PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/11-17:27:40
G08     267.3          18.8                8.5 +/-    2.84      19.2 +/-    2.84  0.130 / 0.270
G10     62.3           56.9                7.9 +/-    1.01       9.2 +/-    1.01  0.490 / 0.200
G11     314.8          13.3                6.6 +/-    2.42      17.2 +/-    2.42  0.050 / 0.050
G14     258.9          62.0               10.4 +/-    0.83      11.6 +/-    0.83  0.050 / 0.050
G20     96.5           34.0                7.7 +/-    0.64      12.5 +/-    0.64  0.170 / 0.350
G21     154.8          15.5                8.8 +/-    4.87      21.6 +/-    4.87  0.170 / 0.540
G24     40.7           11.3                7.0 +/-    4.06      19.0 +/-    4.06  0.100 / 0.170
G27     232.1          16.9                9.4 +/-    2.30      22.3 +/-    2.30  0.070 / 0.150
G31     178.8          28.9               11.7 +/-    1.80      20.9 +/-    1.80  0.030 / 0.030
G32     343.2          74.4                8.8 +/-    0.61       9.1 +/-    0.61  0.030 / 0.030