PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/21-05:12:50
G01     86.6           31.2                6.8 +/-    1.71      11.7 +/-    1.71  0.030 / 0.020
G07     126.0          44.7                9.9 +/-    0.64      13.4 +/-    0.64  0.030 / 0.020
G11     70.2           42.7                7.1 +/-    0.61       9.9 +/-    0.61  0.180 / 0.350
G13     292.4          37.7                3.5 +/-    4.44       5.2 +/-    4.44  0.160 / 0.250
G15     312.9          11.8                3.1 +/-    2.31       8.3 +/-    2.31  0.040 / 0.050
G17     213.6          54.7                9.5 +/-    0.85      11.4 +/-    0.85  0.040 / 0.050
G19     213.7          30.2                8.3 +/-    1.93      14.5 +/-    1.93  0.040 / 0.040
G28     332.3          60.9                5.8 +/-    0.49       6.5 +/-    0.49  0.040 / 0.040
G30     99.5           79.2                6.8 +/-    0.54       6.9 +/-    0.54  0.040 / 0.080