PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/25-01:57:40
G10     269.8          40.9               11.0 +/-    0.89      15.7 +/-    0.89  0.140 / 0.220
G13     40.6           15.7                6.5 +/-    3.00      15.8 +/-    3.00  0.140 / 0.260
G15     56.3           46.2                8.1 +/-    0.94      10.8 +/-    0.94  0.080 / 0.060
G16     278.4          11.6               11.0 +/-    1.18      29.7 +/-    1.18  0.080 / 0.060
G20     301.9          61.0                9.6 +/-    0.71      10.9 +/-    0.71  0.040 / 0.040
G21     8.4            72.8               10.4 +/-    0.56      10.8 +/-    0.56  0.040 / 0.040
G24     119.0          15.5                8.7 +/-    1.14      21.5 +/-    1.14  0.230 / 0.400
G27     318.2          19.7                6.6 +/-    2.63      14.6 +/-    2.63  0.270 / 0.440
G29     166.7          27.6               10.9 +/-    0.97      20.0 +/-    0.97  0.170 / 0.370