PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/27-05:27:50
G01     64.7           31.0                4.1 +/-    1.10       7.0 +/-    1.10  0.030 / 0.040
G07     138.8          28.1                6.5 +/-    1.04      11.9 +/-    1.04  0.030 / 0.040
G11     52.9           32.2                3.6 +/-    1.08       6.0 +/-    1.08  0.080 / 0.190
G13     268.6          38.2                8.4 +/-    1.22      12.6 +/-    1.22  0.070 / 0.190
G15     297.1          16.9                3.9 +/-    1.26       9.1 +/-    1.26  0.060 / 0.120
G17     238.2          72.6                8.0 +/-    0.42       8.4 +/-    0.42  0.070 / 0.110
G19     225.7          47.5                8.3 +/-    1.63      10.8 +/-    1.63  0.040 / 0.060
G28     8.2            61.1                3.7 +/-    0.66       4.2 +/-    0.66  0.040 / 0.070
G30     139.7          62.8                9.0 +/-    1.03      10.0 +/-    1.03  0.050 / 0.060