PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/17-08:27:40
G02     204.4          41.4                9.7 +/-    1.90      13.9 +/-    1.90  0.040 / 0.080
G06     145.4          74.3                7.1 +/-    0.55       7.3 +/-    0.55  0.040 / 0.070
G12     310.7          22.7                4.2 +/-    1.94       8.6 +/-    1.94  0.070 / 0.170
G17     40.6           45.1                3.4 +/-    0.66       4.6 +/-    0.66  0.070 / 0.120
G19     15.4           60.8                4.2 +/-    0.58       4.7 +/-    0.58  0.040 / 0.040
G24     292.9          39.1                5.0 +/-    1.05       7.4 +/-    1.05  0.040 / 0.050
G28     103.2          35.1                6.9 +/-    0.62      10.9 +/-    0.62  0.050 / 0.130