PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/25-10:28:00
G08     291.7          23.5                7.5 +/-    0.66      15.3 +/-    0.66  0.050 / 0.090
G10     11.3           62.8                4.1 +/-    0.92       4.6 +/-    0.92  0.040 / 0.080
G14     230.2          48.0                9.5 +/-    2.03      12.2 +/-    2.03  0.040 / 0.030
G18     317.6          12.8                4.9 +/-    3.22      12.8 +/-    3.22  0.030 / 0.030
G20     66.7           51.6                5.9 +/-    0.91       7.3 +/-    0.91  0.030 / 0.030
G21     146.5          36.8                5.8 +/-    0.84       8.9 +/-    0.84  0.030 / 0.020
G24     54.1           24.0                4.2 +/-    2.20       8.4 +/-    2.20  0.090 / 0.110
G27     255.8          31.6                8.8 +/-    2.43      14.9 +/-    2.43  0.080 / 0.110
G32     243.3          63.5                8.4 +/-    0.52       9.3 +/-    0.52  0.120 / 0.090