PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/02/05-21:28:10
G07     309.4          49.0               10.9 +/-    0.85      14.0 +/-    0.85  0.040 / 0.080
G08     125.6          40.6               12.8 +/-    0.80      18.5 +/-    0.80  0.040 / 0.070
G09     305.7          78.4                9.6 +/-    1.03       9.8 +/-    1.03  0.140 / 0.230
G16     42.0           28.1                5.9 +/-    1.08      10.7 +/-    1.08  0.090 / 0.210
G23     144.1          66.7               11.5 +/-    0.73      12.4 +/-    0.73  0.030 / 0.070
G27     83.8           38.1                9.5 +/-    0.37      14.3 +/-    0.37  0.040 / 0.090
G30     285.0          21.2                7.7 +/-    1.85      16.4 +/-    1.85  0.030 / 0.050