PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/02/04-04:57:40
G02     221.6          66.4                4.1 +/-    0.76       4.4 +/-    0.76  0.040 / 0.080
G06     50.1           74.2                2.4 +/-    0.50       2.5 +/-    0.50  0.060 / 0.060
G12     319.3          39.0                1.1 +/-    0.96       1.6 +/-    0.96  0.270 / 0.380
G17     62.9           26.8                0.9 +/-    2.68       1.6 +/-    2.68  0.150 / 0.390
G19     44.1           46.5                2.7 +/-    1.03       3.5 +/-    1.03  0.080 / 0.080
G24     254.1          40.2                4.2 +/-    4.26       6.1 +/-    4.26  0.070 / 0.100
G28     125.3          12.2                4.6 +/-    1.93      12.3 +/-    1.93  0.040 / 0.030