PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/23-21:58:10
G08     315.5          15.8                8.6 +/-    3.04      21.1 +/-    3.04  0.070 / 0.080
G10     316.5          57.1               11.5 +/-    0.73      13.4 +/-    0.73  0.050 / 0.080
G14     214.0          22.0               15.0 +/-    2.49      31.5 +/-    2.49  0.030 / 0.050
G15     45.9           22.4                6.7 +/-    0.73      13.9 +/-    0.73  0.040 / 0.050
G20     19.8           63.4                9.1 +/-    0.42      10.0 +/-    0.42  0.110 / 0.270
G21     123.4          65.0                9.7 +/-    0.81      10.6 +/-    0.81  0.090 / 0.300
G24     81.3           28.8                9.0 +/-    0.56      16.2 +/-    0.56  0.070 / 0.140
G27     287.6          37.0               10.6 +/-    1.01      16.2 +/-    1.01  0.070 / 0.150
G32     216.5          44.7               14.9 +/-    1.81      20.1 +/-    1.81  0.150 / 0.570