PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/26-13:57:50
G02     223.7          63.3                7.0 +/-    1.34       7.7 +/-    1.34  0.050 / 0.080
G06     45.8           66.9                6.1 +/-    0.55       6.6 +/-    0.55  0.060 / 0.080
G12     321.2          45.4                5.9 +/-    0.98       8.0 +/-    0.98  0.040 / 0.040
G17     64.1           26.5                4.9 +/-    2.69       9.3 +/-    2.69  0.040 / 0.040
G19     42.7           48.1                5.3 +/-    0.95       6.9 +/-    0.95  0.030 / 0.020
G24     252.6          39.5                7.4 +/-    3.19      10.8 +/-    3.19  0.030 / 0.030