PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/17-11:57:50
G08     264.9          17.8                5.6 +/-    1.04      13.0 +/-    1.04  0.160 / 0.310
G10     64.8           57.0                4.5 +/-    0.84       5.2 +/-    0.84  0.180 / 0.400
G11     310.0          18.8                2.2 +/-    1.20       4.9 +/-    1.20  0.020 / 0.020
G14     271.1          68.0                5.3 +/-    0.44       5.7 +/-    0.44  0.030 / 0.030
G18     310.6          35.6                3.9 +/-    1.12       6.1 +/-    1.12  0.040 / 0.040
G20     96.9           35.4                4.3 +/-    1.03       6.7 +/-    1.03  0.040 / 0.040
G21     154.2          11.2                5.9 +/-    3.20      16.0 +/-    3.20  0.080 / 0.120
G27     232.7          15.7                6.2 +/-    2.72      15.2 +/-    2.72  0.060 / 0.100
G31     179.5          30.0                5.1 +/-    1.75       8.9 +/-    1.75  0.030 / 0.020
G32     326.1          74.1                5.8 +/-    0.49       6.1 +/-    0.49  0.030 / 0.030