PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/23-01:12:30
G02     209.3          51.5               11.2 +/-    1.04      13.8 +/-    1.04  0.050 / 0.060
G06     129.4          80.5                8.9 +/-    0.70       9.0 +/-    0.70  0.080 / 0.080
G12     313.9          25.2                6.0 +/-    0.98      11.7 +/-    0.98  0.080 / 0.170
G17     50.3           37.0                7.3 +/-    1.23      11.1 +/-    1.23  0.090 / 0.150
G19     26.8           55.5                8.2 +/-    1.72       9.7 +/-    1.72  0.040 / 0.030
G24     275.9          43.0                9.4 +/-    1.58      13.0 +/-    1.58  0.040 / 0.050
G28     114.4          24.0                9.1 +/-    2.25      18.3 +/-    2.25  0.080 / 0.110