PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/23-05:43:10
G01     64.9           31.0                4.8 +/-    0.79       8.3 +/-    0.79  0.030 / 0.030
G07     138.7          28.2                9.2 +/-    1.80      16.8 +/-    1.80  0.030 / 0.030
G11     52.9           32.2                3.8 +/-    1.55       6.4 +/-    1.55  0.180 / 0.260
G13     268.8          38.2                5.0 +/-    2.60       7.5 +/-    2.60  0.120 / 0.220
G15     297.4          16.8                3.7 +/-    3.18       8.8 +/-    3.18  0.060 / 0.060
G17     237.8          72.3                8.5 +/-    0.68       8.8 +/-    0.68  0.050 / 0.050
G19     225.6          47.3                7.5 +/-    2.13       9.8 +/-    2.13  0.030 / 0.030
G28     8.0            61.1                5.7 +/-    1.64       6.4 +/-    1.64  0.020 / 0.030
G30     139.5          62.8                8.3 +/-    0.33       9.3 +/-    0.33  0.070 / 0.140