PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/19-03:28:00
G01     80.8           31.8                5.8 +/-    1.08       9.8 +/-    1.08  0.040 / 0.020
G07     129.7          41.3                8.1 +/-    0.27      11.6 +/-    0.27  0.030 / 0.030
G11     65.8           41.5                5.9 +/-    0.97       8.4 +/-    0.97  0.100 / 0.260
G13     286.7          38.8                7.6 +/-    1.46      11.2 +/-    1.46  0.060 / 0.280
G15     308.7          14.1                2.2 +/-    1.66       5.5 +/-    1.66  0.080 / 0.140
G17     217.2          60.0                9.2 +/-    1.19      10.4 +/-    1.19  0.070 / 0.110
G19     216.0          34.5                8.8 +/-    1.11      14.1 +/-    1.11  0.050 / 0.040
G28     339.9          61.2                5.4 +/-    0.46       6.0 +/-    0.46  0.040 / 0.050
G30     115.6          76.5                6.8 +/-    0.92       6.9 +/-    0.92  0.050 / 0.070