PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/29-12:42:50
G01     40.2           15.3                3.2 +/-    2.04       7.8 +/-    2.04  0.160 / 0.210
G06     173.5          39.4                5.6 +/-    0.94       8.2 +/-    0.94  0.120 / 0.180
G13     236.4          22.7                6.9 +/-    2.39      14.2 +/-    2.39  0.040 / 0.020
G15     271.9          12.0                6.8 +/-    2.18      18.0 +/-    2.18  0.030 / 0.030
G17     352.4          72.5                4.5 +/-    0.30       4.7 +/-    0.30  0.040 / 0.040
G19     279.6          70.6                4.3 +/-    1.07       4.6 +/-    1.07  0.040 / 0.030
G24     316.7          18.0                4.0 +/-    3.14       9.2 +/-    3.14  0.070 / 0.070
G28     63.9           51.9                4.0 +/-    1.17       4.9 +/-    1.17  0.060 / 0.080
G30     154.8          28.5                5.9 +/-    1.52      10.7 +/-    1.52  0.200 / 0.390