PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/24-23:13:00
G03     222.8          63.4               12.1 +/-    1.00      13.3 +/-    1.00  0.040 / 0.060
G07     252.3          11.5                2.5 +/-   23.71       6.7 +/-   23.71  0.040 / 0.040
G09     306.9          22.6               10.5 +/-    3.22      21.7 +/-    3.22  0.200 / 0.190
G14     105.1          10.0               11.3 +/-    1.50      31.4 +/-    1.50  0.150 / 0.240
G16     120.2          63.3               12.7 +/-    0.36      14.1 +/-    0.36  0.050 / 0.030
G22     191.7          48.9               13.2 +/-    0.94      16.8 +/-    0.94  0.040 / 0.040
G23     324.2          54.0                9.9 +/-    0.51      11.9 +/-    0.51  0.200 / 0.410
G26     61.4           49.3                9.6 +/-    1.00      12.2 +/-    1.00  0.190 / 0.370
G31     55.3           16.0                7.6 +/-    2.36      18.5 +/-    2.36  0.080 / 0.120