PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/23-01:57:50
G08     304.3          20.2                4.4 +/-    1.03       9.7 +/-    1.03  0.050 / 0.070
G10     354.0          62.3                6.5 +/-    0.64       7.2 +/-    0.64  0.050 / 0.060
G14     223.1          38.5                7.3 +/-    2.19      10.9 +/-    2.19  0.080 / 0.120
G20     53.0           56.6                8.2 +/-    1.15       9.6 +/-    1.15  0.080 / 0.170
G21     142.2          48.9                8.3 +/-    0.88      10.6 +/-    0.88  0.060 / 0.080
G24     64.3           28.7                5.8 +/-    1.56      10.5 +/-    1.56  0.070 / 0.120
G27     264.0          35.4                9.0 +/-    1.82      14.2 +/-    1.82  0.050 / 0.060
G32     232.1          59.9                6.3 +/-    1.50       7.1 +/-    1.50  0.060 / 0.050