PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/13-15:28:10
G08     313.8          16.3                5.3 +/-    1.72      12.7 +/-    1.72  0.060 / 0.060
G10     323.2          58.3                7.2 +/-    1.25       8.3 +/-    1.25  0.060 / 0.060
G14     216.2          26.4                7.2 +/-    1.07      13.6 +/-    1.07  0.040 / 0.040
G15     46.1           12.7                5.0 +/-    1.69      13.1 +/-    1.69  0.050 / 0.040
G18     35.7           59.8                6.7 +/-    0.24       7.6 +/-    0.24  0.070 / 0.120
G20     81.9           11.1                7.7 +/-    3.20      20.9 +/-    3.20  0.070 / 0.120
G21     130.1          56.9                9.5 +/-    0.60      11.2 +/-    0.60  0.160 / 0.430
G24     79.9           30.4                8.4 +/-    0.68      14.6 +/-    0.68  0.170 / 0.480
G27     278.8          38.0                6.7 +/-    1.51      10.1 +/-    1.51  0.070 / 0.180
G32     220.1          48.1                9.8 +/-    1.12      12.7 +/-    1.12  0.070 / 0.180