PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/14-19:12:50
G07     319.8          53.7               12.4 +/-    1.49      14.9 +/-    1.49  0.170 / 0.610
G08     118.0          45.2               15.0 +/-    0.96      20.2 +/-    0.96  0.200 / 0.560
G09     272.3          82.5               13.3 +/-    1.60      13.4 +/-    1.60  0.050 / 0.070
G16     42.7           23.8                9.6 +/-    0.56      19.4 +/-    0.56  0.040 / 0.070
G23     149.4          58.2               15.4 +/-    0.52      17.7 +/-    0.52  0.060 / 0.080
G27     73.7           37.7               11.7 +/-    0.89      17.7 +/-    0.89  0.060 / 0.100
G28     226.9          14.3               16.5 +/-    4.20      41.7 +/-    4.20  0.040 / 0.060
G30     290.9          26.4               13.6 +/-    1.74      25.8 +/-    1.74  0.030 / 0.050