PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/25-21:12:30
G10     255.4          32.0               11.0 +/-    1.77      18.5 +/-    1.77  0.050 / 0.060
G13     48.6           25.5                8.6 +/-    0.93      16.6 +/-    0.93  0.050 / 0.060
G15     76.8           56.4                9.0 +/-    0.42      10.5 +/-    0.42  0.170 / 0.660
G16     290.3          15.3                9.3 +/-    1.81      23.0 +/-    1.81  0.190 / 0.580
G20     278.3          54.5               10.4 +/-    1.01      12.5 +/-    1.01  0.070 / 0.230
G21     340.1          63.1                8.6 +/-    0.54       9.5 +/-    0.54  0.070 / 0.240
G26     263.3          13.3               11.2 +/-    1.87      28.9 +/-    1.87  0.030 / 0.050
G29     165.0          44.3               10.4 +/-    0.94      14.1 +/-    0.94  0.030 / 0.040