PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/26-17:28:00
G02     200.1          16.7                9.8 +/-    1.51      23.3 +/-    1.51  0.080 / 0.170
G06     171.8          49.8               10.9 +/-    1.40      13.8 +/-    1.40  0.080 / 0.180
G13     228.4          15.6                9.7 +/-    1.84      23.7 +/-    1.84  0.050 / 0.100
G17     14.7           63.9                7.5 +/-    0.75       8.3 +/-    0.75  0.050 / 0.100
G19     314.5          71.9                8.3 +/-    0.94       8.6 +/-    0.94  0.100 / 0.190
G24     311.9          27.0                9.2 +/-    2.12      17.2 +/-    2.12  0.070 / 0.210
G28     79.5           46.0                8.8 +/-    0.28      11.7 +/-    0.28  0.040 / 0.040
G30     155.9          15.6               11.7 +/-    1.94      28.6 +/-    1.94  0.050 / 0.040