PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/17-12:42:30
G02     59.4           31.7                3.5 +/-    0.93       5.9 +/-    0.93  0.030 / 0.030
G05     62.7           65.2                4.0 +/-    0.42       4.4 +/-    0.42  0.030 / 0.040
G12     181.5          31.3                4.5 +/-    2.40       7.7 +/-    2.40  0.050 / 0.090
G13     127.4          14.1                4.3 +/-    4.21      11.0 +/-    4.21  0.050 / 0.100
G15     162.3          12.9                4.7 +/-    1.84      12.3 +/-    1.84  0.050 / 0.090
G21     270.9          16.6                8.4 +/-    3.69      20.0 +/-    3.69  0.050 / 0.090
G25     238.6          52.9                4.7 +/-    0.98       5.8 +/-    0.98  0.180 / 0.510
G29     327.2          52.4                2.7 +/-    0.88       3.3 +/-    0.88  0.180 / 0.400