PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/25-05:12:50
G01     271.7          42.3                4.9 +/-    3.54       6.9 +/-    3.54  0.040 / 0.050
G03     315.6          28.3                2.6 +/-    1.09       4.8 +/-    1.09  0.050 / 0.050
G10     128.4          16.9                4.9 +/-    1.66      11.7 +/-    1.66  0.090 / 0.070
G11     252.6          20.2                6.6 +/-    4.21      14.4 +/-    4.21  0.060 / 0.070
G14     39.8           51.9                4.5 +/-    1.09       5.5 +/-    1.09  0.050 / 0.060
G18     234.8          40.2                8.8 +/-    1.76      12.8 +/-    1.76  0.050 / 0.070
G22     314.5          49.7                4.2 +/-    0.97       5.3 +/-    0.97  0.080 / 0.110
G25     55.3           17.4                3.4 +/-    2.63       7.9 +/-    2.63  0.060 / 0.090
G31     59.6           73.8                5.1 +/-    0.66       5.3 +/-    0.66  0.110 / 0.130
G32     61.5           34.7                5.2 +/-    1.40       8.3 +/-    1.40  0.110 / 0.150