PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/17-09:28:10
G02     225.6          70.1                6.3 +/-    0.58       6.6 +/-    0.58  0.050 / 0.110
G06     44.7           66.0                4.7 +/-    0.49       5.1 +/-    0.49  0.040 / 0.090
G12     321.4          47.4                4.8 +/-    1.02       6.2 +/-    1.02  0.040 / 0.060
G17     63.7           26.9                2.4 +/-    1.89       4.4 +/-    1.89  0.040 / 0.050
G19     49.8           41.9                3.5 +/-    0.99       5.0 +/-    0.99  0.160 / 0.370
G24     256.4          38.5                9.7 +/-    1.62      14.5 +/-    1.62  0.140 / 0.410
G28     125.8          15.0                7.9 +/-    3.30      19.6 +/-    3.30  0.040 / 0.050