PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/30-20:27:50
G01     113.6          21.2               12.4 +/-    1.61      26.5 +/-    1.61  0.040 / 0.030
G07     99.4           58.2               11.8 +/-    1.34      13.6 +/-    1.34  0.030 / 0.040
G08     42.7           25.3                8.9 +/-    2.16      17.2 +/-    2.16  0.100 / 0.200
G09     176.6          21.4               11.6 +/-    1.44      24.7 +/-    1.44  0.080 / 0.190
G11     97.0           42.1               12.3 +/-    0.87      17.3 +/-    0.87  0.040 / 0.060
G13     314.3          24.5                7.5 +/-    1.26      14.9 +/-    1.26  0.040 / 0.060
G17     202.2          31.5               12.3 +/-    1.20      20.8 +/-    1.20  0.140 / 0.200
G18     85.3           22.3               12.2 +/-    2.81      25.3 +/-    2.81  0.150 / 0.270
G28     296.5          57.1               10.0 +/-    0.94      11.7 +/-    0.94  0.040 / 0.030
G30     1.3            73.9               10.8 +/-    1.11      11.2 +/-    1.11  0.030 / 0.030