PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/02/17-15:28:00
G01     293.0          40.2               17.4 +/-    5.62      25.3 +/-    5.62  0.040 / 0.050
G03     311.7          17.5                8.7 +/-    2.61      20.3 +/-    2.61  0.040 / 0.040
G10     118.2          29.1               11.6 +/-    1.19      20.8 +/-    1.19  0.070 / 0.090
G11     265.4          26.2                8.8 +/-    2.23      16.7 +/-    2.23  0.080 / 0.080
G14     23.0           59.3                9.2 +/-    1.14      10.5 +/-    1.14  0.080 / 0.060
G18     249.6          48.6               10.6 +/-    4.26      13.6 +/-    4.26  0.080 / 0.060
G22     314.0          38.8                7.3 +/-    1.24      10.8 +/-    1.24  0.050 / 0.050
G25     66.0           17.5                8.7 +/-    1.52      20.4 +/-    1.52  0.040 / 0.050
G31     153.9          76.3               10.9 +/-    0.74      11.2 +/-    0.74  0.060 / 0.090
G32     46.6           45.9                8.0 +/-    1.18      10.7 +/-    1.18  0.090 / 0.080