PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/31-00:12:30
G01     223.5          16.4               11.9 +/-    2.52      28.6 +/-    2.52  0.040 / 0.040
G03     289.1          67.1                7.2 +/-    0.64       7.8 +/-    0.64  0.030 / 0.040
G14     84.6           27.4                6.5 +/-    1.11      12.0 +/-    1.11  0.070 / 0.080
G16     143.3          45.7               12.3 +/-    1.50      16.4 +/-    1.50  0.040 / 0.100
G22     221.1          70.3                9.4 +/-    0.95       9.9 +/-    0.95  0.090 / 0.180
G23     307.9          38.1                7.2 +/-    0.94      10.8 +/-    0.94  0.090 / 0.160
G26     95.9           54.0                8.4 +/-    0.51      10.1 +/-    0.51  0.120 / 0.250
G31     45.9           30.9                5.8 +/-    0.38      10.0 +/-    0.38  0.090 / 0.240