PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/25-19:27:30
G02     229.1          70.1               11.5 +/-    0.92      12.2 +/-    0.92  0.130 / 0.120
G05     173.6          11.4                9.5 +/-   25.78      25.8 +/-   25.78  0.090 / 0.100
G06     43.0           64.7               10.2 +/-    0.44      11.2 +/-    0.44  0.140 / 0.400
G12     320.3          44.0                9.9 +/-    2.30      13.6 +/-    2.30  0.150 / 0.460
G17     64.8           27.2                8.6 +/-    1.04      15.9 +/-    1.04  0.040 / 0.050
G19     51.6           41.3                9.1 +/-    0.86      13.0 +/-    0.86  0.050 / 0.050
G24     251.8          37.6               12.0 +/-    1.01      18.1 +/-    1.01  0.050 / 0.080
G28     127.9          10.5               10.8 +/-    3.75      29.7 +/-    3.75  0.060 / 0.070