PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/30-23:57:50
G02     27.2           60.4               10.0 +/-    0.89      11.3 +/-    0.89  0.030 / 0.040
G05     146.4          56.9               13.9 +/-    0.66      16.2 +/-    0.66  0.040 / 0.040
G06     50.7           19.9                8.7 +/-    0.89      19.2 +/-    0.89  0.030 / 0.040
G12     207.5          73.9               11.7 +/-    0.72      12.1 +/-    0.72  0.030 / 0.050
G19     94.3           15.2               11.4 +/-    1.01      28.3 +/-    1.01  0.030 / 0.050
G25     305.4          48.4               11.4 +/-    1.10      14.7 +/-    1.10  0.030 / 0.050
G29     302.4          22.4               10.7 +/-    1.00      22.2 +/-    1.00  0.070 / 0.220