PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/14-20:12:40
G01     310.8          30.1                8.2 +/-    1.54      14.3 +/-    1.54  0.070 / 0.200
G10     100.8          43.9                9.5 +/-    0.57      13.1 +/-    0.57  0.080 / 0.180
G11     287.7          27.8                7.3 +/-    1.20      13.5 +/-    1.20  0.020 / 0.040
G14     346.2          68.8                7.7 +/-    1.03       8.2 +/-    1.03  0.030 / 0.040
G18     114.6          16.3                9.0 +/-    1.79      21.7 +/-    1.79  0.040 / 0.050
G22     307.7          21.6                6.7 +/-    3.11      14.2 +/-    3.11  0.040 / 0.050
G25     86.4           15.1                9.2 +/-    1.09      22.7 +/-    1.09  0.030 / 0.040
G31     173.0          58.4               11.9 +/-    1.00      13.8 +/-    1.00  0.040 / 0.040
G32     29.7           56.5                6.3 +/-    0.59       7.4 +/-    0.59  0.080 / 0.150