PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/25-16:58:00
G02     218.6          60.7               12.9 +/-    1.34      14.6 +/-    1.34  0.050 / 0.080
G06     52.1           72.1               12.7 +/-    0.30      13.3 +/-    0.30  0.060 / 0.070
G12     319.8          39.3               11.9 +/-    0.87      17.5 +/-    0.87  0.060 / 0.070
G17     61.8           28.1               11.5 +/-    2.17      20.9 +/-    2.17  0.060 / 0.080
G19     45.4           45.5               11.6 +/-    1.16      15.5 +/-    1.16  0.240 / 0.360
G24     263.7          40.8               12.7 +/-    1.71      18.3 +/-    1.71  0.160 / 0.300
G28     125.1          10.8               13.2 +/-    2.79      36.2 +/-    2.79  0.070 / 0.100