PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/14-17:27:50
G08     287.4          23.9                8.6 +/-    1.45      17.3 +/-    1.45  0.050 / 0.130
G10     17.0           62.9                6.1 +/-    0.46       6.7 +/-    0.46  0.060 / 0.120
G14     233.2          50.3               12.9 +/-    1.44      16.2 +/-    1.44  0.030 / 0.030
G18     317.4          15.8                5.0 +/-    2.81      12.2 +/-    2.81  0.030 / 0.030
G20     70.6           50.1                6.8 +/-    0.43       8.5 +/-    0.43  0.120 / 0.170
G21     147.7          33.6                8.3 +/-    0.80      13.5 +/-    0.80  0.100 / 0.180
G24     49.8           20.6                4.4 +/-    1.59       9.6 +/-    1.59  0.070 / 0.060
G27     253.4          30.0                8.8 +/-    1.54      15.5 +/-    1.54  0.070 / 0.070
G32     252.9          69.8                8.3 +/-    0.61       8.8 +/-    0.61  0.120 / 0.150