PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/18-19:43:10
G08     273.4          21.4                9.5 +/-    1.21      20.1 +/-    1.21  0.040 / 0.050
G10     45.8           60.8                8.3 +/-    0.85       9.4 +/-    0.85  0.040 / 0.050
G11     315.8          12.7                4.9 +/-   12.60      12.8 +/-   12.60  0.120 / 0.210
G14     250.7          61.1                8.6 +/-    0.90       9.7 +/-    0.90  0.130 / 0.260
G20     86.8           42.0                8.4 +/-    1.18      11.9 +/-    1.18  0.250 / 0.330
G21     152.6          21.5                9.6 +/-    2.80      20.3 +/-    2.80  0.160 / 0.360
G24     41.5           12.5                7.8 +/-    3.06      20.7 +/-    3.06  0.070 / 0.160
G27     240.3          21.9                8.6 +/-    1.81      18.0 +/-    1.81  0.070 / 0.240
G31     181.4          20.3               10.8 +/-    1.06      23.5 +/-    1.06  0.030 / 0.020
G32     303.6          76.2                8.3 +/-    0.58       8.6 +/-    0.58  0.030 / 0.020