PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/27-18:57:40
G08     306.3          20.3               10.0 +/-    2.00      21.8 +/-    2.00  0.080 / 0.080
G10     337.2          60.7                9.0 +/-    0.59      10.2 +/-    0.59  0.070 / 0.060
G14     220.2          34.6               13.6 +/-    2.37      21.7 +/-    2.37  0.040 / 0.060
G18     46.4           56.9               10.2 +/-    0.85      11.9 +/-    0.85  0.030 / 0.040
G21     137.0          48.9               12.1 +/-    0.64      15.5 +/-    0.64  0.060 / 0.070
G24     71.4           30.3               11.0 +/-    1.17      19.1 +/-    1.17  0.050 / 0.070
G27     268.7          36.8               11.1 +/-    2.00      17.0 +/-    2.00  0.100 / 0.080
G32     226.7          54.0               11.7 +/-    2.81      14.0 +/-    2.81  0.120 / 0.070