PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/13-23:42:40
G02     12.9           69.4               11.1 +/-    0.64      11.8 +/-    0.64  0.050 / 0.100
G05     157.1          45.3               15.6 +/-    0.73      21.0 +/-    0.73  0.070 / 0.100
G06     44.3           32.1                8.6 +/-    1.56      14.4 +/-    1.56  0.220 / 0.240
G12     283.2          77.7               11.6 +/-    0.68      11.9 +/-    0.68  0.260 / 0.320
G19     84.9           19.9               11.4 +/-    0.69      25.2 +/-    0.69  0.030 / 0.020
G24     219.7          14.7               16.6 +/-   17.47      41.4 +/-   17.47  0.030 / 0.030
G25     313.5          39.2               10.4 +/-    2.35      15.4 +/-    2.35  0.040 / 0.040
G29     295.3          18.3                9.6 +/-    1.72      22.1 +/-    1.72  0.030 / 0.050