PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/01-16:58:00
G01     223.5          14.8                9.4 +/-    1.70      23.5 +/-    1.70  0.100 / 0.350
G03     271.7          71.2                8.2 +/-    0.84       8.6 +/-    0.84  0.100 / 0.290
G14     89.6           21.3                6.8 +/-    2.12      14.4 +/-    2.12  0.030 / 0.040
G16     149.7          45.4               10.4 +/-    0.56      14.0 +/-    0.56  0.040 / 0.040
G22     203.5          66.3                7.8 +/-    1.14       8.4 +/-    1.14  0.040 / 0.050
G23     309.0          38.6                7.9 +/-    1.19      11.7 +/-    1.19  0.030 / 0.050
G26     100.0          56.2                8.8 +/-    0.37      10.3 +/-    0.37  0.050 / 0.100
G31     45.8           32.0                6.6 +/-    0.65      11.2 +/-    0.65  0.070 / 0.090