PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/17-08:57:40
G02     201.8          25.5                6.7 +/-    1.53      13.0 +/-    1.53  0.240 / 0.350
G06     167.9          60.4                8.5 +/-    1.04       9.7 +/-    1.04  0.240 / 0.250
G17     31.3           52.9                4.4 +/-    0.94       5.4 +/-    0.94  0.060 / 0.090
G19     332.5          69.5                5.4 +/-    0.66       5.7 +/-    0.66  0.080 / 0.080
G24     302.3          37.1                5.0 +/-    1.04       7.7 +/-    1.04  0.030 / 0.030
G28     93.6           37.5                6.6 +/-    0.66      10.0 +/-    0.66  0.030 / 0.030
G30     158.2          10.3                6.1 +/-    2.99      16.8 +/-    2.99  0.040 / 0.040