PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/27-19:42:50
G02     258.8          78.7               10.2 +/-    0.49      10.4 +/-    0.49  0.150 / 0.160
G05     169.5          20.5               11.0 +/-    0.96      24.0 +/-    0.96  0.140 / 0.160
G06     39.6           54.0                8.9 +/-    0.93      10.7 +/-    0.93  0.120 / 0.480
G12     320.7          54.6                8.2 +/-    1.52       9.8 +/-    1.52  0.180 / 0.460
G17     73.4           21.0                8.4 +/-    0.73      18.1 +/-    0.73  0.030 / 0.040
G19     62.1           34.6                8.3 +/-    0.58      13.3 +/-    0.58  0.050 / 0.040
G24     240.6          31.9               13.9 +/-    1.59      23.5 +/-    1.59  0.050 / 0.060
G25     317.0          15.6                7.8 +/-    3.98      19.1 +/-    3.98  0.050 / 0.060