PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/22-23:12:50
G01     319.9          16.7              -21.0 +/-   23.77     -50.2 +/-   23.77  0.140 / 0.340
G08     263.3          15.3               10.8 +/-    1.61      26.8 +/-    1.61  0.130 / 0.340
G10     75.3           53.4                8.9 +/-    0.99      10.7 +/-    0.99  0.130 / 0.200
G11     307.6          19.7                9.0 +/-    1.31      19.9 +/-    1.31  0.050 / 0.060
G14     278.9          67.9                9.2 +/-    0.86       9.8 +/-    0.86  0.050 / 0.070
G18     307.9          38.2                9.1 +/-    1.23      13.6 +/-    1.23  0.200 / 0.320
G20     102.9          30.5               10.0 +/-    0.80      17.3 +/-    0.80  0.140 / 0.280
G27     226.7          11.6               11.0 +/-    3.36      29.6 +/-    3.36  0.070 / 0.100
G31     175.5          38.9               11.3 +/-    0.94      16.8 +/-    0.94  0.060 / 0.090
G32     1.1            70.0                8.7 +/-    0.53       9.2 +/-    0.53  0.030 / 0.030