PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/27-15:42:40
G02     272.1          78.9                8.6 +/-    0.90       8.7 +/-    0.90  0.080 / 0.130
G05     169.2          23.3               14.7 +/-    0.88      29.9 +/-    0.88  0.070 / 0.150
G06     39.8           48.4                8.0 +/-    0.46      10.3 +/-    0.46  0.030 / 0.050
G12     320.0          61.1                8.8 +/-    0.41       9.9 +/-    0.41  0.040 / 0.040
G17     76.4           19.4                8.7 +/-    1.06      19.5 +/-    1.06  0.130 / 0.290
G19     66.6           31.3                9.1 +/-    0.82      15.6 +/-    0.82  0.100 / 0.310
G24     237.4          29.2               11.2 +/-    1.43      19.9 +/-    1.43  0.190 / 0.170
G25     317.3          19.1                7.6 +/-    1.71      17.1 +/-    1.71  0.050 / 0.050