PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/06-14:27:50
G01     121.0          16.5               11.7 +/-    2.28      28.1 +/-    2.28  0.250 / 0.170
G07     74.5           67.6               10.0 +/-    0.33      10.7 +/-    0.33  0.350 / 0.150
G08     45.9           33.4                8.5 +/-    1.19      13.9 +/-    1.19  0.030 / 0.030
G09     176.4          27.1               11.0 +/-    1.01      20.5 +/-    1.01  0.030 / 0.030
G11     109.3          39.1               11.1 +/-    1.09      16.3 +/-    1.09  0.050 / 0.070
G13     318.6          17.8                8.2 +/-    3.14      19.1 +/-    3.14  0.090 / 0.050
G17     201.4          21.8               11.8 +/-    2.64      24.8 +/-    2.64  0.110 / 0.230
G18     96.4           20.0               10.7 +/-    2.22      23.6 +/-    2.22  0.150 / 0.230
G28     288.6          56.4               10.5 +/-    1.65      12.4 +/-    1.65  0.030 / 0.030
G30     342.0          66.4               11.4 +/-    0.46      12.4 +/-    0.46  0.030 / 0.030