PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/23-14:58:10
G01     233.1          24.1                8.3 +/-    1.25      16.6 +/-    1.25  0.130 / 0.200
G03     302.4          64.6                7.2 +/-    1.10       7.8 +/-    1.10  0.250 / 0.380
G14     78.1           29.3                6.4 +/-    1.06      11.4 +/-    1.06  0.110 / 0.160
G16     158.4          32.1                9.8 +/-    1.25      16.5 +/-    1.25  0.140 / 0.190
G18     206.7          12.5                7.0 +/-    3.66      18.3 +/-    3.66  0.070 / 0.140
G22     232.9          76.0                8.8 +/-    0.32       9.0 +/-    0.32  0.090 / 0.140
G23     299.7          30.1                7.5 +/-    1.45      13.0 +/-    1.45  0.030 / 0.030
G26     120.9          50.5                9.1 +/-    0.64      11.4 +/-    0.64  0.040 / 0.040
G31     41.9           42.6                5.7 +/-    1.32       7.9 +/-    1.32  0.040 / 0.030
G32     90.0           15.8                8.5 +/-    2.66      20.8 +/-    2.66  0.030 / 0.030