PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/30-11:42:30
G02     205.1          38.1                5.6 +/-    1.17       8.5 +/-    1.17  0.080 / 0.070
G06     146.1          73.9                5.4 +/-    0.61       5.6 +/-    0.61  0.060 / 0.110
G12     309.7          20.0                4.1 +/-    1.28       9.1 +/-    1.28  0.030 / 0.030
G17     38.5           47.1                3.6 +/-    0.49       4.7 +/-    0.49  0.030 / 0.030
G19     13.9           61.4                4.0 +/-    0.58       4.4 +/-    0.58  0.120 / 0.270
G24     293.8          38.9                4.1 +/-    0.91       6.1 +/-    0.91  0.100 / 0.240
G28     103.0          34.7                4.1 +/-    0.87       6.5 +/-    0.87  0.040 / 0.040