PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/29-18:13:00
G02     232.4          70.7               12.4 +/-    0.72      13.0 +/-    0.72  0.090 / 0.250
G05     173.2          13.1               16.0 +/-    4.00      41.7 +/-    4.00  0.060 / 0.240
G06     42.0           59.8               12.4 +/-    0.41      14.1 +/-    0.41  0.040 / 0.070
G12     322.6          52.5               11.4 +/-    1.07      14.0 +/-    1.07  0.040 / 0.060
G17     68.4           23.9               11.1 +/-    0.73      22.3 +/-    0.73  0.040 / 0.060
G19     50.9           43.4               11.5 +/-    0.71      15.8 +/-    0.71  0.040 / 0.040
G24     247.2          36.6               14.9 +/-    1.53      23.0 +/-    1.53  0.060 / 0.120