PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/27-22:43:10
G02     200.2          23.7               17.2 +/-    3.04      34.5 +/-    3.04  0.210 / 0.210
G06     169.4          56.5               14.0 +/-    0.53      16.4 +/-    0.53  0.250 / 0.290
G13     226.0          11.7               17.1 +/-    1.50      46.0 +/-    1.50  0.070 / 0.090
G17     17.9           61.4               11.3 +/-    0.79      12.7 +/-    0.79  0.060 / 0.110
G19     326.1          70.5               11.6 +/-    0.39      12.2 +/-    0.39  0.030 / 0.030
G24     308.7          31.0               11.6 +/-    1.56      20.0 +/-    1.56  0.040 / 0.040
G28     90.5           38.3               12.1 +/-    1.37      18.1 +/-    1.37  0.100 / 0.120
G30     156.9          11.5               16.1 +/-    3.80      43.4 +/-    3.80  0.080 / 0.100