PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/02/05-00:27:50
G01     105.5          26.0                9.4 +/-    1.63      18.0 +/-    1.63  0.070 / 0.050
G07     111.0          53.6                8.6 +/-    0.47      10.4 +/-    0.47  0.050 / 0.050
G08     41.4           17.1                5.2 +/-    1.81      12.4 +/-    1.81  0.120 / 0.200
G09     174.4          12.4                9.5 +/-    1.23      25.0 +/-    1.23  0.140 / 0.160
G11     84.6           42.6                8.9 +/-    1.21      12.4 +/-    1.21  0.030 / 0.040
G13     308.3          30.1                8.0 +/-    1.19      14.0 +/-    1.19  0.030 / 0.040
G17     205.1          41.6                9.2 +/-    1.11      13.1 +/-    1.11  0.080 / 0.120
G18     74.5           23.2                6.1 +/-    1.87      12.4 +/-    1.87  0.090 / 0.120
G28     314.3          60.1                6.9 +/-    0.86       7.9 +/-    0.86  0.250 / 0.300
G30     26.5           78.8                8.2 +/-    0.88       8.4 +/-    0.88  0.240 / 0.310