 +/-    1.02       6.9 +/-    1.02  0.100 / 0.250
G30     353.2          72.6                5.1 +/-    0.62       5.3 +/-    0.62  0.080 / 0.280