PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/10-19:28:00
G01     119.5          17.0               13.8 +/-    2.03      32.7 +/-    2.03  0.120 / 0.070
G07     87.4           62.2               12.4 +/-    1.05      13.8 +/-    1.05  0.060 / 0.060
G08     45.0           31.4                9.8 +/-    0.70      16.6 +/-    0.70  0.030 / 0.030
G09     177.7          28.2               13.4 +/-    1.82      24.4 +/-    1.82  0.040 / 0.040
G11     106.2          40.1               13.1 +/-    0.60      19.1 +/-    0.60  0.030 / 0.030
G13     317.8          19.4                9.6 +/-    1.43      21.4 +/-    1.43  0.040 / 0.040
G17     200.6          24.3               14.5 +/-    3.04      28.7 +/-    3.04  0.080 / 0.130
G18     92.6           20.3               11.7 +/-    1.44      25.6 +/-    1.44  0.070 / 0.130
G28     284.8          54.1               11.5 +/-    2.68      13.9 +/-    2.68  0.110 / 0.180
G30     347.4          68.9               12.4 +/-    0.67      13.2 +/-    0.67  0.110 / 0.190