PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/15-09:27:40
G10     287.7          48.8                5.3 +/-    3.21       6.7 +/-    3.21  0.040 / 0.030
G15     47.7           33.8                3.8 +/-    1.46       6.1 +/-    1.46  0.030 / 0.040
G20     335.2          65.1                5.2 +/-    0.54       5.7 +/-    0.54  0.070 / 0.120
G21     78.5           74.7                6.0 +/-    0.37       6.2 +/-    0.37  0.080 / 0.100
G24     103.4          23.3                6.3 +/-    1.46      12.8 +/-    1.46  0.120 / 0.080
G27     309.3          29.0                4.0 +/-    1.50       7.1 +/-    1.50  0.130 / 0.130
G32     208.6          20.8                6.0 +/-    1.51      12.9 +/-    1.51  0.090 / 0.110