PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/18-01:27:50
G01     271.0          42.5                8.0 +/-    3.28      11.2 +/-    3.28  0.040 / 0.070
G03     315.5          26.9                5.9 +/-    2.00      10.9 +/-    2.00  0.060 / 0.060
G10     128.4          16.7                7.6 +/-    2.87      18.3 +/-    2.87  0.050 / 0.060
G11     253.9          20.0                7.5 +/-    2.59      16.4 +/-    2.59  0.050 / 0.050
G14     37.8           53.1                6.9 +/-    2.28       8.4 +/-    2.28  0.060 / 0.080
G18     235.0          40.2                9.5 +/-    1.05      13.7 +/-    1.05  0.080 / 0.090
G22     314.4          48.4                6.4 +/-    0.96       8.3 +/-    0.96  0.060 / 0.100
G25     55.3           17.3                5.1 +/-    2.73      12.0 +/-    2.73  0.070 / 0.070
G31     59.7           73.8                6.5 +/-    0.63       6.8 +/-    0.63  0.040 / 0.050
G32     62.4           33.3                5.1 +/-    0.92       8.3 +/-    0.92  0.040 / 0.070