PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/09-00:42:30
G07     311.2          49.1                4.4 +/-    0.92       5.6 +/-    0.92  0.150 / 0.320
G08     121.5          43.5                8.2 +/-    0.43      11.3 +/-    0.43  0.200 / 0.260
G09     238.3          85.6                7.7 +/-    0.46       7.7 +/-    0.46  0.200 / 0.400
G16     42.9           18.8                3.0 +/-    2.95       6.9 +/-    2.95  0.160 / 0.300
G23     147.7          60.2                7.5 +/-    0.56       8.5 +/-    0.56  0.050 / 0.050
G27     74.2           36.7                7.6 +/-    0.75      11.7 +/-    0.75  0.040 / 0.060
G30     287.3          21.4                5.9 +/-    1.93      12.5 +/-    1.93  0.050 / 0.070