PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/02/17-00:13:10
G01     87.4           32.1                6.3 +/-    1.10      10.6 +/-    1.10  0.040 / 0.050
G07     127.9          39.5                7.6 +/-    0.64      11.2 +/-    0.64  0.040 / 0.040
G11     64.3           38.0                5.8 +/-    1.48       8.8 +/-    1.48  0.090 / 0.090
G13     291.5          37.3                1.5 +/-    1.78       2.2 +/-    1.78  0.080 / 0.100
G15     313.7          11.0               -3.1 +/-   17.73      -8.5 +/-   17.73  0.040 / 0.050
G17     215.1          58.2                8.6 +/-    0.66       9.9 +/-    0.66  0.040 / 0.060
G18     58.0           21.4                5.6 +/-    2.56      11.9 +/-    2.56  0.150 / 0.120
G19     215.2          28.4                8.9 +/-    1.40      16.1 +/-    1.40  0.150 / 0.130
G28     346.3          61.7                5.3 +/-    0.70       6.0 +/-    0.70  0.100 / 0.160
G30     110.9          74.8                7.3 +/-    1.04       7.5 +/-    1.04  0.100 / 0.220