PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/10-18:28:00
G01     118.4          18.5               15.4 +/-    1.56      35.1 +/-    1.56  0.040 / 0.080
G07     81.8           66.5               13.1 +/-    0.48      14.1 +/-    0.48  0.090 / 0.070
G08     45.4           33.3               10.4 +/-    1.05      17.0 +/-    1.05  0.030 / 0.030
G09     177.1          25.4               14.4 +/-    1.63      27.9 +/-    1.63  0.030 / 0.030
G11     107.2          40.3               13.9 +/-    0.58      20.1 +/-    0.58  0.030 / 0.040
G13     317.4          19.9               11.6 +/-    1.99      25.5 +/-    1.99  0.030 / 0.040
G17     203.0          22.2               15.9 +/-    2.52      33.2 +/-    2.52  0.100 / 0.190
G18     93.9           21.2               13.1 +/-    1.86      28.0 +/-    1.86  0.100 / 0.170
G28     294.7          57.8               11.5 +/-    1.01      13.4 +/-    1.01  0.130 / 0.290
G30     350.8          70.1               12.5 +/-    0.64      13.2 +/-    0.64  0.130 / 0.200