PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/24-09:27:50
G08     263.5          16.7                7.8 +/-    1.19      18.5 +/-    1.19  0.220 / 0.580
G10     69.3           55.7                2.8 +/-    0.63       3.3 +/-    0.63  0.200 / 0.520
G11     308.3          20.0                4.4 +/-    1.59       9.6 +/-    1.59  0.030 / 0.030
G14     277.2          69.0                4.0 +/-    0.65       4.2 +/-    0.65  0.030 / 0.030
G18     309.4          36.9                5.0 +/-    1.13       7.6 +/-    1.13  0.130 / 0.250
G20     99.3           33.8                3.5 +/-    1.02       5.7 +/-    1.02  0.120 / 0.340
G21     155.1          10.4                4.9 +/-    4.68      13.5 +/-    4.68  0.040 / 0.050
G27     230.3          13.9                5.3 +/-    2.14      13.6 +/-    2.14  0.040 / 0.050
G31     177.9          33.8                4.8 +/-    1.55       7.8 +/-    1.55  0.130 / 0.190
G32     333.8          73.4                4.3 +/-    0.58       4.5 +/-    0.58  0.130 / 0.300