PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/07/30-03:28:10
G08     297.9          22.9                7.9 +/-    1.42      16.1 +/-    1.42  0.070 / 0.090
G10     351.5          62.3                4.9 +/-    0.59       5.5 +/-    0.59  0.080 / 0.110
G14     225.2          42.6                9.9 +/-    0.65      13.8 +/-    0.65  0.030 / 0.040
G18     52.8           55.6                4.8 +/-    0.52       5.7 +/-    0.52  0.030 / 0.030
G21     142.4          46.6                7.8 +/-    0.79      10.3 +/-    0.79  0.060 / 0.080
G24     63.5           28.8                3.8 +/-    0.57       6.9 +/-    0.57  0.080 / 0.090
G27     259.5          34.3                8.7 +/-    1.26      14.0 +/-    1.26  0.050 / 0.080
G32     235.4          61.5                9.2 +/-    0.94      10.4 +/-    0.94  0.040 / 0.070