PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/02/08-22:42:50
G07     17.6           67.6                8.2 +/-    0.80       8.8 +/-    0.80  0.160 / 0.220
G08     65.5           48.0                7.9 +/-    1.61      10.2 +/-    1.61  0.120 / 0.150
G09     180.0          53.5               10.8 +/-    0.39      13.1 +/-    0.39  0.040 / 0.030
G11     131.2          26.1               10.5 +/-    1.91      20.1 +/-    1.91  0.040 / 0.040
G23     160.4          24.7               10.1 +/-    2.00      19.8 +/-    2.00  0.080 / 0.120
G27     43.3           22.1                6.6 +/-    2.36      13.9 +/-    2.36  0.080 / 0.120
G28     252.7          40.3               10.5 +/-    1.06      15.2 +/-    1.06  0.060 / 0.040
G30     316.6          47.6                8.5 +/-    0.56      11.0 +/-    0.56  0.070 / 0.040