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                6.5 +/-    0.88       9.1 +/-    0.88  0.050 / 0.070
G03     315.5          26.9                3.4 +/-    1.28       6.4 +/-    1.28  0.040 / 0.060
G10     128.4          16.7                7.3 +/-    1.70      17.5 +/-    1.70  0.040 / 0.080
G11     253.9          20.0                8.5 +/-    2.18      18.7 +/-    2.18  0.050 / 0.090
G14     37.8           53.1                6.9 +/-    0.72       8.4 +/-    0.72  0.040 / 0.050
G18     235.0          40.2                7.9 +/-    0.67      11.5 +/-    0.67  0.040 / 0.060
G22     314.4          48.4                5.4 +/-    0.99       7.0 +/-    0.99  0.070 / 0.130
G25     55.3           17.3                4.2 +/-    1.15       9.8 +/-    1.15  0.080 / 0.180
G31     59.7           73.8                7.4 +/-    0.53       7.6 +/-    0.53  0.050 / 0.090
G32     62.4           33.3                5.1 +/-    0.81       8.4 +/-    0.81  0.090 / 0.100