PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/07-00:13:00
G01     50.1           25.5                7.7 +/-    2.32      14.9 +/-    2.32  0.060 / 0.040
G06     181.0          20.4               10.4 +/-    2.39      22.8 +/-    2.39  0.060 / 0.040
G11     44.2           14.2                6.1 +/-    1.58      15.4 +/-    1.58  0.080 / 0.120
G13     250.1          31.1                8.7 +/-    3.01      15.0 +/-    3.01  0.160 / 0.170
G15     283.6          15.8                6.7 +/-    1.33      16.4 +/-    1.33  0.030 / 0.060
G17     323.0          79.0                9.6 +/-    0.56       9.7 +/-    0.56  0.030 / 0.050
G19     245.1          59.2                8.7 +/-    0.98      10.0 +/-    0.98  0.100 / 0.190
G28     46.8           55.2                7.8 +/-    0.92       9.3 +/-    0.92  0.080 / 0.210
G30     149.5          41.6                9.9 +/-    1.35      14.0 +/-    1.35  0.150 / 0.130