PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/31-16:28:00
G01     318.0          20.2                7.2 +/-    1.53      15.7 +/-    1.53  0.050 / 0.070
G08     256.7          11.7                8.4 +/-    2.49      22.5 +/-    2.49  0.060 / 0.110
G10     83.8           52.0                9.1 +/-    0.70      11.2 +/-    0.70  0.160 / 0.280
G11     302.3          22.9                5.5 +/-    1.74      11.3 +/-    1.74  0.110 / 0.260
G14     303.3          70.5                8.3 +/-    0.83       8.7 +/-    0.83  0.040 / 0.050
G22     302.2          13.2                7.5 +/-    1.86      19.5 +/-    1.86  0.050 / 0.050
G31     175.3          45.4               13.4 +/-    1.08      18.0 +/-    1.08  0.040 / 0.040
G32     13.4           65.1                7.3 +/-    0.67       7.9 +/-    0.67  0.040 / 0.050