PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/05-21:12:40
G02     200.4          23.2               14.2 +/-    2.91      28.9 +/-    2.91  0.290 / 0.670
G06     172.1          54.4               13.1 +/-    0.40      15.7 +/-    0.40  0.350 / 0.620
G13     224.7          11.9               13.3 +/-    1.94      35.6 +/-    1.94  0.080 / 0.110
G17     24.6           57.9               11.4 +/-    0.74      13.2 +/-    0.74  0.080 / 0.120
G19     331.1          70.7               10.4 +/-    0.68      10.9 +/-    0.68  0.070 / 0.080
G24     307.8          31.8               10.2 +/-    1.39      17.2 +/-    1.39  0.050 / 0.080
G28     87.1           42.3               12.1 +/-    1.30      16.9 +/-    1.30  0.140 / 0.430
G30     156.6          10.7               16.5 +/-    2.26      45.3 +/-    2.26  0.150 / 0.530