PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/13-17:28:00
G10     276.1          43.4                8.2 +/-    1.70      11.4 +/-    1.70  0.040 / 0.030
G13     38.8           11.8                7.2 +/-    3.26      19.4 +/-    3.26  0.030 / 0.030
G15     53.5           44.8                8.3 +/-    0.89      11.3 +/-    0.89  0.220 / 0.300
G20     314.0          63.3                8.9 +/-    0.79       9.8 +/-    0.79  0.500 / 0.460
G21     35.2           75.9               10.2 +/-    0.70      10.5 +/-    0.70  0.140 / 0.150
G24     109.7          18.9                9.8 +/-    1.16      22.2 +/-    1.16  0.110 / 0.160
G27     315.5          23.1                7.5 +/-    1.29      15.3 +/-    1.29  0.030 / 0.040
G29     168.0          22.6                9.3 +/-    2.16      19.2 +/-    2.16  0.050 / 0.050
G32     205.6          16.3               11.0 +/-    2.38      26.5 +/-    2.38  0.080 / 0.150