PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/10-17:43:00
G02     213.0          52.3               16.4 +/-    0.97      20.1 +/-    0.97  0.050 / 0.080
G06     73.1           77.7               13.9 +/-    0.40      14.1 +/-    0.40  0.050 / 0.060
G12     317.6          32.9               12.0 +/-    1.28      19.7 +/-    1.28  0.040 / 0.060
G17     55.8           32.8                9.2 +/-    0.86      15.2 +/-    0.86  0.060 / 0.060
G19     37.1           50.4               11.3 +/-    1.61      14.2 +/-    1.61  0.080 / 0.110
G24     273.9          42.0               14.3 +/-    2.05      20.2 +/-    2.05  0.060 / 0.100
G28     120.1          16.5               10.3 +/-    0.84      24.8 +/-    0.84  0.040 / 0.080