PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/07-18:28:00
G01     39.5           14.1                9.7 +/-    2.23      24.7 +/-    2.23  0.050 / 0.060
G06     174.6          40.5               14.4 +/-    1.19      20.7 +/-    1.19  0.040 / 0.070
G13     234.7          21.0               13.6 +/-    1.25      29.2 +/-    1.25  0.190 / 0.460
G15     268.2          11.5               11.1 +/-    1.96      29.9 +/-    1.96  0.140 / 0.230
G17     3.3            69.6               10.8 +/-    1.02      11.5 +/-    1.02  0.110 / 0.310
G19     285.2          70.8               11.8 +/-    0.62      12.4 +/-    0.62  0.110 / 0.300
G24     315.5          21.1                9.3 +/-    3.04      19.9 +/-    3.04  0.030 / 0.030
G28     69.1           49.7               11.3 +/-    0.92      14.3 +/-    0.92  0.030 / 0.040
G30     154.1          22.2               14.3 +/-    1.32      29.8 +/-    1.32  0.030 / 0.040