PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/23-22:12:40
G08     310.6          18.9               10.0 +/-    1.50      22.6 +/-    1.50  0.080 / 0.070
G10     327.9          59.4                8.4 +/-    0.85       9.6 +/-    0.85  0.060 / 0.080
G14     216.8          27.9               14.0 +/-    1.80      25.7 +/-    1.80  0.040 / 0.050
G15     46.5           17.0                5.9 +/-    0.85      14.0 +/-    0.85  0.040 / 0.050
G20     32.9           61.4                9.5 +/-    0.75      10.6 +/-    0.75  0.120 / 0.180
G21     131.8          59.2               12.2 +/-    0.67      14.0 +/-    0.67  0.110 / 0.220
G24     74.0           29.0                8.7 +/-    0.66      15.6 +/-    0.66  0.070 / 0.110
G27     279.4          37.3               11.9 +/-    1.38      18.1 +/-    1.38  0.060 / 0.110
G32     221.0          51.0               12.4 +/-    1.27      15.5 +/-    1.27  0.150 / 0.250