PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/21-06:12:50
G01     54.9           27.7                3.0 +/-    0.97       5.5 +/-    0.97  0.030 / 0.040
G06     178.3          18.0                5.0 +/-    0.46      11.5 +/-    0.46  0.040 / 0.050
G07     143.2          19.3                8.1 +/-    1.07      18.0 +/-    1.07  0.100 / 0.220
G11     47.8           24.7                3.8 +/-    2.04       7.4 +/-    2.04  0.110 / 0.210
G13     257.0          35.0                7.5 +/-    1.46      12.0 +/-    1.46  0.070 / 0.160
G15     288.3          17.0                3.7 +/-    2.11       8.8 +/-    2.11  0.060 / 0.190
G17     272.5          78.7                7.3 +/-    0.43       7.5 +/-    0.43  0.040 / 0.050
G19     235.7          56.1                8.7 +/-    1.14      10.2 +/-    1.14  0.040 / 0.050
G28     26.3           59.7                6.0 +/-    0.46       6.9 +/-    0.46  0.040 / 0.060
G30     147.0          52.9                9.0 +/-    1.00      11.0 +/-    1.00  0.040 / 0.060