PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/21-21:12:40
G08     316.9          14.1                7.9 +/-    2.85      20.0 +/-    2.85  0.040 / 0.040
G10     322.5          58.7               10.1 +/-    0.82      11.6 +/-    0.82  0.040 / 0.040
G14     214.6          21.9               12.8 +/-    1.40      27.0 +/-    1.40  0.100 / 0.240
G15     46.0           16.0                8.5 +/-    3.76      20.5 +/-    3.76  0.090 / 0.190
G20     26.6           62.2               10.8 +/-    2.06      12.0 +/-    2.06  0.310 / 0.310
G21     125.9          64.2               11.6 +/-    0.97      12.7 +/-    0.97  0.210 / 0.270
G24     83.6           30.4               10.4 +/-    0.71      18.1 +/-    0.71  0.060 / 0.050
G27     284.2          38.0                9.7 +/-    2.58      14.6 +/-    2.58  0.060 / 0.050
G32     217.2          46.1               12.3 +/-    0.90      16.3 +/-    0.90  0.070 / 0.070