PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/02-04:57:50
G01     69.7           31.8                3.5 +/-    1.15       5.9 +/-    1.15  0.030 / 0.020
G07     136.3          32.3                7.6 +/-    1.50      12.6 +/-    1.50  0.030 / 0.020
G11     56.2           35.4                5.4 +/-    1.31       8.6 +/-    1.31  0.100 / 0.210
G13     274.4          39.0                5.5 +/-    1.06       8.2 +/-    1.06  0.100 / 0.190
G15     301.0          16.3                3.1 +/-    1.66       7.5 +/-    1.66  0.040 / 0.040
G17     229.4          68.8                5.1 +/-    0.86       5.4 +/-    0.86  0.040 / 0.050
G19     222.1          43.4                6.8 +/-    1.90       9.4 +/-    1.90  0.040 / 0.030
G28     359.3          61.5                3.8 +/-    0.40       4.3 +/-    0.40  0.030 / 0.030
G30     134.7          67.3                6.3 +/-    0.91       6.8 +/-    0.91  0.110 / 0.070