PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/26-20:28:10
G02     35.3           53.6                8.8 +/-    1.08      10.7 +/-    1.08  0.020 / 0.030
G05     130.6          65.5               10.2 +/-    0.30      11.0 +/-    0.30  0.030 / 0.030
G06     56.7           11.1                7.8 +/-    2.01      21.2 +/-    2.01  0.030 / 0.040
G12     188.7          60.4                9.6 +/-    0.45      10.9 +/-    0.45  0.040 / 0.040
G19     102.4          9.6                10.3 +/-    1.38      28.9 +/-    1.38  0.040 / 0.050
G25     289.4          56.2                5.5 +/-    3.64       6.4 +/-    3.64  0.030 / 0.050
G29     309.6          30.0                8.5 +/-    1.57      14.9 +/-    1.57  0.140 / 0.140