PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/26-18:57:40
G02     215.3          58.4                9.9 +/-    0.90      11.4 +/-    0.90  0.120 / 0.340
G06     62.0           75.8                9.7 +/-    0.49       9.9 +/-    0.49  0.100 / 0.250
G12     317.2          33.0                6.3 +/-    1.91      10.3 +/-    1.91  0.040 / 0.060
G17     54.9           34.5                8.3 +/-    1.92      13.2 +/-    1.92  0.040 / 0.060
G19     38.8           49.0                8.8 +/-    1.03      11.3 +/-    1.03  0.110 / 0.080
G24     267.0          41.6               10.5 +/-    2.14      14.9 +/-    2.14  0.060 / 0.070
G28     120.1          19.5               10.2 +/-    1.42      22.6 +/-    1.42  0.060 / 0.080