PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/25-17:58:00
G07     337.2          59.5               11.7 +/-    0.48      13.4 +/-    0.48  0.030 / 0.040
G08     98.9           53.6               15.6 +/-    0.45      18.8 +/-    0.45  0.040 / 0.040
G09     188.8          70.5               13.2 +/-    0.68      13.9 +/-    0.68  0.050 / 0.100
G11     144.9          14.9               13.2 +/-    2.27      32.8 +/-    2.27  0.060 / 0.130
G23     155.0          33.4               13.0 +/-    1.63      21.2 +/-    1.63  0.070 / 0.060
G27     51.6           29.5               11.4 +/-    1.40      20.1 +/-    1.40  0.120 / 0.080
G28     240.3          32.6               14.1 +/-    1.71      23.5 +/-    1.71  0.040 / 0.040
G30     305.7          38.7               12.4 +/-    1.13      18.4 +/-    1.13  0.030 / 0.040