PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/16-22:28:00
G08     315.5          15.8                6.5 +/-    2.52      15.8 +/-    2.52  0.040 / 0.040
G10     316.7          57.2                6.9 +/-    0.81       8.0 +/-    0.81  0.030 / 0.040
G14     214.1          22.0               10.4 +/-    2.92      21.9 +/-    2.92  0.120 / 0.250
G15     45.9           22.7                6.8 +/-    2.46      14.1 +/-    2.46  0.140 / 0.290
G20     20.1           63.4                9.1 +/-    1.00      10.0 +/-    1.00  0.050 / 0.060
G21     123.5          65.1               10.0 +/-    0.70      10.9 +/-    0.70  0.050 / 0.070
G24     81.3           28.9               10.2 +/-    1.26      18.3 +/-    1.26  0.090 / 0.110
G27     287.3          37.1                7.3 +/-    0.64      11.1 +/-    0.64  0.070 / 0.090
G32     216.6          45.0               10.7 +/-    1.18      14.4 +/-    1.18  0.320 / 0.230