PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/02-13:12:40
G02     202.3          30.3                8.7 +/-    1.31      15.1 +/-    1.31  0.060 / 0.140
G06     167.3          64.0               10.9 +/-    0.95      12.0 +/-    0.95  0.050 / 0.120
G12     305.6          12.0                3.0 +/-    4.96       8.1 +/-    4.96  0.140 / 0.350
G17     35.1           50.0                6.2 +/-    0.88       7.8 +/-    0.88  0.180 / 0.210
G19     358.3          66.5                6.5 +/-    0.57       7.0 +/-    0.57  0.070 / 0.120
G24     303.3          34.9                5.4 +/-    1.06       8.6 +/-    1.06  0.070 / 0.110
G28     99.4           33.0                7.1 +/-    1.55      11.8 +/-    1.55  0.030 / 0.040