PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/07-21:12:30
G08     311.4          18.5               14.4 +/-    0.80      32.9 +/-    0.80  0.040 / 0.040
G10     325.7          59.0               16.6 +/-    0.67      19.1 +/-    0.67  0.040 / 0.050
G14     216.2          27.0               26.1 +/-    2.62      48.6 +/-    2.62  0.060 / 0.080
G15     46.3           17.3               14.1 +/-    2.24      33.2 +/-    2.24  0.070 / 0.080
G20     30.5           61.8               18.0 +/-    1.62      20.2 +/-    1.62  0.110 / 0.230
G21     130.4          60.0               20.5 +/-    0.37      23.3 +/-    0.37  0.160 / 0.200
G24     75.0           28.9               16.4 +/-    1.43      29.4 +/-    1.43  0.110 / 0.190
G32     220.1          49.5               23.5 +/-    1.72      29.8 +/-    1.72  0.090 / 0.180