PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/09-04:12:40
G01     78.7           32.0                5.2 +/-    1.08       8.8 +/-    1.08  0.030 / 0.030
G07     131.2          39.4                8.2 +/-    0.58      12.1 +/-    0.58  0.030 / 0.030
G11     63.5           40.2                5.8 +/-    1.17       8.4 +/-    1.17  0.040 / 0.050
G13     284.3          39.0                1.6 +/-    4.66       2.3 +/-    4.66  0.050 / 0.040
G15     307.4          14.6                0.6 +/-    4.00       1.5 +/-    4.00  0.050 / 0.070
G17     219.2          61.7                9.5 +/-    1.10      10.6 +/-    1.10  0.040 / 0.060
G19     217.1          36.2                7.7 +/-    1.36      11.9 +/-    1.36  0.120 / 0.360
G28     344.0          61.4                5.5 +/-    0.69       6.2 +/-    0.69  0.090 / 0.230
G30     121.0          74.7                8.8 +/-    0.66       9.1 +/-    0.66  0.050 / 0.050