PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/01-05:12:40
G01     63.9           30.8                4.3 +/-    1.11       7.4 +/-    1.11  0.030 / 0.030
G07     139.2          27.6                7.8 +/-    0.87      14.4 +/-    0.87  0.030 / 0.040
G11     52.5           31.8                4.2 +/-    2.37       7.1 +/-    2.37  0.140 / 0.230
G13     267.8          38.1                7.1 +/-    2.53      10.7 +/-    2.53  0.210 / 0.260
G15     296.4          17.0                6.1 +/-    0.91      14.4 +/-    0.91  0.040 / 0.050
G17     239.9          73.2                7.4 +/-    0.52       7.7 +/-    0.52  0.040 / 0.050
G19     226.3          48.1                6.9 +/-    2.20       8.9 +/-    2.20  0.030 / 0.030
G28     9.2            61.1                5.3 +/-    1.68       6.0 +/-    1.68  0.040 / 0.020
G30     140.3          62.2                6.9 +/-    0.52       7.7 +/-    0.52  0.120 / 0.160