PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/25-14:28:10
G02     210.8          52.0               12.0 +/-    1.44      14.8 +/-    1.44  0.070 / 0.110
G06     93.4           80.0                9.8 +/-    0.73      10.0 +/-    0.73  0.070 / 0.120
G12     316.1          29.3                8.1 +/-    0.94      14.5 +/-    0.94  0.080 / 0.080
G17     53.4           34.8                6.4 +/-    0.82      10.2 +/-    0.82  0.110 / 0.080
G19     33.5           52.4                7.5 +/-    0.51       9.1 +/-    0.51  0.030 / 0.070
G24     277.6          42.0                8.6 +/-    2.10      12.1 +/-    2.10  0.040 / 0.070
G28     118.1          18.3               10.3 +/-    0.89      23.8 +/-    0.89  0.030 / 0.030