PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/29-07:12:30
G10     249.7          27.0                5.6 +/-    2.20      10.4 +/-    2.20  0.050 / 0.040
G13     54.2           29.8                5.3 +/-    2.55       9.4 +/-    2.55  0.050 / 0.040
G15     86.5           57.1                5.9 +/-    0.90       6.9 +/-    0.90  0.080 / 0.300
G16     301.7          13.7                1.9 +/-    0.61       5.0 +/-    0.61  0.100 / 0.340
G20     268.8          50.4                6.6 +/-    2.67       8.2 +/-    2.67  0.080 / 0.150
G21     337.1          61.3                4.5 +/-    0.51       5.0 +/-    0.51  0.090 / 0.140
G26     272.9          15.5                4.6 +/-    2.02      11.2 +/-    2.02  0.080 / 0.130
G29     160.6          45.7                6.9 +/-    0.84       9.2 +/-    0.84  0.120 / 0.100