PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/18-22:43:00
G01     69.3           32.5               10.2 +/-    2.15      17.0 +/-    2.15  0.070 / 0.120
G07     137.6          25.3                9.0 +/-    1.11      17.4 +/-    1.11  0.090 / 0.110
G11     51.9           29.1                7.7 +/-    1.97      13.8 +/-    1.97  0.050 / 0.100
G13     272.5          38.1                9.5 +/-    1.96      14.2 +/-    1.96  0.050 / 0.120
G15     301.1          15.7                5.8 +/-    1.66      14.2 +/-    1.66  0.040 / 0.040
G17     235.1          71.8               10.1 +/-    0.42      10.6 +/-    0.42  0.050 / 0.050
G18     46.0           15.7                7.1 +/-    1.75      17.4 +/-    1.75  0.030 / 0.030
G19     224.3          42.6               10.0 +/-    2.01      13.9 +/-    2.01  0.030 / 0.030
G28     13.8           60.3                8.3 +/-    1.63       9.4 +/-    1.63  0.100 / 0.070
G30     136.6          60.4               10.0 +/-    0.32      11.4 +/-    0.32  0.100 / 0.060