PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/14-08:27:50
G01     65.2           31.3                3.1 +/-    0.59       5.4 +/-    0.59  0.040 / 0.040
G06     180.5          9.8               -20.7 +/-   10.76     -57.8 +/-   10.76  0.040 / 0.040
G07     138.8          27.1                5.5 +/-    1.74      10.2 +/-    1.74  0.050 / 0.120
G11     52.2           30.9                3.6 +/-    1.19       6.1 +/-    1.19  0.060 / 0.090
G13     268.8          38.1                7.9 +/-    0.99      11.9 +/-    0.99  0.050 / 0.110
G15     298.9          16.1                3.5 +/-    2.97       8.4 +/-    2.97  0.060 / 0.100
G17     237.1          70.9                6.5 +/-    0.70       6.8 +/-    0.70  0.040 / 0.040
G19     225.8          47.2                6.6 +/-    1.96       8.6 +/-    1.96  0.030 / 0.040
G28     9.9            61.0                2.1 +/-    0.56       2.4 +/-    0.56  0.060 / 0.060
G30     139.4          61.5                7.4 +/-    0.66       8.3 +/-    0.66  0.060 / 0.060