PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/22-00:27:50
G01     295.7          38.8                9.2 +/-    1.71      13.7 +/-    1.71  0.060 / 0.090
G03     310.1          12.3               10.0 +/-    2.23      26.4 +/-    2.23  0.060 / 0.120
G10     116.3          32.7                9.9 +/-    0.68      16.4 +/-    0.68  0.060 / 0.100
G11     268.6          27.7                7.8 +/-    1.01      14.4 +/-    1.01  0.050 / 0.100
G14     19.9           60.4                7.8 +/-    0.64       8.8 +/-    0.64  0.070 / 0.100
G22     312.7          33.9                8.2 +/-    1.79      13.3 +/-    1.79  0.070 / 0.090
G25     69.3           18.2                6.8 +/-    0.50      15.7 +/-    0.50  0.040 / 0.050
G31     163.1          73.8                9.5 +/-    0.81       9.8 +/-    0.81  0.040 / 0.050
G32     44.7           47.1                6.7 +/-    0.93       8.7 +/-    0.93  0.030 / 0.030