PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/14-15:42:30
G02     221.7          64.8               10.7 +/-    0.65      11.7 +/-    0.65  0.040 / 0.070
G06     47.7           69.9               10.0 +/-    0.36      10.5 +/-    0.36  0.040 / 0.080
G12     320.4          41.6                7.5 +/-    1.23      10.7 +/-    1.23  0.040 / 0.040
G17     64.3           26.3                7.8 +/-    0.95      14.9 +/-    0.95  0.030 / 0.050
G19     48.5           43.6                8.2 +/-    1.94      11.3 +/-    1.94  0.030 / 0.030
G24     259.6          39.8                9.3 +/-    1.06      13.6 +/-    1.06  0.030 / 0.060