PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/28-10:27:50
G01     261.9          39.2                9.1 +/-    1.99      13.4 +/-    1.99  0.050 / 0.060
G03     316.6          36.6                6.7 +/-    0.71      10.3 +/-    0.71  0.040 / 0.060
G10     133.4          11.5                5.4 +/-    2.52      14.7 +/-    2.52  0.070 / 0.080
G11     245.3          16.9                6.7 +/-    1.41      15.8 +/-    1.41  0.060 / 0.110
G14     46.5           49.5                5.6 +/-    0.96       7.1 +/-    0.96  0.040 / 0.040
G22     311.4          61.9                7.7 +/-    0.63       8.6 +/-    0.63  0.030 / 0.040
G25     46.9           14.7                1.8 +/-    5.06       4.4 +/-    5.06  0.110 / 0.200
G31     45.2           64.8                5.7 +/-    0.57       6.2 +/-    0.57  0.120 / 0.290
G32     70.9           26.7                2.5 +/-    1.72       4.7 +/-    1.72  0.190 / 0.210