PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/07-09:57:40
G02     218.7          64.2                7.5 +/-    1.45       8.2 +/-    1.45  0.070 / 0.060
G06     51.5           71.1                5.5 +/-    0.72       5.8 +/-    0.72  0.070 / 0.060
G12     319.8          41.6                4.6 +/-    1.65       6.5 +/-    1.65  0.060 / 0.080
G17     59.0           30.6               -0.6 +/-    0.56      -1.0 +/-    0.56  0.080 / 0.090
G19     44.1           45.6                3.6 +/-    0.67       4.8 +/-    0.67  0.050 / 0.040
G24     263.4          40.3                8.0 +/-    2.09      11.6 +/-    2.09  0.050 / 0.040
G28     122.2          19.0                6.1 +/-    1.75      13.8 +/-    1.75  0.110 / 0.300