PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/04-15:28:10
G02     205.6          38.9               15.6 +/-    0.92      23.0 +/-    0.92  0.070 / 0.180
G03     53.7           9.5                11.1 +/-    1.83      31.3 +/-    1.83  0.130 / 0.240
G06     149.2          74.7               13.6 +/-    0.46      14.1 +/-    0.46  0.110 / 0.060
G12     311.0          20.0               10.2 +/-    0.84      22.4 +/-    0.84  0.070 / 0.080
G17     43.8           42.6               11.0 +/-    1.44      15.4 +/-    1.44  0.070 / 0.230
G19     17.2           60.3               11.7 +/-    0.85      13.2 +/-    0.85  0.140 / 0.140
G24     293.0          39.6               12.9 +/-    4.24      18.9 +/-    4.24  0.040 / 0.050
G28     108.6          26.7                9.9 +/-    0.72      18.7 +/-    0.72  0.040 / 0.040