PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/10-15:12:40
G01     55.7           28.5                8.3 +/-    1.26      15.1 +/-    1.26  0.080 / 0.160
G06     179.2          19.0               11.0 +/-    1.94      24.7 +/-    1.94  0.080 / 0.170
G07     143.6          15.5                8.6 +/-    1.30      21.1 +/-    1.30  0.040 / 0.050
G11     45.8           17.7                7.5 +/-    1.32      17.4 +/-    1.32  0.040 / 0.050
G13     259.9          33.3               11.9 +/-    1.36      19.5 +/-    1.36  0.050 / 0.090
G17     291.6          80.0               11.7 +/-    0.61      11.9 +/-    0.61  0.050 / 0.100
G19     238.5          56.7               10.9 +/-    1.27      12.8 +/-    1.27  0.070 / 0.130
G28     42.8           55.1                9.6 +/-    0.55      11.4 +/-    0.55  0.190 / 0.180
G30     146.2          50.2               11.5 +/-    0.89      14.5 +/-    0.89  0.030 / 0.030