PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/17-09:43:00
G02     39.9           48.5                4.6 +/-    1.57       5.9 +/-    1.57  0.030 / 0.030
G05     132.3          65.9                6.7 +/-    0.53       7.3 +/-    0.53  0.030 / 0.030
G06     56.2           11.7                3.4 +/-    2.09       9.1 +/-    2.09  0.040 / 0.040
G12     190.0          61.2                7.4 +/-    0.35       8.3 +/-    0.35  0.030 / 0.040
G25     287.7          56.6                2.7 +/-    3.09       3.1 +/-    3.09  0.060 / 0.110
G29     310.2          31.0                5.3 +/-    0.97       9.0 +/-    0.97  0.090 / 0.110