PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/15-15:28:10
G01     45.3           21.4                5.8 +/-    2.62      12.3 +/-    2.62  0.050 / 0.050
G06     176.0          30.1               10.1 +/-    0.88      17.7 +/-    0.88  0.040 / 0.050
G11     43.6           11.0                6.6 +/-    3.48      18.0 +/-    3.48  0.270 / 0.330
G13     243.9          28.0               10.6 +/-    1.24      19.4 +/-    1.24  0.270 / 0.560
G15     278.4          14.6                8.3 +/-    1.37      20.7 +/-    1.37  0.380 / 0.450
G17     324.6          77.1                8.9 +/-    0.35       9.1 +/-    0.35  0.210 / 0.270
G19     256.7          65.4               10.3 +/-    0.68      11.2 +/-    0.68  0.030 / 0.030
G24     318.5          11.8               -5.4 +/-   29.66     -14.4 +/-   29.66  0.040 / 0.030
G28     52.4           54.7                9.6 +/-    0.73      11.5 +/-    0.73  0.050 / 0.040
G30     151.6          34.8                9.8 +/-    1.04      15.6 +/-    1.04  0.040 / 0.040