PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/28-22:42:40
G01     50.0           25.4                9.2 +/-    2.48      17.8 +/-    2.48  0.040 / 0.040
G06     180.1          21.4               10.2 +/-    1.68      21.8 +/-    1.68  0.030 / 0.050
G11     44.2           14.3                8.0 +/-    1.88      20.3 +/-    1.88  0.060 / 0.040
G13     250.0          31.1               10.1 +/-    2.36      17.4 +/-    2.36  0.050 / 0.040
G15     283.3          15.8                9.1 +/-    1.11      22.3 +/-    1.11  0.150 / 0.210
G17     320.2          79.0                9.6 +/-    0.42       9.7 +/-    0.42  0.140 / 0.150
G19     245.3          59.6                9.4 +/-    0.98      10.7 +/-    0.98  0.050 / 0.050
G28     46.3           55.4                8.8 +/-    1.13      10.4 +/-    1.13  0.050 / 0.050
G30     149.4          40.9               10.9 +/-    1.93      15.6 +/-    1.93  0.120 / 0.150