PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/26-20:27:40
G03     188.6          19.1               12.3 +/-    3.86      27.7 +/-    3.86  0.060 / 0.150
G07     289.9          37.0               10.3 +/-    2.05      15.8 +/-    2.05  0.060 / 0.170
G08     144.3          26.9               14.3 +/-    0.52      26.7 +/-    0.52  0.040 / 0.090
G09     320.1          61.5               11.3 +/-    0.55      12.6 +/-    0.55  0.050 / 0.090
G16     42.8           39.4                8.5 +/-    0.70      12.5 +/-    0.70  0.050 / 0.080
G23     116.4          77.7               10.1 +/-    0.75      10.3 +/-    0.75  0.040 / 0.080
G26     43.5           11.1                8.0 +/-    3.19      21.9 +/-    3.19  0.070 / 0.090
G27     98.7           33.7               12.3 +/-    0.88      20.1 +/-    0.88  0.050 / 0.090
G30     274.9          15.6               11.1 +/-    1.36      27.2 +/-    1.36  0.110 / 0.390