PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/08-15:12:50
G02     224.4          62.5               10.8 +/-    1.33      12.0 +/-    1.33  0.050 / 0.040
G06     45.2           66.0               10.3 +/-    0.56      11.2 +/-    0.56  0.040 / 0.040
G12     321.6          46.9                9.8 +/-    0.67      12.9 +/-    0.67  0.060 / 0.080
G17     64.3           26.5                7.6 +/-    1.17      14.3 +/-    1.17  0.090 / 0.080
G19     43.2           47.9                9.2 +/-    0.91      11.9 +/-    0.91  0.030 / 0.020
G24     252.4          39.2               11.5 +/-    3.54      17.0 +/-    3.54  0.030 / 0.030