PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/03-17:43:00
G01     123.3          13.9               10.3 +/-    1.97      26.3 +/-    1.97  0.040 / 0.070
G07     78.3           64.0               11.0 +/-    0.30      12.0 +/-    0.30  0.090 / 0.090
G08     47.7           36.1                8.5 +/-    0.52      13.2 +/-    0.52  0.050 / 0.090
G09     178.5          33.4               12.3 +/-    2.27      20.2 +/-    2.27  0.050 / 0.110
G11     112.5          38.1               11.6 +/-    0.85      17.5 +/-    0.85  0.060 / 0.110
G13     319.6          15.6                6.7 +/-    3.12      16.4 +/-    3.12  0.070 / 0.100
G17     199.9          18.8               13.0 +/-    2.38      29.4 +/-    2.38  0.130 / 0.330
G18     98.0           18.4                9.7 +/-    0.96      22.3 +/-    0.96  0.150 / 0.410
G28     276.7          51.4               10.4 +/-    0.99      12.9 +/-    0.99  0.030 / 0.050
G30     341.2          65.6                9.0 +/-    0.61       9.7 +/-    0.61  0.030 / 0.050