PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/08-18:28:00
G01     94.7           30.1                9.9 +/-    1.26      17.3 +/-    1.26  0.040 / 0.060
G07     122.5          42.8               11.2 +/-    1.03      15.6 +/-    1.03  0.040 / 0.050
G08     41.8           11.0                9.9 +/-    1.52      27.0 +/-    1.52  0.040 / 0.090
G11     72.5           41.3               10.3 +/-    0.54      14.7 +/-    0.54  0.050 / 0.080
G13     298.9          35.3               11.1 +/-    1.59      17.4 +/-    1.59  0.030 / 0.060
G17     210.5          49.1               12.8 +/-    1.22      16.3 +/-    1.22  0.040 / 0.070
G18     66.5           23.8                9.8 +/-    1.06      19.6 +/-    1.06  0.070 / 0.140
G19     212.0          23.5               11.2 +/-    2.57      22.6 +/-    2.57  0.080 / 0.140
G28     329.8          61.2                8.2 +/-    1.15       9.2 +/-    1.15  0.060 / 0.160
G30     93.2           76.9               11.1 +/-    0.79      11.4 +/-    0.79  0.080 / 0.180