PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/10-03:57:50
G10     241.5          19.7               12.9 +/-    3.88      28.7 +/-    3.88  0.100 / 0.230
G13     64.9           34.0                7.2 +/-    0.45      11.6 +/-    0.45  0.090 / 0.140
G15     107.3          56.3                9.1 +/-    0.39      10.7 +/-    0.39  0.040 / 0.070
G20     256.4          43.2                9.9 +/-    1.03      13.7 +/-    1.03  0.040 / 0.050
G21     322.7          53.1                9.6 +/-    0.63      11.7 +/-    0.63  0.060 / 0.100
G26     281.4          18.5                8.2 +/-    1.72      18.7 +/-    1.72  0.050 / 0.130
G29     156.9          59.5               10.2 +/-    0.44      11.7 +/-    0.44  0.030 / 0.040