PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/30-18:28:10
G07     335.0          59.1                9.4 +/-    0.54      10.7 +/-    0.54  0.030 / 0.040
G08     104.2          50.1               10.9 +/-    0.41      13.7 +/-    0.41  0.030 / 0.040
G09     205.3          78.8                9.3 +/-    0.32       9.5 +/-    0.32  0.080 / 0.070
G11     147.2          11.4               14.7 +/-    4.35      39.7 +/-    4.35  0.060 / 0.070
G16     45.0           14.6                6.4 +/-    2.92      16.1 +/-    2.92  0.150 / 0.250
G23     154.2          47.2               11.2 +/-    0.57      14.6 +/-    0.57  0.130 / 0.150
G27     61.4           35.0                8.9 +/-    1.28      14.1 +/-    1.28  0.030 / 0.020
G28     232.9          22.2               10.7 +/-    2.24      22.3 +/-    2.24  0.030 / 0.030
G30     298.9          33.1                8.0 +/-    2.22      13.2 +/-    2.22  0.080 / 0.150