PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/07-21:12:50
G02     20.3           65.0                8.9 +/-    0.51       9.7 +/-    0.51  0.030 / 0.050
G05     152.3          52.4               14.2 +/-    0.75      17.4 +/-    0.75  0.040 / 0.050
G06     48.8           22.7                6.9 +/-    0.76      14.2 +/-    0.76  0.020 / 0.030
G12     213.1          77.2               11.0 +/-    0.60      11.3 +/-    0.60  0.030 / 0.040
G19     90.2           18.4                9.6 +/-    0.67      22.0 +/-    0.67  0.040 / 0.050
G25     309.0          45.6               10.0 +/-    2.56      13.4 +/-    2.56  0.030 / 0.040
G29     299.2          19.3               10.5 +/-    1.53      23.5 +/-    1.53  0.070 / 0.070