PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/05-21:42:50
G01     124.2          13.4               12.0 +/-    2.15      31.1 +/-    2.15  0.130 / 0.470
G07     72.7           66.0               11.7 +/-    0.15      12.7 +/-    0.15  0.120 / 0.560
G08     47.5           35.3                9.1 +/-    0.62      14.3 +/-    0.62  0.060 / 0.070
G09     178.0          33.4               12.2 +/-    1.07      20.0 +/-    1.07  0.050 / 0.070
G11     112.7          37.6               12.4 +/-    0.73      18.8 +/-    0.73  0.040 / 0.040
G13     320.0          14.9                7.8 +/-    2.47      19.6 +/-    2.47  0.040 / 0.040
G17     199.3          19.6               12.8 +/-    1.81      28.5 +/-    1.81  0.160 / 0.260
G18     97.3           18.0               11.6 +/-    1.36      26.9 +/-    1.36  0.180 / 0.310
G28     276.9          51.9               12.6 +/-    1.82      15.5 +/-    1.82  0.030 / 0.040
G30     336.9          63.4               10.7 +/-    0.54      11.9 +/-    0.54  0.030 / 0.040