PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/27-03:27:50
G08     309.9          18.4                7.1 +/-    1.64      16.2 +/-    1.64  0.030 / 0.060
G10     338.2          60.9                7.2 +/-    0.89       8.1 +/-    0.89  0.040 / 0.060
G14     218.5          32.2               11.8 +/-    1.77      19.7 +/-    1.77  0.060 / 0.080
G20     40.5           59.7                8.0 +/-    0.68       9.1 +/-    0.68  0.060 / 0.080
G21     136.0          55.8               10.9 +/-    0.82      12.8 +/-    0.82  0.030 / 0.040
G24     72.2           29.9                6.6 +/-    0.93      11.6 +/-    0.93  0.030 / 0.030
G27     273.8          37.3                9.4 +/-    0.74      14.4 +/-    0.74  0.060 / 0.170
G32     224.2          51.9               10.2 +/-    1.88      12.6 +/-    1.88  0.070 / 0.160