PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/30-18:27:50
G01     78.1           33.3               12.4 +/-    0.78      20.3 +/-    0.78  0.100 / 0.200
G07     133.6          36.9               14.2 +/-    1.51      21.7 +/-    1.51  0.090 / 0.150
G11     58.9           35.1               10.9 +/-    0.54      17.3 +/-    0.54  0.030 / 0.090
G13     282.3          37.8               14.3 +/-    0.98      21.6 +/-    0.98  0.040 / 0.080
G15     308.4          13.3               11.9 +/-    1.39      30.8 +/-    1.39  0.030 / 0.030
G17     224.2          60.9               14.1 +/-    0.85      15.9 +/-    0.85  0.030 / 0.040
G18     54.3           21.1                9.6 +/-    1.96      20.6 +/-    1.96  0.050 / 0.110
G19     220.1          34.6               13.6 +/-    0.82      21.7 +/-    0.82  0.050 / 0.140
G28     8.9            60.5               10.7 +/-    0.59      12.1 +/-    0.59  0.030 / 0.040
G30     127.8          67.1               13.5 +/-    0.60      14.6 +/-    0.60  0.030 / 0.050