PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/13-16:58:00
G10     294.4          51.7                9.4 +/-    2.50      11.6 +/-    2.50  0.070 / 0.080
G15     46.3           28.6                8.0 +/-    0.85      14.5 +/-    0.85  0.050 / 0.080
G20     351.2          65.4                9.1 +/-    0.65      10.0 +/-    0.65  0.340 / 0.450
G21     84.0           75.6               10.2 +/-    0.38      10.5 +/-    0.38  0.350 / 0.480
G24     103.1          25.3               10.1 +/-    1.85      19.6 +/-    1.85  0.040 / 0.040
G27     304.2          32.9                7.7 +/-    2.26      12.8 +/-    2.26  0.030 / 0.040
G29     168.2          11.6               11.6 +/-    4.07      31.1 +/-    4.07  0.090 / 0.090
G32     208.4          30.0               12.8 +/-    1.85      22.4 +/-    1.85  0.100 / 0.070