PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/07-09:57:30
G02     29.6           57.9                4.9 +/-    1.01       5.7 +/-    1.01  0.040 / 0.040
G05     151.7          55.4               10.0 +/-    0.63      11.9 +/-    0.63  0.050 / 0.040
G06     50.0           20.1                3.6 +/-    1.74       7.8 +/-    1.74  0.080 / 0.150
G12     201.8          73.6                7.4 +/-    0.30       7.7 +/-    0.30  0.080 / 0.090
G19     95.3           11.2                7.7 +/-    1.67      20.9 +/-    1.67  0.090 / 0.130
G25     304.6          49.1                4.0 +/-    5.02       5.1 +/-    5.02  0.130 / 0.140
G29     302.0          22.6                5.2 +/-    1.94      10.8 +/-    1.94  0.040 / 0.040