PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/22-22:43:00
G02     226.7          69.9               11.2 +/-    1.00      11.9 +/-    1.00  0.040 / 0.070
G05     173.7          10.9                9.7 +/-   41.23      26.6 +/-   41.23  0.050 / 0.060
G06     44.0           64.7               10.5 +/-    0.53      11.5 +/-    0.53  0.140 / 0.240
G12     321.1          45.7                8.7 +/-    1.32      11.6 +/-    1.32  0.130 / 0.260
G17     63.7           29.0                8.6 +/-    0.65      15.4 +/-    0.65  0.070 / 0.090
G19     48.3           44.4               10.4 +/-    0.76      14.1 +/-    0.76  0.060 / 0.080
G24     252.9          38.4               13.5 +/-    1.17      20.2 +/-    1.17  0.030 / 0.040