PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/25-12:28:10
G02     43.7           46.2                4.6 +/-    0.84       6.1 +/-    0.84  0.030 / 0.030
G05     113.4          70.0                6.4 +/-    0.91       6.7 +/-    0.91  0.030 / 0.040
G12     189.3          53.3                8.2 +/-    0.69       9.9 +/-    0.69  0.030 / 0.040
G25     262.3          60.7                6.7 +/-    1.06       7.5 +/-    1.06  0.030 / 0.030
G29     316.7          38.8                3.9 +/-    1.04       5.7 +/-    1.04  0.020 / 0.020