PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/02/07-17:58:00
G01     233.7          24.4               10.4 +/-    2.10      20.5 +/-    2.10  0.040 / 0.030
G03     304.9          61.9                8.9 +/-    0.58      10.0 +/-    0.58  0.040 / 0.040
G14     77.7           29.5                7.9 +/-    0.79      14.0 +/-    0.79  0.070 / 0.110
G16     157.2          32.6               10.9 +/-    1.50      18.1 +/-    1.50  0.070 / 0.090
G18     205.9          12.5               11.4 +/-    3.11      30.2 +/-    3.11  0.190 / 0.220
G22     246.2          75.9                9.5 +/-    0.49       9.8 +/-    0.49  0.160 / 0.190
G23     298.9          28.9                7.8 +/-    1.76      14.0 +/-    1.76  0.070 / 0.150
G26     124.1          50.0               10.2 +/-    0.39      12.9 +/-    0.39  0.070 / 0.160
G31     41.0           45.3                7.0 +/-    1.13       9.3 +/-    1.13  0.150 / 0.800
G32     90.3           14.5                8.6 +/-    2.26      21.6 +/-    2.26  0.200 / 0.970