PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/23-05:27:50
G01     107.1          25.4                6.0 +/-    0.61      11.7 +/-    0.61  0.020 / 0.020
G07     108.0          56.5                7.2 +/-    0.45       8.5 +/-    0.45  0.030 / 0.030
G08     41.5           18.0                2.2 +/-    0.70       5.0 +/-    0.70  0.080 / 0.180
G09     172.9          11.3                4.0 +/-    1.40      10.9 +/-    1.40  0.080 / 0.180
G11     86.7           42.5                6.9 +/-    0.89       9.7 +/-    0.89  0.040 / 0.070
G13     309.5          29.0               -0.5 +/-    2.60      -0.9 +/-    2.60  0.080 / 0.060
G17     204.6          40.3                7.8 +/-    1.72      11.3 +/-    1.72  0.040 / 0.060
G19     209.3          10.6               -2.1 +/-    9.99      -5.9 +/-    9.99  0.040 / 0.060
G28     313.9          60.3                6.3 +/-    0.67       7.1 +/-    0.67  0.030 / 0.040
G30     14.7           77.7                6.6 +/-    0.67       6.7 +/-    0.67  0.030 / 0.050