PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/11-18:12:40
G01     39.2           13.6                9.5 +/-    2.24      24.4 +/-    2.24  0.040 / 0.060
G06     174.4          41.3               13.9 +/-    1.05      19.8 +/-    1.05  0.040 / 0.070
G13     234.2          20.6               15.1 +/-    1.83      32.8 +/-    1.83  0.130 / 0.290
G15     267.7          11.2               12.9 +/-    1.98      35.1 +/-    1.98  0.160 / 0.260
G17     4.1            69.2               11.5 +/-    1.03      12.2 +/-    1.03  0.110 / 0.260
G19     287.5          71.0               12.5 +/-    0.85      13.2 +/-    0.85  0.200 / 0.420
G24     315.3          21.5               10.5 +/-    2.85      22.3 +/-    2.85  0.030 / 0.040
G28     69.9           49.5               11.6 +/-    1.06      14.7 +/-    1.06  0.040 / 0.040
G30     154.3          21.9               13.3 +/-    2.39      28.0 +/-    2.39  0.030 / 0.030