PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/05-19:58:10
G01     84.5           32.9               22.7 +/-    0.84      37.5 +/-    0.84  0.050 / 0.110
G07     129.7          41.7               24.8 +/-    0.73      35.1 +/-    0.73  0.050 / 0.100
G11     64.5           38.4               19.3 +/-    0.73      28.9 +/-    0.73  0.070 / 0.170
G13     289.1          37.0               21.8 +/-    1.95      33.4 +/-    1.95  0.060 / 0.140
G15     312.1          11.9               14.8 +/-    1.90      39.6 +/-    1.90  0.090 / 0.280
G17     219.0          54.4               26.7 +/-    1.38      32.0 +/-    1.38  0.100 / 0.240
G18     59.4           22.9               18.6 +/-    0.82      38.1 +/-    0.82  0.040 / 0.070
G19     217.1          30.4               27.8 +/-    1.81      48.4 +/-    1.81  0.040 / 0.050
G28     359.2          61.3               19.9 +/-    1.10      22.3 +/-    1.10  0.030 / 0.060
G30     118.6          71.0               24.6 +/-    0.67      25.9 +/-    0.67  0.050 / 0.060