PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/22-04:12:30
G07     326.7          55.5                4.9 +/-    0.35       5.9 +/-    0.35  0.130 / 0.170
G08     106.3          50.0                7.9 +/-    0.45      10.0 +/-    0.45  0.110 / 0.210
G09     203.6          79.0                6.9 +/-    0.43       7.0 +/-    0.43  0.030 / 0.030
G16     44.6           16.2                4.0 +/-    2.33       9.6 +/-    2.33  0.020 / 0.030
G23     153.9          48.6                8.6 +/-    0.70      11.0 +/-    0.70  0.040 / 0.050
G27     59.4           33.3                6.1 +/-    1.05      10.0 +/-    1.05  0.030 / 0.040
G28     233.7          26.1                6.3 +/-    2.53      11.9 +/-    2.53  0.130 / 0.300
G30     298.1          32.2                3.6 +/-    1.88       6.1 +/-    1.88  0.160 / 0.320