PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/25-10:27:40
G03     307.4          11.1               -7.2 +/-   31.06     -19.5 +/-   31.06  0.090 / 0.330
G10     107.7          37.7                6.8 +/-    0.85      10.2 +/-    0.85  0.090 / 0.260
G11     279.0          28.0                6.0 +/-    0.78      11.0 +/-    0.78  0.080 / 0.120
G14     1.9            66.1                4.6 +/-    0.71       5.0 +/-    0.71  0.070 / 0.090
G18     271.7          51.0                6.6 +/-    1.17       8.3 +/-    1.17  0.050 / 0.080
G20     121.6          12.7                6.0 +/-    2.20      15.7 +/-    2.20  0.040 / 0.070
G22     311.5          31.2                4.6 +/-    1.47       7.9 +/-    1.47  0.040 / 0.040
G25     80.2           16.5                3.1 +/-    1.36       7.3 +/-    1.36  0.040 / 0.060
G31     165.8          66.1                8.6 +/-    1.30       9.3 +/-    1.30  0.090 / 0.200
G32     32.2           55.2                4.0 +/-    0.65       4.8 +/-    0.65  0.090 / 0.200