PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/19-15:12:40
G02     19.9           64.4                4.8 +/-    0.57       5.3 +/-    0.57  0.050 / 0.050
G05     155.4          51.5                9.5 +/-    0.71      11.8 +/-    0.71  0.060 / 0.040
G06     48.5           22.5                4.9 +/-    0.61      10.2 +/-    0.61  0.390 / 0.560
G12     219.2          77.7                6.2 +/-    0.48       6.3 +/-    0.48  0.290 / 0.510
G19     92.2           13.8                5.8 +/-    1.78      14.8 +/-    1.78  0.030 / 0.030
G24     216.0          9.9                 5.9 +/-   25.11      16.6 +/-   25.11  0.040 / 0.030
G25     308.8          45.0                5.3 +/-    1.43       7.1 +/-    1.43  0.090 / 0.160
G29     299.5          20.3                8.1 +/-    2.70      17.6 +/-    2.70  0.080 / 0.180