PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/05-19:27:50
G01     68.2           32.3               10.6 +/-    0.73      17.8 +/-    0.73  0.050 / 0.050
G07     137.9          23.2               14.3 +/-    2.41      29.2 +/-    2.41  0.040 / 0.060
G11     51.6           29.0                8.8 +/-    1.22      15.7 +/-    1.22  0.080 / 0.200
G13     271.3          38.1               11.7 +/-    0.87      17.6 +/-    0.87  0.070 / 0.160
G15     300.2          15.9                6.8 +/-    1.59      16.5 +/-    1.59  0.080 / 0.190
G17     235.5          70.9               11.7 +/-    1.20      12.3 +/-    1.20  0.090 / 0.160
G18     46.2           16.1                9.0 +/-    1.18      21.9 +/-    1.18  0.060 / 0.080
G19     224.7          44.1               12.5 +/-    0.82      17.1 +/-    0.82  0.040 / 0.090
G28     13.4           60.5               10.7 +/-    0.60      12.1 +/-    0.60  0.070 / 0.120
G30     137.3          57.9               12.4 +/-    0.59      14.3 +/-    0.59  0.060 / 0.130