PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/30-09:12:50
G01     72.0           32.2                4.8 +/-    1.19       8.1 +/-    1.19  0.070 / 0.080
G07     135.5          32.0                5.1 +/-    0.72       8.6 +/-    0.72  0.060 / 0.100
G11     56.1           34.6                5.6 +/-    1.73       9.0 +/-    1.73  0.080 / 0.100
G13     276.3          38.9                5.7 +/-    1.29       8.4 +/-    1.29  0.090 / 0.120
G15     304.6          14.7                0.4 +/-    1.54       0.9 +/-    1.54  0.080 / 0.170
G17     227.0          65.1                6.1 +/-    1.11       6.6 +/-    1.11  0.080 / 0.250
G18     50.3           19.2                4.2 +/-    1.74       9.5 +/-    1.74  0.090 / 0.100
G19     221.3          41.8                5.7 +/-    1.38       8.1 +/-    1.38  0.100 / 0.100
G28     359.4          61.4                4.4 +/-    0.70       4.9 +/-    0.70  0.040 / 0.030
G30     132.9          66.6                5.5 +/-    0.41       5.9 +/-    0.41  0.040 / 0.030