PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/25-02:27:50
G01     317.5          21.3                7.8 +/-    2.31      16.7 +/-    2.31  0.150 / 0.220
G08     252.1          11.0               12.6 +/-    3.33      34.4 +/-    3.33  0.160 / 0.300
G10     86.1           50.6                8.7 +/-    1.05      10.9 +/-    1.05  0.040 / 0.040
G11     298.2          25.4                8.8 +/-    0.89      17.1 +/-    0.89  0.040 / 0.040
G14     307.7          70.8                8.6 +/-    0.48       9.0 +/-    0.48  0.140 / 0.210
G18     300.2          43.4                8.0 +/-    5.07      11.0 +/-    5.07  0.080 / 0.160
G20     86.9           61.6               15.5 +/-    1.36      17.3 +/-    1.36  0.120 / 0.370
G31     172.6          48.5               11.2 +/-    1.30      14.4 +/-    1.30  0.140 / 0.330
G32     18.5           63.1                7.4 +/-    0.55       8.1 +/-    0.55  0.060 / 0.100