PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/27-11:27:00
G02     47.2           42.0                3.5 +/-    0.56       5.0 +/-    0.56  0.030 / 0.040
G05     107.0          70.5                5.4 +/-    1.30       5.7 +/-    1.30  0.030 / 0.030
G12     184.9          49.1                7.9 +/-    1.89      10.0 +/-    1.89  0.040 / 0.050
G25     268.4          58.5                6.5 +/-    0.82       7.5 +/-    0.82  0.060 / 0.060
G29     316.9          38.7                4.2 +/-    0.96       6.2 +/-    0.96  0.070 / 0.060