PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/09-14:43:10
G02     201.7          22.4               10.2 +/-    1.52      21.1 +/-    1.52  0.040 / 0.080
G06     167.1          58.7               11.0 +/-    1.33      12.6 +/-    1.33  0.040 / 0.070
G13     223.1          10.7                9.0 +/-    2.37      24.6 +/-    2.37  0.080 / 0.130
G17     20.6           59.9                8.0 +/-    0.47       9.1 +/-    0.47  0.110 / 0.120
G19     340.4          70.0                9.8 +/-    0.60      10.3 +/-    0.60  0.130 / 0.420
G24     307.3          31.6                8.1 +/-    0.86      13.7 +/-    0.86  0.130 / 0.440
G28     87.9           42.7                8.6 +/-    1.05      11.9 +/-    1.05  0.080 / 0.140
G30     157.4          10.8               10.2 +/-    1.62      28.0 +/-    1.62  0.070 / 0.150