PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/16-18:43:00
G01     101.1          28.4               12.2 +/-    1.29      22.0 +/-    1.29  0.080 / 0.150
G07     114.9          54.1               12.1 +/-    0.39      14.5 +/-    0.39  0.090 / 0.170
G08     41.9           17.6                8.6 +/-    1.25      20.0 +/-    1.25  0.030 / 0.040
G11     82.0           42.9               12.4 +/-    0.56      17.2 +/-    0.56  0.030 / 0.030
G13     304.7          31.8               10.8 +/-    1.17      18.2 +/-    1.17  0.040 / 0.090
G17     209.4          40.7               13.8 +/-    1.25      19.8 +/-    1.25  0.040 / 0.090
G18     74.4           24.9               11.6 +/-    1.01      22.7 +/-    1.01  0.070 / 0.160
G19     211.1          17.0                2.6 +/-   15.52       6.3 +/-   15.52  0.070 / 0.210
G28     330.2          61.7               10.5 +/-    0.80      11.8 +/-    0.80  0.040 / 0.070
G30     60.3           79.4               10.9 +/-    0.66      11.1 +/-    0.66  0.050 / 0.070