PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/13-06:28:00
G08     310.2          18.7                4.6 +/-    1.07      10.5 +/-    1.07  0.080 / 0.080
G10     334.0          60.4                4.3 +/-    0.51       4.8 +/-    0.51  0.080 / 0.080
G14     217.5          31.1                6.1 +/-    2.97      10.4 +/-    2.97  0.040 / 0.040
G20     37.5           60.3                4.7 +/-    0.46       5.3 +/-    0.46  0.050 / 0.050
G21     134.2          56.4                7.4 +/-    0.63       8.7 +/-    0.63  0.040 / 0.020
G24     73.6           29.7                6.3 +/-    0.80      11.1 +/-    0.80  0.040 / 0.020
G27     276.8          37.3                6.3 +/-    2.01       9.5 +/-    2.01  0.130 / 0.220
G32     222.7          48.1                5.7 +/-    2.20       7.4 +/-    2.20  0.190 / 0.190