PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/22-10:42:40
G02     202.1          23.9                5.9 +/-    1.13      11.8 +/-    1.13  0.250 / 0.480
G06     167.1          60.3               10.4 +/-    0.45      11.8 +/-    0.45  0.260 / 0.480
G17     30.3           53.7                6.5 +/-    0.66       7.9 +/-    0.66  0.060 / 0.080
G19     328.2          69.6                5.8 +/-    0.61       6.1 +/-    0.61  0.070 / 0.090
G24     303.4          36.1                4.6 +/-    2.92       7.2 +/-    2.92  0.040 / 0.030
G28     93.1           37.6               10.2 +/-    0.88      15.5 +/-    0.88  0.030 / 0.040
G30     158.2          11.0                7.4 +/-    4.47      20.2 +/-    4.47  0.030 / 0.030