PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/23-05:27:50
G01     73.6           32.1                5.5 +/-    1.64       9.3 +/-    1.64  0.040 / 0.030
G07     134.3          35.0                8.8 +/-    0.95      14.0 +/-    0.95  0.040 / 0.030
G11     58.7           37.2                5.4 +/-    1.01       8.2 +/-    1.01  0.090 / 0.260
G13     278.6          39.1                7.6 +/-    1.31      11.2 +/-    1.31  0.080 / 0.300
G15     304.1          15.5                1.7 +/-    1.35       4.2 +/-    1.35  0.070 / 0.060
G17     224.5          65.5                9.5 +/-    0.75      10.3 +/-    0.75  0.050 / 0.050
G19     219.9          40.4                8.7 +/-    1.81      12.6 +/-    1.81  0.050 / 0.040
G28     353.5          61.5                5.9 +/-    0.93       6.7 +/-    0.93  0.030 / 0.030
G30     130.0          70.2                9.2 +/-    1.14       9.7 +/-    1.14  0.070 / 0.080