PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/31-14:27:50
G01     260.4          38.7                9.3 +/-    2.71      13.8 +/-    2.71  0.050 / 0.050
G03     316.7          40.4                6.6 +/-    1.00       9.5 +/-    1.00  0.050 / 0.060
G10     134.0          10.7               10.8 +/-    2.73      29.7 +/-    2.73  0.100 / 0.190
G11     245.8          16.5                9.0 +/-    1.27      21.5 +/-    1.27  0.090 / 0.140
G14     49.5           47.6                6.7 +/-    1.07       8.7 +/-    1.07  0.220 / 0.290
G18     227.9          33.7               10.5 +/-    1.38      17.0 +/-    1.38  0.170 / 0.310
G22     310.6          63.2                7.1 +/-    0.80       7.9 +/-    0.80  0.060 / 0.060
G25     46.2           14.4                3.6 +/-    4.96       9.2 +/-    4.96  0.060 / 0.080
G31     44.3           64.4                7.2 +/-    0.48       7.9 +/-    0.48  0.050 / 0.080
G32     71.7           26.4                5.9 +/-    1.77      11.2 +/-    1.77  0.060 / 0.070