PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/16-12:27:40
G02     52.6           37.4                2.9 +/-    0.63       4.4 +/-    0.63  0.030 / 0.040
G05     84.5           70.3                4.7 +/-    0.30       5.0 +/-    0.30  0.020 / 0.030
G12     182.8          40.5                5.5 +/-    1.45       8.0 +/-    1.45  0.140 / 0.450
G21     264.2          11.3                1.8 +/-    8.37       4.8 +/-    8.37  0.130 / 0.580
G25     253.9          57.2                6.1 +/-    0.82       7.1 +/-    0.82  0.050 / 0.070
G29     321.6          44.7                4.5 +/-    0.99       6.1 +/-    0.99  0.040 / 0.060