PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/26-21:58:10
G02     21.5           64.3                8.9 +/-    0.39       9.8 +/-    0.39  0.030 / 0.050
G05     151.5          52.9               13.1 +/-    0.74      16.0 +/-    0.74  0.030 / 0.050
G06     49.0           22.5                8.2 +/-    0.69      17.1 +/-    0.69  0.030 / 0.030
G12     213.9          77.0                9.8 +/-    0.42      10.0 +/-    0.42  0.020 / 0.040
G19     90.8           18.0               11.6 +/-    0.91      26.9 +/-    0.91  0.060 / 0.080
G25     308.7          45.7                9.7 +/-    2.45      13.0 +/-    2.45  0.060 / 0.090
G29     299.5          19.7               10.5 +/-    1.06      23.3 +/-    1.06  0.040 / 0.050