PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/12-05:28:10
G01     40.6           15.8                2.6 +/-    1.73       6.4 +/-    1.73  0.060 / 0.090
G06     174.3          36.8                8.2 +/-    1.43      12.5 +/-    1.43  0.050 / 0.100
G13     237.7          24.0                6.5 +/-    1.36      13.0 +/-    1.36  0.230 / 0.390
G15     269.5          13.1                5.6 +/-    1.07      14.7 +/-    1.07  0.230 / 0.380
G17     0.2            71.8                6.7 +/-    0.76       7.0 +/-    0.76  0.110 / 0.230
G19     274.7          70.2                6.3 +/-    0.48       6.6 +/-    0.48  0.100 / 0.250
G24     317.3          16.3                2.7 +/-    2.03       6.6 +/-    2.03  0.040 / 0.070
G28     58.5           54.2                5.2 +/-    0.35       6.3 +/-    0.35  0.040 / 0.060
G30     155.4          33.5                8.6 +/-    0.93      14.1 +/-    0.93  0.040 / 0.040