PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/25-00:57:40
G02     11.6           70.3                6.9 +/-    0.36       7.3 +/-    0.36  0.050 / 0.110
G05     157.8          44.1               11.2 +/-    0.83      15.3 +/-    0.83  0.060 / 0.090
G06     43.6           34.0                7.3 +/-    0.61      11.8 +/-    0.61  0.130 / 0.190
G12     289.1          76.8                7.7 +/-    1.03       7.9 +/-    1.03  0.170 / 0.240
G19     83.7           20.9               10.0 +/-    1.28      21.5 +/-    1.28  0.040 / 0.040
G24     220.2          15.5               10.5 +/-    2.83      25.8 +/-    2.83  0.030 / 0.040
G25     314.0          38.5                8.0 +/-    1.89      12.0 +/-    1.89  0.070 / 0.180
G29     294.8          18.3                8.3 +/-    1.68      19.0 +/-    1.68  0.080 / 0.190