PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/10-00:57:50
G02     14.1           69.5                9.6 +/-    0.68      10.2 +/-    0.68  0.020 / 0.030
G05     156.7          45.6               15.4 +/-    0.53      20.6 +/-    0.53  0.040 / 0.030
G06     45.4           29.8                8.0 +/-    1.15      14.1 +/-    1.15  0.040 / 0.070
G12     269.7          79.7               11.1 +/-    0.66      11.2 +/-    0.66  0.050 / 0.080
G19     84.5           21.7               11.9 +/-    1.09      25.1 +/-    1.09  0.040 / 0.050
G24     220.1          14.9               15.1 +/-    4.73      37.7 +/-    4.73  0.040 / 0.040
G25     314.0          38.3               11.0 +/-    1.82      16.5 +/-    1.82  0.070 / 0.100
G29     294.1          15.0                8.8 +/-    2.68      21.9 +/-    2.68  0.050 / 0.090