PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/11-19:28:00
G03     243.4          70.1               11.1 +/-    0.55      11.7 +/-    0.55  0.050 / 0.040
G09     300.6          14.1                8.5 +/-    2.82      21.6 +/-    2.82  0.050 / 0.040
G14     95.9           18.2               10.3 +/-    1.93      23.8 +/-    1.93  0.100 / 0.230
G16     135.6          55.5               11.7 +/-    0.52      13.8 +/-    0.52  0.130 / 0.250
G22     196.7          59.3               11.5 +/-    0.55      13.1 +/-    0.55  0.040 / 0.040
G23     316.7          46.7               11.1 +/-    0.82      14.7 +/-    0.82  0.040 / 0.040
G26     75.8           53.2               10.4 +/-    0.93      12.7 +/-    0.93  0.130 / 0.260
G31     50.2           22.6                8.4 +/-    2.20      17.3 +/-    2.20  0.110 / 0.210