PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/07-16:57:40
G03     233.7          69.0               12.0 +/-    0.34      12.7 +/-    0.34  0.130 / 0.470
G09     302.3          16.7               10.1 +/-    1.84      24.2 +/-    1.84  0.140 / 0.470
G14     98.7           14.4               10.4 +/-    1.98      26.3 +/-    1.98  0.040 / 0.040
G16     138.6          55.9               11.6 +/-    0.36      13.7 +/-    0.36  0.040 / 0.040
G22     192.5          54.8               12.5 +/-    0.68      14.9 +/-    0.68  0.220 / 0.260
G23     317.3          46.9               10.4 +/-    1.26      13.7 +/-    1.26  0.190 / 0.240
G26     77.7           55.4               10.7 +/-    0.98      12.6 +/-    0.98  0.040 / 0.040
G31     50.9           22.8                8.9 +/-    3.33      18.2 +/-    3.33  0.040 / 0.040