PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/02/14-20:27:50
G03     188.2          16.6               10.6 +/-    3.38      25.2 +/-    3.38  0.090 / 0.090
G07     297.2          43.1               11.3 +/-    3.74      15.6 +/-    3.74  0.090 / 0.070
G08     136.1          32.0               14.0 +/-    1.38      23.6 +/-    1.38  0.060 / 0.090
G09     319.6          67.0               10.9 +/-    0.65      11.7 +/-    0.65  0.060 / 0.070
G16     42.7           38.8                8.7 +/-    0.96      13.0 +/-    0.96  0.220 / 0.250
G23     125.7          77.8               11.1 +/-    0.56      11.3 +/-    0.56  0.140 / 0.150
G27     98.0           35.4               12.9 +/-    0.62      20.4 +/-    0.62  0.030 / 0.030
G30     276.6          14.7                9.5 +/-    1.65      23.7 +/-    1.65  0.030 / 0.030