PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/10-17:42:50
G03     231.0          68.8               12.7 +/-    0.76      13.5 +/-    0.76  0.040 / 0.040
G09     302.0          15.8                8.6 +/-    1.61      20.9 +/-    1.61  0.040 / 0.040
G14     97.6           17.4               12.9 +/-    1.40      30.3 +/-    1.40  0.030 / 0.040
G16     129.9          57.8               15.3 +/-    0.57      17.8 +/-    0.57  0.030 / 0.040
G22     192.9          55.8               13.8 +/-    0.61      16.4 +/-    0.61  0.120 / 0.220
G23     319.6          49.6               11.4 +/-    0.50      14.5 +/-    0.50  0.100 / 0.290
G31     51.6           20.0                9.9 +/-    2.76      21.7 +/-    2.76  0.150 / 0.200