PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/23-04:27:40
G01     105.3          24.7                9.1 +/-    1.69      17.8 +/-    1.69  0.030 / 0.020
G07     105.5          58.7                7.8 +/-    1.04       9.0 +/-    1.04  0.030 / 0.020
G08     41.8           20.4                3.2 +/-    2.69       7.0 +/-    2.69  0.180 / 0.280
G09     172.5          11.6                6.6 +/-    1.80      17.7 +/-    1.80  0.190 / 0.160
G11     94.1           45.2                7.7 +/-    0.78      10.4 +/-    0.78  0.050 / 0.060
G13     309.4          29.6                4.1 +/-    1.64       7.2 +/-    1.64  0.060 / 0.070
G17     204.3          37.3                9.3 +/-    1.00      14.2 +/-    1.00  0.060 / 0.070
G19     207.6          14.5                4.7 +/-    5.23      11.7 +/-    5.23  0.080 / 0.070
G28     300.9          56.7                4.7 +/-    1.47       5.5 +/-    1.47  0.040 / 0.060
G30     2.7            76.4                5.8 +/-    0.32       6.0 +/-    0.32  0.040 / 0.070