PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/24-16:12:40
G02     223.3          63.8                7.9 +/-    1.77       8.7 +/-    1.77  0.050 / 0.080
G06     45.9           65.6                8.3 +/-    0.51       9.0 +/-    0.51  0.110 / 0.090
G12     322.0          47.5                7.8 +/-    0.67      10.1 +/-    0.67  0.050 / 0.050
G17     64.0           26.6                7.1 +/-    1.74      13.3 +/-    1.74  0.040 / 0.040
G19     43.2           47.7                7.5 +/-    1.17       9.8 +/-    1.17  0.020 / 0.020
G24     254.0          39.6                9.3 +/-    3.59      13.6 +/-    3.59  0.030 / 0.020