PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/24-03:28:10
G01     319.2          18.5                7.4 +/-    1.63      16.9 +/-    1.63  0.040 / 0.040
G08     261.5          13.9               10.2 +/-    1.84      26.1 +/-    1.84  0.040 / 0.040
G10     79.4           52.1                5.7 +/-    0.64       7.0 +/-    0.64  0.080 / 0.090
G11     304.2          22.1                8.1 +/-    1.80      17.0 +/-    1.80  0.070 / 0.090
G14     291.3          70.2                6.0 +/-    0.51       6.3 +/-    0.51  0.140 / 0.350
G18     305.2          40.6                7.4 +/-    2.46      10.7 +/-    2.46  0.140 / 0.400
G31     174.7          42.1                8.7 +/-    0.78      12.2 +/-    0.78  0.030 / 0.020
G32     2.9            68.9                5.2 +/-    0.55       5.5 +/-    0.55  0.030 / 0.030