PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/21-03:42:40
G08     313.3          16.7                7.9 +/-    2.23      18.8 +/-    2.23  0.040 / 0.060
G10     329.7          59.8                7.5 +/-    0.88       8.6 +/-    0.88  0.040 / 0.060
G14     216.3          28.2               15.3 +/-    1.60      27.9 +/-    1.60  0.070 / 0.030
G15     46.5           11.6                6.5 +/-    1.82      17.6 +/-    1.82  0.070 / 0.050
G20     32.3           61.4                8.4 +/-    0.45       9.4 +/-    0.45  0.030 / 0.010
G21     131.5          59.8               10.8 +/-    1.00      12.3 +/-    1.00  0.040 / 0.020
G24     77.1           30.1                8.0 +/-    0.47      14.0 +/-    0.47  0.110 / 0.250
G27     279.5          37.7               10.5 +/-    0.87      16.0 +/-    0.87  0.100 / 0.190
G32     220.6          47.4               11.5 +/-    0.94      15.0 +/-    0.94  0.140 / 0.090