PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/03-23:27:50
G01     46.7           22.7                9.3 +/-    0.63      19.2 +/-    0.63  0.050 / 0.150
G06     177.1          29.4               16.6 +/-    2.17      29.3 +/-    2.17  0.050 / 0.160
G11     44.3           13.1                7.3 +/-    0.86      19.0 +/-    0.86  0.040 / 0.070
G13     246.4          27.8               14.2 +/-    0.90      26.1 +/-    0.90  0.050 / 0.070
G15     279.0          15.0               11.0 +/-    2.54      27.3 +/-    2.54  0.080 / 0.260
G17     316.6          76.8               12.8 +/-    0.75      13.1 +/-    0.75  0.090 / 0.260
G19     254.7          63.0               13.2 +/-    0.42      14.6 +/-    0.42  0.030 / 0.030
G24     318.7          11.5               -5.9 +/-   35.03     -15.9 +/-   35.03  0.030 / 0.030
G28     59.8           50.7               11.6 +/-    0.85      14.5 +/-    0.85  0.070 / 0.110
G30     151.0          34.4               15.0 +/-    0.99      24.1 +/-    0.99  0.070 / 0.110