PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/09-04:43:00
G01     314.4          25.9                4.4 +/-    1.67       8.3 +/-    1.67  0.030 / 0.030
G10     92.9           48.4                4.6 +/-    0.91       5.9 +/-    0.91  0.030 / 0.020
G11     291.4          28.5                4.9 +/-    1.07       8.9 +/-    1.07  0.120 / 0.150
G14     334.1          70.6                2.5 +/-    0.39       2.7 +/-    0.39  0.110 / 0.150
G18     109.1          23.5                4.3 +/-    2.45       8.7 +/-    2.45  0.040 / 0.030
G22     305.2          18.1                5.6 +/-    2.01      13.0 +/-    2.01  0.040 / 0.030
G25     87.7           12.5                4.4 +/-    1.18      11.5 +/-    1.18  0.100 / 0.130
G31     173.7          52.7                6.7 +/-    0.65       8.1 +/-    0.65  0.100 / 0.140
G32     21.1           61.2                4.6 +/-    0.57       5.1 +/-    0.57  0.040 / 0.050