PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/17-20:27:50
G01     301.0          38.5                8.8 +/-    3.80      13.1 +/-    3.80  0.080 / 0.130
G10     111.0          34.3               21.2 +/-    0.77      34.2 +/-    0.77  0.070 / 0.100
G14     355.0          66.6                7.7 +/-    0.58       8.3 +/-    0.58  0.040 / 0.050
G22     311.5          28.3                5.6 +/-    1.85      10.2 +/-    1.85  0.030 / 0.050
G25     77.8           17.3                8.3 +/-    1.23      19.6 +/-    1.23  0.070 / 0.160
G31     159.2          70.0                9.8 +/-    0.39      10.4 +/-    0.39  0.110 / 0.160
G32     42.4           47.8                7.0 +/-    1.04       9.0 +/-    1.04  0.060 / 0.070