PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/12-03:13:00
G01     103.7          25.3                7.7 +/-    2.60      14.9 +/-    2.60  0.030 / 0.020
G07     107.2          58.2                6.7 +/-    0.53       7.7 +/-    0.53  0.030 / 0.020
G08     41.6           18.7                3.6 +/-    1.86       8.1 +/-    1.86  0.220 / 0.160
G11     93.1           45.6                5.6 +/-    0.67       7.5 +/-    0.67  0.110 / 0.130
G13     308.4          30.5                5.4 +/-    1.19       9.4 +/-    1.19  0.050 / 0.080
G17     204.6          39.1                8.5 +/-    1.04      12.6 +/-    1.04  0.040 / 0.070
G19     207.9          15.7                3.8 +/-   10.26       9.2 +/-   10.26  0.040 / 0.070
G28     302.4          56.9                5.2 +/-    1.04       6.1 +/-    1.04  0.040 / 0.050
G30     4.9            77.2                5.8 +/-    0.16       6.0 +/-    0.16  0.390 / 0.260