PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/02/26-19:27:50
G03     189.5          20.7               11.9 +/-    2.67      25.7 +/-    2.67  0.130 / 0.140
G07     292.2          40.7               10.2 +/-    3.21      14.7 +/-    3.21  0.120 / 0.160
G08     140.1          27.8               10.2 +/-    1.52      18.6 +/-    1.52  0.140 / 0.210
G09     320.7          61.6                9.3 +/-    0.85      10.4 +/-    0.85  0.260 / 0.200
G16     44.3           44.2                8.6 +/-    0.94      11.7 +/-    0.94  0.030 / 0.030
G23     105.2          81.8                9.4 +/-    0.49       9.5 +/-    0.49  0.050 / 0.040
G26     43.8           16.8                8.0 +/-    2.44      18.9 +/-    2.44  0.050 / 0.080
G27     103.7          33.2               11.3 +/-    0.93      18.5 +/-    0.93  0.060 / 0.080
G30     273.0          12.1               10.6 +/-    1.90      28.2 +/-    1.90  0.050 / 0.070