PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/29-21:12:30
G02     353.0          76.4                8.7 +/-    1.03       8.9 +/-    1.03  0.020 / 0.020
G05     162.1          37.7               12.2 +/-    0.82      18.5 +/-    0.82  0.030 / 0.030
G06     43.1           35.3                8.0 +/-    1.78      12.6 +/-    1.78  0.040 / 0.070
G12     299.7          77.3               10.1 +/-    0.84      10.3 +/-    0.84  0.050 / 0.060
G17     88.9           10.0               10.4 +/-    2.84      29.0 +/-    2.84  0.380 / 0.360
G19     77.2           27.1                8.2 +/-    1.43      15.3 +/-    1.43  0.220 / 0.380
G24     224.6          19.8               12.5 +/-    4.20      27.8 +/-    4.20  0.140 / 0.290
G25     316.5          32.3                8.5 +/-    1.94      14.2 +/-    1.94  0.200 / 0.270