PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/02-21:28:10
G02     213.0          56.3               20.2 +/-    1.17      23.7 +/-    1.17  0.040 / 0.080
G06     68.0           76.4               15.4 +/-    0.57      15.8 +/-    0.57  0.070 / 0.090
G12     317.6          33.7               13.9 +/-    1.06      22.6 +/-    1.06  0.050 / 0.090
G17     52.7           36.8               12.9 +/-    0.46      19.8 +/-    0.46  0.050 / 0.100
G19     32.3           53.1               15.4 +/-    0.59      18.7 +/-    0.59  0.030 / 0.070
G24     270.1          42.4               16.3 +/-    1.16      22.8 +/-    1.16  0.050 / 0.080
G28     120.0          16.4               17.3 +/-    1.90      41.7 +/-    1.90  0.110 / 0.360