PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/21-04:28:10
G01     108.5          22.9                9.6 +/-    1.06      19.6 +/-    1.06  0.030 / 0.030
G07     100.0          61.0                6.9 +/-    0.88       7.8 +/-    0.88  0.030 / 0.040
G08     42.3           23.3                3.0 +/-    1.00       6.0 +/-    1.00  0.060 / 0.100
G09     173.1          14.6                6.1 +/-    1.00      15.2 +/-    1.00  0.060 / 0.150
G11     98.7           44.6                8.1 +/-    0.91      10.9 +/-    0.91  0.050 / 0.080
G13     311.8          27.5                6.2 +/-    2.78      11.4 +/-    2.78  0.040 / 0.090
G17     203.2          33.8                8.6 +/-    1.67      13.9 +/-    1.67  0.300 / 0.350
G19     206.8          11.6                3.3 +/-   14.62       8.9 +/-   14.62  0.240 / 0.280
G28     295.4          55.5                6.3 +/-    0.81       7.4 +/-    0.81  0.040 / 0.060
G30     354.2          73.8                7.5 +/-    0.44       7.7 +/-    0.44  0.050 / 0.070