PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/29-17:42:50
G01     104.4          27.0               18.7 +/-    0.59      34.9 +/-    0.59  0.080 / 0.160
G07     110.7          56.6               17.6 +/-    0.42      20.6 +/-    0.42  0.100 / 0.170
G08     41.9           19.6               12.1 +/-    1.05      26.8 +/-    1.05  0.030 / 0.040
G09     174.2          11.1               19.0 +/-    2.11      51.7 +/-    2.11  0.030 / 0.050
G11     86.0           43.0               17.5 +/-    0.81      24.3 +/-    0.81  0.030 / 0.040
G13     307.5          30.2               18.9 +/-    1.84      33.0 +/-    1.84  0.030 / 0.030
G17     207.7          38.2               20.2 +/-    1.31      30.4 +/-    1.31  0.040 / 0.060
G18     77.7           24.7               16.1 +/-    0.90      31.8 +/-    0.90  0.050 / 0.070
G28     323.6          61.4               16.8 +/-    1.03      18.9 +/-    1.03  0.050 / 0.080
G30     39.8           79.2               17.1 +/-    0.67      17.4 +/-    0.67  0.050 / 0.080