PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/22-18:28:00
G02     29.6           58.1                8.3 +/-    0.62       9.6 +/-    0.62  0.040 / 0.030
G05     141.3          61.6               10.5 +/-    0.26      11.8 +/-    0.26  0.030 / 0.030
G06     54.2           14.1                7.0 +/-    2.91      17.7 +/-    2.91  0.030 / 0.040
G12     189.4          64.9                8.6 +/-    0.49       9.4 +/-    0.49  0.030 / 0.040
G19     98.4           13.0                8.6 +/-    3.36      22.3 +/-    3.36  0.040 / 0.050
G25     296.6          54.1                8.5 +/-    2.29      10.2 +/-    2.29  0.050 / 0.050
G29     306.3          26.3                8.0 +/-    1.60      15.2 +/-    1.60  0.150 / 0.240