PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/21-05:42:30
G01     69.8           31.8                5.6 +/-    1.00       9.5 +/-    1.00  0.030 / 0.030
G07     136.3          32.1                8.1 +/-    0.55      13.7 +/-    0.55  0.030 / 0.030
G11     56.0           35.1                6.7 +/-    1.33      10.6 +/-    1.33  0.110 / 0.280
G13     274.4          38.9                7.3 +/-    1.64      10.8 +/-    1.64  0.130 / 0.290
G15     301.4          16.1                3.7 +/-    2.52       9.0 +/-    2.52  0.040 / 0.050
G17     229.3          68.4                7.9 +/-    0.78       8.4 +/-    0.78  0.040 / 0.050
G19     222.1          43.3                8.3 +/-    2.10      11.5 +/-    2.10  0.030 / 0.030
G28     359.8          61.4                7.0 +/-    0.66       7.8 +/-    0.66  0.030 / 0.030
G30     134.6          67.1                8.8 +/-    0.71       9.4 +/-    0.71  0.090 / 0.120