PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/10-07:57:40
G02     228.2          72.5                6.1 +/-    0.50       6.3 +/-    0.50  0.050 / 0.060
G06     43.6           65.0                4.1 +/-    0.72       4.4 +/-    0.72  0.040 / 0.050
G12     321.1          47.2                4.3 +/-    0.67       5.7 +/-    0.67  0.030 / 0.030
G17     65.1           25.5                5.5 +/-    1.01      10.6 +/-    1.01  0.040 / 0.030
G19     51.3           41.0                3.2 +/-    1.80       4.6 +/-    1.80  0.160 / 0.370
G24     254.5          37.9                6.2 +/-    1.35       9.3 +/-    1.35  0.150 / 0.330
G28     126.6          14.3                6.6 +/-    2.40      16.8 +/-    2.40  0.060 / 0.100