PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/08-12:43:00
G03     231.0          69.3                4.7 +/-    0.68       5.0 +/-    0.68  0.070 / 0.050
G07     247.7          11.4                2.5 +/-    2.12       6.9 +/-    2.12  0.060 / 0.060
G09     301.7          15.6                2.3 +/-    2.10       5.6 +/-    2.10  0.050 / 0.050
G14     98.1           15.1                5.6 +/-    1.45      13.8 +/-    1.45  0.040 / 0.050
G16     134.8          56.2                7.8 +/-    0.95       9.2 +/-    0.95  0.120 / 0.430
G22     192.2          54.9                6.4 +/-    1.89       7.6 +/-    1.89  0.070 / 0.380
G23     318.4          48.4                3.0 +/-    1.19       3.8 +/-    1.19  0.110 / 0.300
G26     74.9           53.7                5.3 +/-    0.94       6.4 +/-    0.94  0.090 / 0.310
G31     51.4           21.0                3.5 +/-    1.38       7.5 +/-    1.38  0.030 / 0.040