PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/08-00:57:50
G07     317.2          51.9                3.8 +/-    1.24       4.7 +/-    1.24  0.120 / 0.160
G08     115.1          46.6                8.3 +/-    0.61      10.9 +/-    0.61  0.100 / 0.150
G09     196.1          82.0                4.7 +/-    0.68       4.8 +/-    0.68  0.050 / 0.080
G16     43.9           14.6                1.2 +/-    1.43       3.1 +/-    1.43  0.040 / 0.070
G23     150.8          54.8                5.5 +/-    0.72       6.6 +/-    0.72  0.190 / 0.480
G27     67.9           35.8                4.0 +/-    0.59       6.3 +/-    0.59  0.150 / 0.330
G28     227.8          11.9                5.1 +/-   12.66      13.7 +/-   12.66  0.050 / 0.070
G30     291.1          24.5                5.7 +/-    1.95      11.3 +/-    1.95  0.040 / 0.060