PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/22-07:43:10
G08     313.4          17.1                3.9 +/-    1.48       9.2 +/-    1.48  0.040 / 0.040
G10     325.2          59.0                5.2 +/-    0.73       6.0 +/-    0.73  0.030 / 0.040
G14     215.3          27.0                4.0 +/-    1.17       7.5 +/-    1.17  0.040 / 0.050
G15     46.2           13.1                0.9 +/-    0.96       2.4 +/-    0.96  0.030 / 0.060
G20     28.9           62.0                3.9 +/-    0.72       4.4 +/-    0.72  0.060 / 0.080
G21     129.3          59.8                5.7 +/-    0.53       6.5 +/-    0.53  0.070 / 0.080
G24     78.4           29.6                4.6 +/-    1.06       8.2 +/-    1.06  0.080 / 0.180
G27     283.0          37.4                5.0 +/-    0.74       7.6 +/-    0.74  0.080 / 0.170
G32     219.4          42.8                7.5 +/-    1.43      10.4 +/-    1.43  0.070 / 0.130