PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/14-15:27:40
G01     75.7           33.3               12.2 +/-    1.39      19.9 +/-    1.39  0.030 / 0.030
G07     134.9          34.9               13.3 +/-    1.18      21.2 +/-    1.18  0.040 / 0.040
G11     56.5           33.1               11.0 +/-    1.44      18.2 +/-    1.44  0.060 / 0.070
G13     279.6          37.9               12.4 +/-    2.08      18.7 +/-    2.08  0.070 / 0.090
G15     308.1          13.0               10.3 +/-    2.85      26.9 +/-    2.85  0.360 / 0.320
G17     226.7          65.0               13.0 +/-    1.05      14.2 +/-    1.05  0.240 / 0.150
G18     52.2           20.0               10.8 +/-    6.14      23.9 +/-    6.14  0.070 / 0.120
G19     221.2          35.4               14.0 +/-    2.21      22.1 +/-    2.21  0.050 / 0.100
G28     11.9           60.2               13.6 +/-    1.58      15.4 +/-    1.58  0.060 / 0.090
G30     130.4          66.7               12.8 +/-    0.63      13.8 +/-    0.63  0.080 / 0.090