PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/19-15:12:30
G10     252.2          29.9                7.7 +/-    1.80      13.6 +/-    1.80  0.160 / 0.430
G13     51.3           27.5                5.2 +/-    2.70       9.6 +/-    2.70  0.140 / 0.330
G15     78.4           55.4                8.6 +/-    0.78      10.2 +/-    0.78  0.060 / 0.040
G16     293.1          15.9                7.1 +/-    1.93      17.2 +/-    1.93  0.060 / 0.050
G20     275.3          54.4                9.6 +/-    2.68      11.5 +/-    2.68  0.040 / 0.040
G21     337.3          61.4                7.5 +/-    0.91       8.4 +/-    0.91  0.040 / 0.040
G26     266.8          14.7                5.5 +/-    2.22      13.7 +/-    2.22  0.120 / 0.100
G29     164.4          49.3               10.4 +/-    0.75      13.2 +/-    0.75  0.140 / 0.140