PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/09-23:43:00
G02     358.4          75.4               10.6 +/-    1.31      10.9 +/-    1.31  0.030 / 0.030
G05     161.4          37.9               14.7 +/-    1.32      22.2 +/-    1.32  0.030 / 0.020
G06     41.7           38.8                9.8 +/-    1.01      14.5 +/-    1.01  0.320 / 0.360
G12     307.1          71.9               10.4 +/-    0.47      10.9 +/-    0.47  0.220 / 0.360
G19     78.3           24.3               13.8 +/-    1.80      27.4 +/-    1.80  0.090 / 0.130
G24     224.8          19.8               14.8 +/-    3.00      32.7 +/-    3.00  0.110 / 0.110
G25     316.2          32.5                8.7 +/-    1.46      14.4 +/-    1.46  0.040 / 0.070
G29     289.9          13.8               11.4 +/-    2.05      29.1 +/-    2.05  0.050 / 0.070