PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/17-11:27:40
G08     278.5          22.3                6.9 +/-    0.95      14.2 +/-    0.95  0.140 / 0.170
G10     38.3           61.5                4.6 +/-    0.75       5.2 +/-    0.75  0.120 / 0.180
G14     244.6          58.7                6.8 +/-    0.98       7.8 +/-    0.98  0.020 / 0.020
G18     316.3          23.9                3.3 +/-    1.50       6.6 +/-    1.50  0.020 / 0.020
G20     82.5           44.3                5.6 +/-    1.26       7.6 +/-    1.26  0.050 / 0.050
G21     151.2          24.3                6.0 +/-    4.20      11.9 +/-    4.20  0.040 / 0.060
G24     44.9           16.8                2.8 +/-    3.29       6.7 +/-    3.29  0.180 / 0.150
G27     243.7          24.6                6.5 +/-    2.09      12.8 +/-    2.09  0.100 / 0.170
G31     182.2          16.5                4.8 +/-    1.26      11.4 +/-    1.26  0.030 / 0.020
G32     273.3          72.5                5.4 +/-    0.92       5.6 +/-    0.92  0.040 / 0.030