PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/25-06:57:30
G01     89.9           30.6                5.7 +/-    0.46       9.9 +/-    0.46  0.030 / 0.030
G07     123.8          46.2                7.6 +/-    1.47      10.1 +/-    1.47  0.030 / 0.030
G11     72.5           43.0                4.9 +/-    0.56       6.8 +/-    0.56  0.040 / 0.080
G13     295.4          36.8                6.3 +/-    1.03       9.7 +/-    1.03  0.040 / 0.070
G17     212.0          51.2                9.4 +/-    1.11      11.6 +/-    1.11  0.070 / 0.120
G19     212.6          27.7                6.9 +/-    2.61      12.7 +/-    2.61  0.090 / 0.120
G28     328.5          60.7                4.3 +/-    1.17       4.8 +/-    1.17  0.040 / 0.050
G30     88.9           80.0                6.0 +/-    0.67       6.1 +/-    0.67  0.050 / 0.050