PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/08-14:28:00
G01     83.6           32.7                9.1 +/-    0.69      15.1 +/-    0.69  0.040 / 0.070
G07     130.1          37.6               10.3 +/-    0.76      15.6 +/-    0.76  0.040 / 0.070
G11     61.5           34.7                6.8 +/-    2.18      10.8 +/-    2.18  0.080 / 0.110
G13     290.5          36.1                9.3 +/-    1.03      14.5 +/-    1.03  0.080 / 0.110
G15     314.0          10.5               -3.4 +/-   24.81      -9.3 +/-   24.81  0.030 / 0.040
G17     218.9          61.5               11.4 +/-    0.63      12.8 +/-    0.63  0.030 / 0.030
G19     217.1          33.8              -30.3 +/-   56.68     -49.2 +/-   56.68  0.040 / 0.050
G28     359.6          61.1                6.2 +/-    3.29       7.0 +/-    3.29  0.040 / 0.040
G30     114.7          74.2               10.2 +/-    1.03      10.6 +/-    1.03  0.040 / 0.130