PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/02/22-17:43:10
G03     245.6          70.6               11.0 +/-    0.50      11.6 +/-    0.50  0.140 / 0.290
G09     300.5          14.6                7.8 +/-    1.28      19.4 +/-    1.28  0.120 / 0.290
G14     96.1           16.5               11.4 +/-    2.91      27.4 +/-    2.91  0.040 / 0.030
G16     141.4          53.3               10.8 +/-    0.65      13.1 +/-    0.65  0.030 / 0.030
G22     195.8          58.7               11.7 +/-    0.39      13.5 +/-    0.39  0.120 / 0.210
G23     314.7          44.2               10.5 +/-    0.76      14.3 +/-    0.76  0.090 / 0.310
G26     85.0           56.6                9.8 +/-    0.51      11.5 +/-    0.51  0.040 / 0.040
G31     49.2           25.9                7.7 +/-    3.02      14.8 +/-    3.02  0.040 / 0.040