PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/29-09:27:30
G02     202.2          32.1                5.9 +/-    1.25       9.9 +/-    1.25  0.070 / 0.100
G06     160.2          66.5                6.1 +/-    1.51       6.6 +/-    1.51  0.070 / 0.100
G12     306.1          15.6                2.4 +/-    1.78       5.9 +/-    1.78  0.060 / 0.110
G17     32.8           51.6                4.0 +/-    0.39       5.0 +/-    0.39  0.060 / 0.100
G19     0.1            66.1                4.4 +/-    0.44       4.7 +/-    0.44  0.050 / 0.090
G24     301.7          35.3                5.6 +/-    1.03       8.8 +/-    1.03  0.040 / 0.110
G28     94.9           39.9                6.3 +/-    0.61       9.2 +/-    0.61  0.040 / 0.040