PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/23-01:42:50
G02     220.2          65.6                9.5 +/-    0.96      10.3 +/-    0.96  0.070 / 0.060
G06     52.8           75.5                7.5 +/-    0.67       7.7 +/-    0.67  0.100 / 0.100
G12     318.8          37.3                6.7 +/-    1.89      10.2 +/-    1.89  0.120 / 0.260
G17     61.5           28.3                4.5 +/-    1.96       8.2 +/-    1.96  0.190 / 0.270
G19     43.7           46.5                6.0 +/-    1.05       8.0 +/-    1.05  0.040 / 0.050
G24     257.2          40.5                9.0 +/-    4.49      13.0 +/-    4.49  0.040 / 0.050
G28     124.3          13.8                6.2 +/-    1.61      15.8 +/-    1.61  0.050 / 0.060