PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/07/29-03:12:40
G08     306.7          20.5                6.5 +/-    3.33      14.1 +/-    3.33  0.100 / 0.110
G10     333.0          60.0                4.9 +/-    0.38       5.6 +/-    0.38  0.120 / 0.070
G14     219.1          34.1                8.7 +/-    1.42      14.0 +/-    1.42  0.050 / 0.070
G15     47.0           11.9                3.9 +/-    2.76      10.5 +/-    2.76  0.050 / 0.080
G18     38.4           59.7                6.1 +/-    0.50       6.9 +/-    0.50  0.030 / 0.030
G21     135.3          55.6                7.9 +/-    0.42       9.4 +/-    0.42  0.030 / 0.030
G24     73.7           30.5                5.9 +/-    1.20      10.3 +/-    1.20  0.030 / 0.040
G27     270.8          37.3                6.9 +/-    2.03      10.6 +/-    2.03  0.030 / 0.050
G32     225.0          53.0                8.0 +/-    2.18       9.8 +/-    2.18  0.050 / 0.070