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                3.5 +/-    0.65       6.0 +/-    0.65  0.040 / 0.030
G07     138.8          27.1                6.0 +/-    1.14      11.3 +/-    1.14  0.030 / 0.040
G11     52.2           30.9                4.3 +/-    1.28       7.5 +/-    1.28  0.130 / 0.330
G13     268.8          38.1                5.8 +/-    2.37       8.8 +/-    2.37  0.140 / 0.250
G15     298.9          16.1                2.3 +/-    1.27       5.6 +/-    1.27  0.090 / 0.130
G17     237.1          70.9                6.6 +/-    0.42       6.9 +/-    0.42  0.090 / 0.100
G19     225.8          47.2                6.5 +/-    1.90       8.5 +/-    1.90  0.060 / 0.100
G28     9.9            61.0                3.0 +/-    1.46       3.4 +/-    1.46  0.060 / 0.140
G30     139.4          61.5                6.0 +/-    0.41       6.8 +/-    0.41  0.060 / 0.050