PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/29-11:12:50
G01     270.1          41.7                7.3 +/-    2.51      10.3 +/-    2.51  0.050 / 0.060
G03     316.5          34.0                3.0 +/-    1.59       4.8 +/-    1.59  0.040 / 0.040
G10     129.4          15.9                6.7 +/-    1.00      16.3 +/-    1.00  0.060 / 0.070
G11     249.7          19.5                5.1 +/-    1.73      11.3 +/-    1.73  0.060 / 0.080
G14     43.6           49.7                3.6 +/-    0.89       4.6 +/-    0.89  0.120 / 0.210
G18     231.7          38.8                6.9 +/-    1.36      10.3 +/-    1.36  0.170 / 0.240
G22     314.4          55.9                4.3 +/-    1.67       5.1 +/-    1.67  0.100 / 0.300
G25     52.3           16.2                2.8 +/-    1.97       6.9 +/-    1.97  0.130 / 0.260
G31     57.5           74.4                5.3 +/-    0.63       5.5 +/-    0.63  0.040 / 0.060
G32     61.0           36.5                4.9 +/-    1.10       7.6 +/-    1.10  0.040 / 0.050