PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/27-11:12:30
G02     200.6          18.6                4.9 +/-    1.94      11.1 +/-    1.94  0.090 / 0.160
G06     169.0          53.7                6.2 +/-    0.41       7.4 +/-    0.41  0.080 / 0.170
G13     226.3          13.9                5.8 +/-    2.04      14.9 +/-    2.04  0.180 / 0.350
G17     18.5           61.7                4.8 +/-    0.73       5.4 +/-    0.73  0.150 / 0.840
G19     326.7          71.7                3.7 +/-    1.12       3.8 +/-    1.12  0.030 / 0.030
G24     310.9          27.8                1.9 +/-    0.86       3.5 +/-    0.86  0.040 / 0.030
G28     81.3           46.1                5.9 +/-    0.92       7.8 +/-    0.92  0.040 / 0.040
G30     157.7          16.9                4.6 +/-    1.42      10.9 +/-    1.42  0.040 / 0.050