PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/10-19:43:00
G07     328.3          56.9               10.8 +/-    0.46      12.6 +/-    0.46  0.030 / 0.040
G08     109.1          48.6               12.8 +/-    0.47      16.4 +/-    0.47  0.040 / 0.040
G09     220.1          81.5               11.5 +/-    0.30      11.6 +/-    0.30  0.060 / 0.060
G16     44.0           18.2                7.9 +/-    2.52      18.2 +/-    2.52  0.050 / 0.050
G23     152.8          51.6               12.9 +/-    0.51      16.0 +/-    0.51  0.120 / 0.330
G27     65.9           36.4               12.1 +/-    1.22      18.7 +/-    1.22  0.310 / 0.420
G28     230.6          19.6               14.7 +/-    1.88      32.6 +/-    1.88  0.030 / 0.020
G30     295.7          30.2               10.8 +/-    1.82      18.9 +/-    1.82  0.030 / 0.020