PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/16-13:28:10
G02     218.3          60.1                6.2 +/-    0.80       7.0 +/-    0.80  0.100 / 0.260
G06     52.8           71.7                7.8 +/-    0.80       8.2 +/-    0.80  0.120 / 0.310
G12     318.8          38.4                4.0 +/-    1.26       6.0 +/-    1.26  0.040 / 0.030
G17     57.2           32.8                5.1 +/-    0.64       8.4 +/-    0.64  0.030 / 0.020
G19     42.9           46.4                5.3 +/-    0.97       7.0 +/-    0.97  0.040 / 0.070
G24     264.3          40.6                6.0 +/-    2.17       8.7 +/-    2.17  0.040 / 0.080
G28     121.8          18.6                7.3 +/-    1.86      16.6 +/-    1.86  0.060 / 0.080