PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/26-18:42:50
G01     78.8           33.3               11.9 +/-    0.57      19.5 +/-    0.57  0.090 / 0.160
G07     133.2          37.5               13.4 +/-    0.89      20.4 +/-    0.89  0.080 / 0.160
G11     59.5           35.6               10.8 +/-    0.76      16.9 +/-    0.76  0.040 / 0.080
G13     283.2          37.7               12.8 +/-    0.58      19.3 +/-    0.58  0.040 / 0.090
G15     308.9          13.1               10.5 +/-    2.12      27.4 +/-    2.12  0.030 / 0.040
G17     223.5          60.1               14.5 +/-    1.01      16.4 +/-    1.01  0.030 / 0.040
G18     54.9           21.3                8.6 +/-    1.13      18.2 +/-    1.13  0.060 / 0.110
G19     219.7          34.2               13.7 +/-    1.31      22.1 +/-    1.31  0.050 / 0.110
G28     7.7            60.6               10.6 +/-    0.69      12.0 +/-    0.69  0.070 / 0.250
G30     126.8          67.6               13.6 +/-    0.60      14.6 +/-    0.60  0.080 / 0.240