PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/23-05:12:40
G01     82.0           31.8                4.4 +/-    1.18       7.4 +/-    1.18  0.030 / 0.030
G07     129.2          41.3                8.3 +/-    0.60      11.8 +/-    0.60  0.030 / 0.030
G11     65.8           41.1                4.7 +/-    1.05       6.8 +/-    1.05  0.080 / 0.230
G13     287.7          38.6                4.7 +/-    2.41       7.0 +/-    2.41  0.090 / 0.180
G15     309.9          13.3                1.3 +/-    1.46       3.5 +/-    1.46  0.040 / 0.060
G17     216.7          58.6                8.2 +/-    0.80       9.5 +/-    0.80  0.040 / 0.050
G19     215.7          33.8                8.6 +/-    1.39      14.0 +/-    1.39  0.050 / 0.060
G28     339.7          61.3                4.9 +/-    0.50       5.5 +/-    0.50  0.060 / 0.050
G30     114.2          76.5                7.2 +/-    0.80       7.4 +/-    0.80  0.050 / 0.080