PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/27-23:43:10
G02     245.8          77.2               12.5 +/-    0.62      12.8 +/-    0.62  0.070 / 0.120
G05     170.6          17.3               19.9 +/-    1.13      46.7 +/-    1.13  0.080 / 0.130
G06     39.8           60.5               11.5 +/-    0.65      13.0 +/-    0.65  0.050 / 0.040
G12     320.8          49.8               11.2 +/-    0.96      14.2 +/-    0.96  0.040 / 0.030
G17     71.4           21.3               10.0 +/-    0.99      21.4 +/-    0.99  0.170 / 0.310
G19     57.7           37.8               11.4 +/-    0.48      17.2 +/-    0.48  0.100 / 0.270
G24     243.2          34.2               16.6 +/-    0.54      26.8 +/-    0.54  0.050 / 0.040
G25     316.5          13.4               10.3 +/-    3.39      26.7 +/-    3.39  0.040 / 0.040