PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/22-03:57:30
G08     305.9          20.1                5.3 +/-    0.97      11.6 +/-    0.97  0.080 / 0.100
G10     347.1          61.8                6.3 +/-    0.48       7.1 +/-    0.48  0.060 / 0.080
G14     221.1          36.3                8.9 +/-    1.45      13.9 +/-    1.45  0.030 / 0.030
G20     48.2           57.8                7.0 +/-    0.79       8.1 +/-    0.79  0.030 / 0.030
G21     139.8          51.5                7.8 +/-    0.95       9.7 +/-    0.95  0.040 / 0.040
G24     67.3           29.2                5.1 +/-    1.05       9.0 +/-    1.05  0.040 / 0.060
G27     268.3          36.3                9.0 +/-    1.69      14.0 +/-    1.69  0.090 / 0.120
G32     228.4          55.8                9.1 +/-    2.74      10.7 +/-    2.74  0.070 / 0.130