PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/26-15:28:00
G01     83.1           32.4                7.8 +/-    0.82      13.1 +/-    0.82  0.050 / 0.060
G07     130.1          36.4                9.6 +/-    0.55      14.8 +/-    0.55  0.050 / 0.050
G11     62.3           37.8                7.8 +/-    0.84      11.8 +/-    0.84  0.060 / 0.080
G13     287.5          38.3                7.7 +/-    1.81      11.5 +/-    1.81  0.050 / 0.060
G15     311.2          12.4                7.3 +/-    2.18      19.4 +/-    2.18  0.040 / 0.060
G17     217.9          56.6               10.2 +/-    1.00      11.9 +/-    1.00  0.040 / 0.080
G18     57.4           22.1                6.9 +/-    2.15      14.5 +/-    2.15  0.070 / 0.050
G19     216.3          33.0                9.8 +/-    1.49      16.2 +/-    1.49  0.040 / 0.050
G28     346.8          61.6                8.2 +/-    0.48       9.2 +/-    0.48  0.080 / 0.100
G30     120.7          69.6                9.5 +/-    0.87      10.1 +/-    0.87  0.070 / 0.090