PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/20-16:57:40
G08     318.1          13.7                6.6 +/-    1.41      16.8 +/-    1.41  0.080 / 0.080
G10     315.2          57.3                8.3 +/-    1.40       9.7 +/-    1.40  0.070 / 0.080
G14     213.3          15.7               11.4 +/-    2.67      27.8 +/-    2.67  0.200 / 0.370
G15     45.5           17.0                6.1 +/-    0.39      14.5 +/-    0.39  0.160 / 0.290
G20     21.3           62.8                8.8 +/-    0.44       9.7 +/-    0.44  0.030 / 0.050
G21     119.5          66.8                8.1 +/-    0.86       8.7 +/-    0.86  0.030 / 0.040
G24     88.7           29.7                8.0 +/-    0.58      14.1 +/-    0.58  0.040 / 0.040
G27     289.4          37.6                7.9 +/-    1.51      12.0 +/-    1.51  0.030 / 0.040
G32     214.3          42.9                9.4 +/-    1.66      13.0 +/-    1.66  0.120 / 0.230