PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/07-00:27:40
G08     307.4          20.3               11.7 +/-    1.10      25.5 +/-    1.10  0.030 / 0.030
G10     332.0          59.9               11.9 +/-    0.32      13.6 +/-    0.32  0.020 / 0.030
G14     218.7          33.4               16.0 +/-    1.61      26.3 +/-    1.61  0.030 / 0.050
G15     46.9           10.8               13.4 +/-    2.31      36.8 +/-    2.31  0.030 / 0.040
G18     39.4           59.3               13.7 +/-    0.58      15.7 +/-    0.58  0.060 / 0.060
G21     134.8          55.1               17.1 +/-    0.48      20.3 +/-    0.48  0.080 / 0.070
G24     74.5           30.6               14.4 +/-    1.00      24.9 +/-    1.00  0.060 / 0.060
G27     271.6          37.4               14.9 +/-    3.04      22.6 +/-    3.04  0.070 / 0.060
G32     224.4          50.8               15.4 +/-    2.14      19.2 +/-    2.14  0.160 / 0.180