PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/10-22:57:50
G03     238.9          68.1                7.9 +/-    0.60       8.5 +/-    0.60  0.050 / 0.040
G09     304.4          20.7                4.6 +/-    2.67      10.0 +/-    2.67  0.040 / 0.040
G14     100.1          13.6                7.6 +/-    2.61      19.6 +/-    2.61  0.150 / 0.330
G16     127.4          58.8                7.5 +/-    0.49       8.6 +/-    0.49  0.120 / 0.380
G22     196.2          55.4                7.8 +/-    0.54       9.2 +/-    0.54  0.030 / 0.030
G23     317.8          47.4                7.2 +/-    1.20       9.4 +/-    1.20  0.030 / 0.030
G26     71.3           53.0                4.9 +/-    0.57       6.0 +/-    0.57  0.170 / 0.160
G31     51.5           22.4                5.6 +/-    3.66      11.6 +/-    3.66  0.240 / 0.210