PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/23-04:57:50
G01     90.3           30.4                7.4 +/-    0.39      12.8 +/-    0.39  0.030 / 0.030
G07     123.0          47.5                7.3 +/-    0.61       9.5 +/-    0.61  0.030 / 0.030
G11     74.3           43.8                6.0 +/-    0.84       8.3 +/-    0.84  0.090 / 0.230
G13     296.1          36.7                6.0 +/-    1.25       9.3 +/-    1.25  0.170 / 0.330
G15     315.2          10.5               -7.6 +/-   13.74     -21.0 +/-   13.74  0.040 / 0.080
G17     211.3          51.5                8.9 +/-    0.82      11.0 +/-    0.82  0.040 / 0.070
G19     212.3          27.3                7.8 +/-    3.02      14.4 +/-    3.02  0.050 / 0.070
G28     326.2          60.4                4.9 +/-    1.27       5.6 +/-    1.27  0.040 / 0.060
G30     81.6           80.9                6.9 +/-    0.48       7.0 +/-    0.48  0.070 / 0.120