PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/27-08:57:30
G10     300.2          53.2                6.4 +/-    1.90       7.8 +/-    1.90  0.040 / 0.030
G14     210.1          13.5                2.1 +/-    2.79       5.4 +/-    2.79  0.030 / 0.040
G15     45.8           26.0                4.3 +/-    2.90       8.2 +/-    2.90  0.110 / 0.560
G20     356.2          65.2                6.4 +/-    0.77       7.0 +/-    0.77  0.220 / 0.450
G21     104.3          70.6                7.9 +/-    0.41       8.4 +/-    0.41  0.050 / 0.060
G24     94.6           26.8                5.5 +/-    1.45      10.3 +/-    1.45  0.080 / 0.030
G27     301.0          33.6                4.3 +/-    2.52       7.0 +/-    2.52  0.140 / 0.180
G32     211.7          28.5                8.0 +/-    2.82      14.5 +/-    2.82  0.110 / 0.160