PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/25-07:12:40
G01     81.6           32.0                5.7 +/-    1.42       9.7 +/-    1.42  0.030 / 0.020
G07     129.8          40.1                7.6 +/-    0.54      11.0 +/-    0.54  0.030 / 0.020
G11     64.3           40.0                5.4 +/-    1.13       7.8 +/-    1.13  0.170 / 0.330
G13     287.0          38.6                3.8 +/-    2.65       5.7 +/-    2.65  0.150 / 0.310
G15     310.4          12.8                1.9 +/-    2.66       5.0 +/-    2.66  0.040 / 0.050
G17     217.5          58.2                7.4 +/-    0.82       8.5 +/-    0.82  0.040 / 0.050
G19     216.1          34.2                9.0 +/-    1.64      14.6 +/-    1.64  0.050 / 0.060
G28     342.1          61.4                3.8 +/-    0.38       4.2 +/-    0.38  0.030 / 0.060
G30     116.9          75.1                6.9 +/-    1.52       7.1 +/-    1.52  0.080 / 0.100