PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/15-01:57:40
G01     298.0          38.2                7.4 +/-    1.90      11.2 +/-    1.90  0.090 / 0.090
G03     309.5          11.4               -6.8 +/-   29.14     -18.5 +/-   29.14  0.070 / 0.080
G10     114.9          32.8                8.6 +/-    1.11      14.3 +/-    1.11  0.040 / 0.040
G11     270.3          27.3                7.3 +/-    1.22      13.5 +/-    1.22  0.050 / 0.040
G14     13.4           62.6                8.3 +/-    0.82       9.2 +/-    0.82  0.090 / 0.090
G18     260.3          49.6                8.2 +/-    3.91      10.5 +/-    3.91  0.060 / 0.090
G22     312.5          32.8                6.5 +/-    1.84      10.7 +/-    1.84  0.050 / 0.090
G25     70.8           17.7                6.8 +/-    2.18      15.9 +/-    2.18  0.050 / 0.080
G31     148.5          74.9                9.1 +/-    0.68       9.4 +/-    0.68  0.140 / 0.140
G32     46.5           45.0                6.6 +/-    0.61       8.9 +/-    0.61  0.070 / 0.130