PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/02/24-20:57:50
G07     340.4          60.7                8.9 +/-    0.59      10.1 +/-    0.59  0.030 / 0.040
G08     95.4           51.2               11.1 +/-    0.62      13.8 +/-    0.62  0.030 / 0.040
G09     191.6          73.9                9.7 +/-    0.50      10.1 +/-    0.50  0.040 / 0.030
G11     144.2          14.2               13.9 +/-    1.59      35.1 +/-    1.59  0.030 / 0.020
G16     46.5           10.8                7.5 +/-    2.36      20.6 +/-    2.36  0.080 / 0.090
G23     156.2          43.2               10.5 +/-    0.93      14.5 +/-    0.93  0.080 / 0.080
G27     57.0           33.3                7.4 +/-    1.60      12.1 +/-    1.60  0.150 / 0.190
G28     236.3          26.4                9.8 +/-    1.19      18.6 +/-    1.19  0.070 / 0.190
G30     301.9          35.2                8.8 +/-    0.96      13.9 +/-    0.96  0.140 / 0.360