PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/13-15:57:40
G02     223.0          64.0              -15.0 +/-    0.83     -16.5 +/-    0.83  0.030 / 0.080
G06     46.5           67.8                9.9 +/-    0.77      10.6 +/-    0.77  0.040 / 0.080
G12     319.7          41.3                9.4 +/-    1.05      13.5 +/-    1.05  0.120 / 0.270
G17     60.0           31.4                9.7 +/-    0.39      16.4 +/-    0.39  0.110 / 0.290
G19     47.5           43.6               10.1 +/-    0.76      13.9 +/-    0.76  0.060 / 0.050
G24     258.0          39.3               11.8 +/-    1.15      17.4 +/-    1.15  0.050 / 0.060
G28     125.0          14.6               10.6 +/-    1.38      26.5 +/-    1.38  0.060 / 0.090