PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/22-18:57:40
G07     331.9          58.1               11.0 +/-    0.54      12.7 +/-    0.54  0.030 / 0.040
G08     106.6          49.4               12.7 +/-    0.64      16.1 +/-    0.64  0.030 / 0.050
G09     211.5          80.2               12.5 +/-    0.34      12.7 +/-    0.34  0.150 / 0.310
G11     148.3          10.4                1.1 +/-   24.14       2.9 +/-   24.14  0.160 / 0.300
G16     44.5           16.4                9.7 +/-    3.05      23.3 +/-    3.05  0.030 / 0.020
G23     153.6          49.2               12.3 +/-    0.46      15.7 +/-    0.46  0.030 / 0.020
G27     63.5           35.7               11.0 +/-    1.21      17.3 +/-    1.21  0.080 / 0.060
G28     231.8          20.9               11.9 +/-    3.18      25.5 +/-    3.18  0.090 / 0.080
G30     297.4          31.7               11.3 +/-    1.70      19.0 +/-    1.70  0.080 / 0.100