PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/07-10:43:10
G08     315.4          16.0                2.9 +/-    2.20       7.1 +/-    2.20  0.050 / 0.040
G10     318.0          57.6                5.3 +/-    1.16       6.2 +/-    1.16  0.040 / 0.040
G14     213.7          23.7                7.1 +/-    1.92      14.2 +/-    1.92  0.210 / 0.290
G15     45.7           16.7                2.5 +/-    2.77       5.9 +/-    2.77  0.110 / 0.240
G20     21.1           63.1                5.7 +/-    0.92       6.3 +/-    0.92  0.030 / 0.030
G21     125.0          60.9                8.1 +/-    0.45       9.2 +/-    0.45  0.030 / 0.030
G24     81.6           29.0                6.2 +/-    1.64      11.1 +/-    1.64  0.070 / 0.080
G27     288.5          36.7                6.9 +/-    1.16      10.7 +/-    1.16  0.050 / 0.100
G32     217.0          40.0                7.5 +/-    1.31      10.9 +/-    1.31  0.080 / 0.120