PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/04-22:57:40
G10     263.9          37.6               10.9 +/-    1.42      16.5 +/-    1.42  0.130 / 0.340
G13     43.1           19.7                7.6 +/-    2.08      16.8 +/-    2.08  0.150 / 0.320
G15     62.8           51.1                9.8 +/-    0.59      12.2 +/-    0.59  0.120 / 0.380
G16     282.4          13.5                9.7 +/-    0.91      24.9 +/-    0.91  0.100 / 0.360
G20     291.7          58.6               10.5 +/-    0.84      12.1 +/-    0.84  0.040 / 0.040
G21     354.2          69.1                9.0 +/-    0.43       9.5 +/-    0.43  0.040 / 0.050
G24     124.1          12.2               10.5 +/-    2.80      27.9 +/-    2.80  0.080 / 0.310
G27     320.3          15.7                5.5 +/-    1.43      13.5 +/-    1.43  0.090 / 0.230
G29     166.5          34.5                9.8 +/-    1.70      15.6 +/-    1.70  0.070 / 0.070