PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/08-11:13:00
G02     58.4           32.1                4.3 +/-    1.82       7.3 +/-    1.82  0.030 / 0.040
G05     64.6           65.4                4.4 +/-    0.31       4.8 +/-    0.31  0.030 / 0.030
G12     182.8          34.4                6.8 +/-    1.72      10.9 +/-    1.72  0.050 / 0.080
G13     128.7          12.9                6.0 +/-    1.69      15.7 +/-    1.69  0.050 / 0.070
G15     162.6          11.9                5.5 +/-    2.37      14.6 +/-    2.37  0.080 / 0.090
G21     269.7          16.0                4.8 +/-    2.16      11.6 +/-    2.16  0.070 / 0.110
G25     240.7          54.0                6.0 +/-    1.18       7.2 +/-    1.18  0.120 / 0.390
G29     326.0          50.7                4.3 +/-    1.27       5.4 +/-    1.27  0.140 / 0.350