PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/11-07:57:30
G02     232.1          74.3                6.9 +/-    0.36       7.1 +/-    0.36  0.160 / 0.410
G05     174.9          10.6               -8.1 +/-   11.48     -22.3 +/-   11.48  0.140 / 0.470
G06     42.4           63.1                3.8 +/-    0.70       4.2 +/-    0.70  0.040 / 0.050
G12     321.4          49.0                3.7 +/-    0.56       4.7 +/-    0.56  0.030 / 0.040
G17     66.7           24.4                5.4 +/-    2.64      10.7 +/-    2.64  0.090 / 0.060
G19     53.2           39.8                2.8 +/-    2.29       4.1 +/-    2.29  0.060 / 0.060
G24     252.3          37.1                7.5 +/-    1.44      11.5 +/-    1.44  0.200 / 0.340
G28     127.7          12.8                7.6 +/-    1.80      19.9 +/-    1.80  0.220 / 0.390