PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/15-01:43:00
G08     269.3          16.9                9.7 +/-    2.31      23.1 +/-    2.31  0.050 / 0.050
G10     68.0           55.7                7.6 +/-    0.70       9.0 +/-    0.70  0.040 / 0.060
G11     310.3          18.0                6.4 +/-    2.52      14.7 +/-    2.52  0.130 / 0.260
G14     270.4          66.8                6.3 +/-    1.21       6.8 +/-    1.21  0.160 / 0.330
G18     310.9          34.8                5.3 +/-    1.92       8.5 +/-    1.92  0.040 / 0.040
G20     98.4           34.5                6.2 +/-    0.75      10.0 +/-    0.75  0.030 / 0.040
G21     155.8          13.7                9.2 +/-    2.53      23.6 +/-    2.53  0.200 / 0.500
G27     230.0          14.5                9.9 +/-    2.68      24.9 +/-    2.68  0.120 / 0.400
G31     176.4          34.4                9.2 +/-    1.79      14.8 +/-    1.79  0.090 / 0.240
G32     346.3          73.1                7.4 +/-    0.91       7.6 +/-    0.91  0.080 / 0.220