PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/24-17:42:30
G02     38.6           50.3                7.1 +/-    1.45       9.0 +/-    1.45  0.070 / 0.060
G05     120.5          68.4                9.5 +/-    0.75      10.2 +/-    0.75  0.050 / 0.050
G12     190.7          58.0                8.7 +/-    0.54      10.1 +/-    0.54  0.050 / 0.040
G25     282.0          57.1                9.3 +/-    2.29      10.8 +/-    2.29  0.040 / 0.040
G29     313.5          34.9                7.3 +/-    1.69      11.7 +/-    1.69  0.030 / 0.040