PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/17-07:13:10
G01     40.1           15.2                1.9 +/-    1.54       4.7 +/-    1.54  0.070 / 0.100
G06     173.7          38.5                8.3 +/-    1.07      12.4 +/-    1.07  0.070 / 0.110
G13     236.7          23.2                9.2 +/-    1.98      18.8 +/-    1.98  0.030 / 0.020
G15     269.3          12.6                5.1 +/-    3.49      13.4 +/-    3.49  0.040 / 0.030
G17     0.8            71.2                5.5 +/-    0.45       5.8 +/-    0.45  0.170 / 0.230
G19     278.4          70.7                6.3 +/-    1.27       6.6 +/-    1.27  0.260 / 0.370
G24     317.0          17.2                3.0 +/-    1.78       7.0 +/-    1.78  0.040 / 0.070
G28     61.0           53.3                5.7 +/-    0.87       6.9 +/-    0.87  0.040 / 0.060
G30     155.5          31.7                7.8 +/-    1.39      13.1 +/-    1.39  0.100 / 0.070