PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/02/22-01:27:50
G01     43.1           19.2                5.1 +/-    2.94      11.5 +/-    2.94  0.140 / 0.210
G06     179.3          30.3                9.2 +/-    1.48      16.0 +/-    1.48  0.250 / 0.160
G13     240.6          25.1                8.2 +/-    3.14      16.0 +/-    3.14  0.040 / 0.030
G15     274.5          13.5                5.9 +/-    1.53      15.1 +/-    1.53  0.040 / 0.030
G17     358.9          72.5                8.3 +/-    0.63       8.6 +/-    0.63  0.090 / 0.150
G19     264.1          66.2                8.8 +/-    0.86       9.5 +/-    0.86  0.190 / 0.250
G24     316.9          18.0                4.8 +/-    6.70      11.1 +/-    6.70  0.040 / 0.050
G28     62.2           51.2                6.8 +/-    0.73       8.4 +/-    0.73  0.040 / 0.050
G30     153.4          31.9                8.7 +/-    0.96      14.6 +/-    0.96  0.130 / 0.200