PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/16-10:58:10
G08     294.3          23.5                3.9 +/-    0.96       7.8 +/-    0.96  0.060 / 0.080
G10     5.4            62.8                4.6 +/-    1.06       5.1 +/-    1.06  0.060 / 0.080
G14     227.8          45.6                5.5 +/-    2.12       7.3 +/-    2.12  0.030 / 0.020
G20     62.9           53.1                5.0 +/-    0.75       6.1 +/-    0.75  0.030 / 0.020
G21     145.1          39.0                6.9 +/-    1.30      10.2 +/-    1.30  0.080 / 0.100
G24     56.3           25.0                3.6 +/-    2.12       7.0 +/-    2.12  0.100 / 0.150
G27     258.9          32.8                3.9 +/-    2.14       6.5 +/-    2.14  0.040 / 0.050
G32     239.3          61.7                5.5 +/-    1.49       6.1 +/-    1.49  0.030 / 0.030