PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/30-21:58:10
G01     225.4          18.6                8.3 +/-    1.91      18.8 +/-    1.91  0.040 / 0.040
G03     296.1          65.1                4.7 +/-    1.36       5.1 +/-    1.36  0.040 / 0.040
G14     81.4           29.8                7.9 +/-    1.19      13.8 +/-    1.19  0.080 / 0.170
G16     146.1          42.6               10.9 +/-    0.59      15.2 +/-    0.59  0.080 / 0.170
G22     228.7          72.3                7.7 +/-    0.95       8.0 +/-    0.95  0.050 / 0.100
G23     305.2          35.3                7.2 +/-    1.26      11.4 +/-    1.26  0.050 / 0.100
G26     102.5          53.5                8.7 +/-    0.90      10.5 +/-    0.90  0.040 / 0.040
G31     44.6           34.5                6.6 +/-    1.43      10.5 +/-    1.43  0.040 / 0.040