PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/22-09:57:40
G01     65.5           31.4                3.8 +/-    1.22       6.4 +/-    1.22  0.080 / 0.120
G07     138.7          26.5                5.8 +/-    0.97      11.0 +/-    0.97  0.080 / 0.100
G11     51.9           30.4                3.6 +/-    0.71       6.2 +/-    0.71  0.030 / 0.030
G13     268.9          38.1                4.9 +/-    3.33       7.3 +/-    3.33  0.040 / 0.030
G15     299.9          15.6                2.7 +/-    1.12       6.5 +/-    1.12  0.090 / 0.090
G17     236.5          69.9                6.8 +/-    0.58       7.2 +/-    0.58  0.150 / 0.110
G18     45.9           16.3                4.1 +/-    2.23       9.9 +/-    2.23  0.100 / 0.250
G19     225.8          47.0                7.1 +/-    2.24       9.3 +/-    2.24  0.080 / 0.220
G28     10.8           60.9                3.9 +/-    1.50       4.4 +/-    1.50  0.030 / 0.030
G30     139.2          60.7                6.7 +/-    0.20       7.6 +/-    0.20  0.030 / 0.040