PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/24-09:12:50
G08     270.0          19.5                7.8 +/-    3.53      17.4 +/-    3.53  0.110 / 0.240
G10     57.2           58.5                2.7 +/-    0.53       3.1 +/-    0.53  0.180 / 0.300
G14     260.8          65.3                5.7 +/-    0.91       6.2 +/-    0.91  0.040 / 0.020
G18     313.3          31.2                4.1 +/-    1.25       7.0 +/-    1.25  0.030 / 0.020
G20     92.7           38.4                3.9 +/-    1.01       5.9 +/-    1.01  0.230 / 0.580
G21     154.0          16.8                3.1 +/-    3.57       7.3 +/-    3.57  0.200 / 0.210
G24     40.5           11.1                1.5 +/-    2.02       4.1 +/-    2.02  0.040 / 0.060
G27     235.4          18.5                5.7 +/-    4.61      12.9 +/-    4.61  0.040 / 0.060
G31     179.2          26.8                5.3 +/-    1.86       9.9 +/-    1.86  0.190 / 0.260
G32     307.7          74.7                4.0 +/-    0.73       4.1 +/-    0.73  0.210 / 0.250