PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/14-12:12:40
G03     239.3          70.7                4.5 +/-    0.86       4.7 +/-    0.86  0.040 / 0.050
G09     300.3          13.8                3.9 +/-    3.31      10.0 +/-    3.31  0.040 / 0.050
G14     96.1           16.7                4.0 +/-    2.25       9.5 +/-    2.25  0.040 / 0.030
G16     137.7          54.2                5.3 +/-    0.50       6.4 +/-    0.50  0.030 / 0.040
G22     194.4          57.7                4.0 +/-    0.65       4.6 +/-    0.65  0.140 / 0.300
G23     316.7          46.7                4.1 +/-    0.82       5.4 +/-    0.82  0.140 / 0.200
G26     78.9           54.3                3.1 +/-    0.63       3.7 +/-    0.63  0.170 / 0.240
G31     50.3           22.7                2.7 +/-    3.03       5.7 +/-    3.03  0.120 / 0.300