PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/11-19:42:50
G02     210.1          51.1               15.0 +/-    1.00      18.6 +/-    1.00  0.080 / 0.100
G06     100.6          79.8               13.4 +/-    0.76      13.6 +/-    0.76  0.050 / 0.110
G12     314.2          26.2               11.5 +/-    1.86      21.8 +/-    1.86  0.070 / 0.190
G17     49.0           38.8               11.5 +/-    0.39      17.0 +/-    0.39  0.070 / 0.160
G19     29.4           54.2               13.0 +/-    0.30      15.7 +/-    0.30  0.070 / 0.080
G24     277.0          42.3               13.0 +/-    1.40      18.3 +/-    1.40  0.060 / 0.080
G28     114.4          24.8               13.3 +/-    0.80      26.1 +/-    0.80  0.100 / 0.170