PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/28-14:57:20
G02     31.3           56.2                8.5 +/-    0.41      10.0 +/-    0.41  0.030 / 0.040
G05     145.2          60.9               11.5 +/-    0.51      12.9 +/-    0.51  0.050 / 0.040
G06     53.4           14.9                5.6 +/-    0.80      14.0 +/-    0.80  0.040 / 0.070
G12     195.6          67.8                8.5 +/-    1.00       9.1 +/-    1.00  0.040 / 0.070
G25     298.2          52.5                7.7 +/-    1.28       9.5 +/-    1.28  0.030 / 0.040
G29     306.5          27.1                5.0 +/-    1.99       9.3 +/-    1.99  0.030 / 0.040