PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/08-19:27:40
G07     313.8          51.2               11.8 +/-    0.84      14.6 +/-    0.84  0.050 / 0.050
G08     123.2          42.3               15.1 +/-    1.17      21.1 +/-    1.17  0.040 / 0.040
G09     297.9          79.8               14.1 +/-    0.43      14.3 +/-    0.43  0.030 / 0.030
G16     42.1           27.3                8.5 +/-    1.88      15.8 +/-    1.88  0.030 / 0.030
G23     146.3          63.1               14.0 +/-    0.68      15.5 +/-    0.68  0.050 / 0.060
G27     79.6           38.0               11.4 +/-    1.20      17.1 +/-    1.20  0.050 / 0.060
G30     287.4          23.5               11.9 +/-    1.85      24.1 +/-    1.85  0.040 / 0.050