PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/10-01:12:30
G02     213.5          59.2               12.9 +/-    0.71      14.7 +/-    0.71  0.090 / 0.090
G06     66.1           76.8               11.4 +/-    0.36      11.7 +/-    0.36  0.100 / 0.100
G12     317.6          33.3                8.6 +/-    1.50      14.0 +/-    1.50  0.080 / 0.070
G17     52.6           37.5               11.0 +/-    1.62      16.7 +/-    1.62  0.070 / 0.080
G19     35.7           51.3               10.8 +/-    2.07      13.4 +/-    2.07  0.040 / 0.030
G24     269.2          42.0               11.5 +/-    1.64      16.2 +/-    1.64  0.030 / 0.020
G28     121.1          15.1               14.0 +/-    1.72      34.8 +/-    1.72  0.140 / 0.280