PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/11-04:27:50
G01     65.9           31.1                5.9 +/-    0.98      10.1 +/-    0.98  0.030 / 0.040
G07     138.2          29.6                8.4 +/-    2.45      14.9 +/-    2.45  0.030 / 0.030
G11     54.0           33.5                4.6 +/-    1.41       7.4 +/-    1.41  0.120 / 0.220
G13     270.2          38.5                6.9 +/-    2.41      10.3 +/-    2.41  0.140 / 0.220
G15     297.8          17.0                4.7 +/-    2.42      11.1 +/-    2.42  0.120 / 0.080
G17     235.6          71.9                7.8 +/-    0.45       8.1 +/-    0.45  0.100 / 0.080
G19     224.6          46.4                8.2 +/-    2.28      10.8 +/-    2.28  0.040 / 0.050
G28     5.2            61.3                4.8 +/-    0.65       5.4 +/-    0.65  0.050 / 0.060
G30     138.4          64.4                8.0 +/-    0.78       8.8 +/-    0.78  0.070 / 0.130