PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/16-19:42:50
G01     316.6          22.7                7.7 +/-    1.34      15.8 +/-    1.34  0.090 / 0.180
G10     88.1           50.3                8.0 +/-    0.77      10.0 +/-    0.77  0.080 / 0.230
G11     298.1          25.2                7.6 +/-    1.22      14.7 +/-    1.22  0.050 / 0.040
G14     316.8          71.1                7.2 +/-    0.44       7.6 +/-    0.44  0.040 / 0.040
G18     107.4          23.3               10.4 +/-    1.15      21.2 +/-    1.15  0.230 / 0.280
G22     303.4          14.3                7.7 +/-    2.00      19.5 +/-    2.00  0.200 / 0.240
G25     95.7           11.1               10.7 +/-    6.15      29.1 +/-    6.15  0.030 / 0.020
G31     176.3          47.3               10.2 +/-    1.27      13.3 +/-    1.27  0.030 / 0.020
G32     16.1           63.7                6.3 +/-    0.40       6.9 +/-    0.40  0.060 / 0.040