PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/26-14:13:10
G02     59.1           32.4                6.0 +/-    1.98      10.0 +/-    1.98  0.040 / 0.030
G05     62.9           65.7                5.9 +/-    0.72       6.4 +/-    0.72  0.030 / 0.030
G12     182.3          31.8                7.3 +/-    1.49      12.3 +/-    1.49  0.070 / 0.100
G13     127.1          14.4               10.8 +/-    2.29      27.2 +/-    2.29  0.080 / 0.080
G15     162.8          12.8                9.1 +/-    6.21      24.0 +/-    6.21  0.040 / 0.040
G21     271.0          16.4                6.6 +/-    1.20      15.7 +/-    1.20  0.030 / 0.050
G25     238.6          52.6                5.2 +/-    4.36       6.3 +/-    4.36  0.150 / 0.390
G29     327.5          52.8                5.1 +/-    0.42       6.2 +/-    0.42  0.140 / 0.280