PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/02-04:27:40
G05     51.5           10.2                2.6 +/-    3.34       7.2 +/-    3.34  0.040 / 0.060
G10     240.6          18.7               10.0 +/-    2.81      22.6 +/-    2.81  0.040 / 0.080
G13     66.4           34.4                4.1 +/-    0.51       6.5 +/-    0.51  0.160 / 0.300
G15     109.7          55.9                6.4 +/-    0.41       7.5 +/-    0.41  0.120 / 0.240
G16     311.0          12.7                6.4 +/-    2.64      16.8 +/-    2.64  0.120 / 0.390
G20     255.1          42.3                7.2 +/-    0.88      10.0 +/-    0.88  0.100 / 0.280
G21     321.7          52.5                6.5 +/-    0.72       8.0 +/-    0.72  0.050 / 0.100
G26     282.9          18.7                6.0 +/-    1.64      13.5 +/-    1.64  0.050 / 0.110
G29     156.0          60.5                6.2 +/-    0.80       7.1 +/-    0.80  0.040 / 0.040