PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/02/06-22:28:10
G07     354.0          64.1               10.2 +/-    0.61      11.2 +/-    0.61  0.080 / 0.130
G08     81.2           51.3                9.4 +/-    0.86      11.7 +/-    0.86  0.130 / 0.110
G09     183.2          64.8               10.8 +/-    0.66      11.8 +/-    0.66  0.110 / 0.200
G11     138.8          19.4                7.0 +/-    1.43      15.7 +/-    1.43  0.100 / 0.160
G23     158.6          35.1               10.9 +/-    0.88      17.3 +/-    0.88  0.040 / 0.040
G27     50.0           29.1                8.9 +/-    1.72      15.8 +/-    1.72  0.040 / 0.030
G28     242.8          32.9               11.2 +/-    1.53      18.6 +/-    1.53  0.030 / 0.030
G30     308.1          40.2                9.8 +/-    1.20      14.2 +/-    1.20  0.030 / 0.030