PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/25-08:43:00
G01     317.8          20.7                5.0 +/-    1.72      10.9 +/-    1.72  0.040 / 0.040
G08     256.6          11.4                2.2 +/-   19.25       6.0 +/-   19.25  0.040 / 0.050
G10     85.1           51.3                4.0 +/-    1.30       5.0 +/-    1.30  0.280 / 0.290
G11     300.6          24.0                4.2 +/-    1.90       8.4 +/-    1.90  0.250 / 0.290
G14     295.8          68.8                4.0 +/-    0.54       4.2 +/-    0.54  0.160 / 0.260
G18     301.7          42.1                5.3 +/-    1.25       7.4 +/-    1.25  0.310 / 0.350
G20     112.1          12.4                4.1 +/-    1.54      10.9 +/-    1.54  0.210 / 0.280
G22     303.4          16.3                2.6 +/-    4.02       6.2 +/-    4.02  0.170 / 0.320
G31     172.8          47.9                5.6 +/-    1.02       7.2 +/-    1.02  0.060 / 0.170
G32     17.4           63.6                4.1 +/-    0.50       4.6 +/-    0.50  0.080 / 0.140