PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/12-05:13:00
G01     44.9           20.9                2.5 +/-    0.44       5.4 +/-    0.44  0.040 / 0.050
G06     175.9          29.2                7.4 +/-    1.05      13.2 +/-    1.05  0.050 / 0.080
G11     44.6           15.5                3.0 +/-    0.92       7.4 +/-    0.92  0.120 / 0.320
G13     244.3          28.7                7.3 +/-    2.04      13.1 +/-    2.04  0.070 / 0.180
G15     276.2          15.3                4.8 +/-    1.43      11.9 +/-    1.43  0.080 / 0.170
G17     339.3          77.0                7.1 +/-    0.42       7.3 +/-    0.42  0.130 / 0.450
G19     255.6          65.8                6.5 +/-    0.81       7.1 +/-    0.81  0.130 / 0.500
G24     318.7          10.3              -17.6 +/-   12.94     -48.7 +/-   12.94  0.040 / 0.070
G28     46.6           56.7                5.6 +/-    0.80       6.6 +/-    0.80  0.040 / 0.050
G30     153.0          41.0                9.5 +/-    1.62      13.5 +/-    1.62  0.040 / 0.040