PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/20-15:12:50
G01     260.4          38.7                8.7 +/-    2.94      12.9 +/-    2.94  0.040 / 0.060
G03     316.8          41.1                6.8 +/-    0.85       9.7 +/-    0.85  0.050 / 0.070
G10     134.0          10.8               10.0 +/-    3.06      27.4 +/-    3.06  0.120 / 0.210
G11     246.1          16.6                8.4 +/-    1.09      20.0 +/-    1.09  0.100 / 0.160
G14     49.9           47.3                6.3 +/-    1.03       8.2 +/-    1.03  0.030 / 0.030
G22     310.7          62.5                7.7 +/-    0.60       8.6 +/-    0.60  0.030 / 0.030
G25     46.2           14.4                4.1 +/-    4.43      10.3 +/-    4.43  0.050 / 0.040
G26     141.1          32.2               13.2 +/-    1.36      22.1 +/-    1.36  0.030 / 0.040
G31     44.3           64.6                6.6 +/-    0.39       7.3 +/-    0.39  0.060 / 0.090
G32     71.6           26.5                5.3 +/-    0.96      10.0 +/-    0.96  0.060 / 0.080