PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/11-11:12:50
G01     51.5           26.1                6.5 +/-    1.30      12.3 +/-    1.30  0.040 / 0.050
G06     177.1          22.4                8.5 +/-    1.10      17.6 +/-    1.10  0.040 / 0.070
G07     144.6          13.6                6.5 +/-    2.80      16.7 +/-    2.80  0.040 / 0.040
G11     45.6           19.3                2.8 +/-    1.48       6.4 +/-    1.48  0.030 / 0.030
G13     252.4          32.9                5.7 +/-    2.12       9.4 +/-    2.12  0.130 / 0.250
G15     287.5          15.7                2.7 +/-    1.85       6.6 +/-    1.85  0.130 / 0.300
G17     283.5          78.1                6.8 +/-    0.92       7.0 +/-    0.92  0.050 / 0.120
G19     241.6          59.3                7.4 +/-    0.78       8.5 +/-    0.78  0.070 / 0.140
G28     36.5           58.0                6.1 +/-    0.64       7.1 +/-    0.64  0.040 / 0.060
G30     148.7          46.1               10.0 +/-    1.72      13.2 +/-    1.72  0.040 / 0.060