PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/02/27-17:42:50
G03     222.0          65.2               10.9 +/-    1.14      11.9 +/-    1.14  0.120 / 0.270
G07     251.5          13.5               12.1 +/-    3.20      31.3 +/-    3.20  0.090 / 0.360
G09     305.5          20.9                9.1 +/-    1.77      19.5 +/-    1.77  0.170 / 0.220
G14     103.0          10.9               10.4 +/-    2.03      28.4 +/-    2.03  0.150 / 0.230
G16     128.6          60.6               11.5 +/-    0.84      12.9 +/-    0.84  0.270 / 0.370
G22     190.2          49.3               12.0 +/-    0.90      15.3 +/-    0.90  0.150 / 0.420
G23     321.3          51.2               10.2 +/-    0.74      12.7 +/-    0.74  0.040 / 0.040
G26     68.9           53.4               10.4 +/-    0.65      12.6 +/-    0.65  0.040 / 0.040
G31     53.6           19.0                7.4 +/-    1.99      16.6 +/-    1.99  0.050 / 0.060