PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/14-16:27:50
G02     201.1          22.3               10.0 +/-    1.67      20.8 +/-    1.67  0.050 / 0.080
G06     168.5          57.1               12.0 +/-    0.71      13.9 +/-    0.71  0.050 / 0.090
G13     223.9          11.4               10.1 +/-    3.10      27.3 +/-    3.10  0.380 / 0.170
G17     21.3           59.7               11.0 +/-    1.33      12.6 +/-    1.33  0.230 / 0.190
G19     336.2          70.5               11.0 +/-    0.60      11.6 +/-    0.60  0.080 / 0.120
G24     307.9          31.2               10.9 +/-    0.96      18.7 +/-    0.96  0.090 / 0.130
G28     86.9           42.9               10.6 +/-    1.32      14.8 +/-    1.32  0.040 / 0.040
G30     156.9          10.7               10.5 +/-    3.64      28.9 +/-    3.64  0.050 / 0.030