PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/19-22:27:50
G08     311.2          18.6                6.9 +/-    1.49      15.7 +/-    1.49  0.040 / 0.040
G10     326.7          59.2                6.8 +/-    0.57       7.8 +/-    0.57  0.040 / 0.040
G14     216.5          27.3               10.1 +/-    1.56      18.8 +/-    1.56  0.140 / 0.170
G15     46.4           17.7                7.0 +/-    2.07      16.3 +/-    2.07  0.080 / 0.160
G20     31.6           61.6                7.9 +/-    1.18       8.9 +/-    1.18  0.060 / 0.070
G21     131.0          59.9               10.1 +/-    0.46      11.5 +/-    0.46  0.050 / 0.070
G24     74.8           29.1                8.7 +/-    1.06      15.5 +/-    1.06  0.060 / 0.080
G27     280.2          37.3               10.0 +/-    2.18      15.3 +/-    2.18  0.070 / 0.080
G32     220.5          50.4               10.7 +/-    1.63      13.4 +/-    1.63  0.090 / 0.180