PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/25-20:42:40
G02     200.1          20.1               16.1 +/-    2.45      35.2 +/-    2.45  0.090 / 0.120
G06     170.0          53.8               15.3 +/-    0.50      18.5 +/-    0.50  0.080 / 0.120
G13     228.0          13.7               15.3 +/-    1.80      39.3 +/-    1.80  0.150 / 0.300
G17     16.4           62.6               12.3 +/-    0.58      13.7 +/-    0.58  0.170 / 0.380
G19     314.1          70.8               11.5 +/-    0.38      12.1 +/-    0.38  0.050 / 0.040
G24     310.4          29.3               11.2 +/-    1.62      19.9 +/-    1.62  0.040 / 0.040
G28     87.2           40.1               12.5 +/-    1.38      18.2 +/-    1.38  0.030 / 0.030
G30     156.9          15.0               15.6 +/-    1.36      38.7 +/-    1.36  0.040 / 0.030