PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/04-19:57:50
G02     200.0          18.0               15.1 +/-    2.53      34.8 +/-    2.53  0.090 / 0.130
G06     170.5          51.9               15.0 +/-    0.80      18.5 +/-    0.80  0.100 / 0.120
G13     229.3          14.9               16.9 +/-    2.64      42.1 +/-    2.64  0.100 / 0.160
G17     14.7           63.6               13.3 +/-    0.58      14.7 +/-    0.58  0.180 / 0.220
G19     307.0          70.7               13.0 +/-    0.39      13.7 +/-    0.39  0.040 / 0.040
G24     311.5          28.1               11.0 +/-    1.23      20.1 +/-    1.23  0.040 / 0.040
G28     85.0           41.2               14.1 +/-    1.24      20.1 +/-    1.24  0.030 / 0.040
G30     156.7          17.0               15.4 +/-    1.19      36.5 +/-    1.19  0.030 / 0.030